Template For ENG STDS WORLDWIDE ENGINEERING Material … · 2019. 7. 31. · Template For ENG STDS WORLDWIDE ENGINEERING STANDARDS Material Specification GMW14122 Plastic Roll Goods

Template For ENG STDS

WORLDWIDE ENGINEERING STANDARDS

Material Specification GMW14122

Plastic Roll Goods

© Copyright 2015 General Motors Company All Rights Reserved

December 2015 Page 1 of 27

1 Scope

1.1 Material Description. Plastic Roll Goods (PRG) covered by this specification consists of two (2) basic construction types; Supported and Unsupported. PRG materials shall be compounded to be flexible, free from tackiness and compatible with other PRG materials, plastics, fabrics and coated genuine leather. Plastic roll goods must be free from pinholes, pitting or dimpling. The material must be capable of being routinely handled in the manufacturing process without damage.

1.1.1 Supported PRG. The material shall consist of a synthetic polymer skin such as Polyvinyl Chloride (PVC), Thermoplastic Olefin (TPO) or Polyurethane (PUR), supported by a textile fabric. The material may also include a laminated foam (flame or adhesive lamination) or foam/scrim back-layer. These materials are typically processed by cut and sew, wrapping and low pressure molding. The supported PRG can be a bilaminate (PRG + foam) or trilaminate (PRG + foam + scrim).

1.1.2 Unsupported PRG. The material shall consist of a synthetic polymer skin such as PVC, TPO or PUR, with no fabric backing, but may include a foam back-layer (bilaminate), or a foam/skin back-layer (trilaminate). These materials are typically processed by methods such as vacuum thermoforming and low pressure molding.

1.2 Symbols. The finish symbol code defines the material construction and will be assigned by the responsible department. Trim materials are described by finish symbols which define the commodity, construction, backings, gloss, grain and color. The construction code is a unique identifier of the technology used to make a particular product. The construction code is described in detail on the appropriate completed Supported, Unsupported or Laminate Construction Specification Data Sheets.

Note: See Appendix A, Data Sheets A1, A2 and A3 for examples of the Construction Specification Data Sheets. Actual forms can be downloaded from http://www.gmsupplypower.com. The GM SupplyPower folder path is: Document Library, Engineering, Global, Product Design. Folder title: "Textile GMW's – Forms, Templates, and Finish Symbols". Document: " GMW14122 Rev. 2015 Plastic Roll Goods Material Specification Forms".

1.3 Applicability. The requirements in this specification are defined based on Type, relative to the application of the PRG on the part.

Type A: Supported PRG for use on Seats, Door/Console Armrests, and Instrument Panel (IP)/Door Inserts Mid or Lower.

Type B: Supported PRG for use on IP Uppers and Door Uppers (includes High Heat/Ultraviolet (UV) Resistance).

Type C: Supported PRG for use on Shift Boots and Steering Column Closeouts.

Type D: Supported PRG for use on Steering Wheels and Shift Knobs.

Type E: Unsupported PRG for use on IP, Doors and Rear Shelves.

Type F: Unsupported PRG for use on Deployable IPs.

Type G: Unsupported PRG for use on Visors and Headliners.

Note: For requirements for vehicles without solar absorbing glass, contact the appropriate Materials Engineer. All interior materials are developed to be used in vehicles with solar glass; therefore, performance may be compromised if used in non-solar glass vehicles.

1.4 Remarks. Not applicable.

GM WORLDWIDE ENGINEERING STANDARDS Template For ENG STDS GMW14122



2 References

Note: Only the latest approved standards are applicable unless otherwise specified.

2.1 External Standards/Specifications.

ISO 105-A01 ISO 105-X12 ISO 5402 ISO 13937-2

ISO 105-A02 ISO 216 ISO 6603-1 ISO 15701

ISO 105-A03 ISO 868 ISO 6603-2 ISO/IEC 17025

ISO 105-B06 ISO 2589 ISO 11640 VDA 230-206

ISO 105-E04 ISO 5084 ISO 12219-2 VDA 230-223

ISO 105-G02 ISO 12219-4 VDA 230-225

2.2 GM Standards/Specifications.

GMW3010 GMW3235 GMW14126 GMW14444

GMW3059 GMW3390 GMW14127 GMW14445

GMW3182 GMW3402 GMW14130 GMW14864

GMW3205 GMW3405 GMW14131 GMW15058

GMW3208 GMW3417 GMW14132 GMW15377

GMW3211 GMW4217 GMW14145 GMW15634

GMW3220 GMW6992 GMW14162 GMW15635

GMW3221 GMW14124 GMW14296 GMW16853

GMW3232 GMW14125

2.3 Additional References.

Editable construction/certification data forms available at http://www.gmsupplypower.com (see Appendix A and B for examples).

Verband Der Automobilindustrie (VDA) (Association of the Automotive Industry) forms available at http://dkf-ev.de/vdaeng.htm.

3 Requirements

3.1 General Requirements.

3.1.1 Requirements on Test Specimens. Reference GMW3221. All test specimens shall be conditioned to GMW3221, Code A, for a minimum of 24 h before and after completion of test unless the test method indicates that standard conditioning is not required.

3.1.2 Sampling and Test Specimen Preparation. Cut specimens no closer than 50 mm from the edges. Specimens cut from machine and cross machine direction should be cut across the roll (side, center, side). The longest dimension of the specimen, as it aligns to the machine direction of the roll, identifies the specimen direction Machine Direction (MD) or Cross Machine Direction (CMD).

3.1.3 Visual Evaluation of Automotive Trim (GMW6992). The color, pattern, aesthetics and other related qualities shall be approved by the appropriate engineering department as an acceptable match to the standard when viewed under conditions set forth in GMW6992. See the appropriate completed Supported, Unsupported or Laminated Construction Specification Data Sheets for pattern and finish information (see Appendix A, Data Sheets A1, A2 and A3).

3.1.3.1 Haptic and Surface Feel. The aesthetic haptic of the PRG shall be approved by General Motors to the GM Haptic Standard (when one exists), or to GM Design direction as identified by GM for new construction developments. To ensure a consistent haptic level, final approval for any second source construction haptic must be given by the originating region of that construction. Haptic approval is required to be completed on production run material in both a Black (600R-Jet Black or similar value and hue) and a Light Beige (314N-Vy Lt Cashmere or similar value and hue) prior to construction approval. All construction testing must be run using the lot of material that received haptic approval. Haptic approval must be reported on the appropriate completed Construction Certification Data Form (see Appendix B, Data Sheet B1).




GM and the PRG supplier shall retain signed pieces representing the acceptable hand of the PRG. The hand of the PRG in every shipment shall be equivalent to the original approved construction piece, as well as not degrading from the GM Haptic Standard.

3.1.4 Deviations from Defined Test Methods. Deviations from the conditions of any test method shall have been agreed upon between supplier and vehicle manufacturer. All deviations shall be specified on the component drawings, material specifications, etc., and shall be indicated on test certificates, reports, trim transmittal, etc.

3.1.5 Laboratory Accreditation and Test Data. Laboratory testing shall be performed by a laboratory that conforms to ISO/IEC 17025 (see Note) and is acceptable to the responsible GM department. Test reports must conform to ISO/IEC 17025. Supplier shall submit a letter of compliance.

Note: Meets requirements of ISO/IEC 17025, but does not need to be verified by a third party accrediting agency.

3.1.6 Data Reporting. All required information shall be entered into the appropriate Construction, Color or Laminate Lab Certification Data Form. If all individual readings of a specific test meet or exceed the specified requirements, report the average. Report all individual test results if any values do not meet the requirements, unless otherwise stated.

Note: See Appendix B, Data Sheets B1, B2 and B3 for examples of the Certification Data Forms. Editable forms can be downloaded from http://www.gmsupplypower.com using the GM SupplyPower folder path: Document Library, Engineering, Global, Product Design. Folder title: "Textile GMW's – Forms, Templates, and Finish Symbols". Document: " GMW14122 Rev. 2015 Plastic Roll Goods Material Specification Forms". The Verband Der Automobilindustrie (VDA) (Association of the Automotive Industry) form can be downloaded: http://dkf-ev.de/vdaeng.htm.

3.1.7 Test Specimens. All tested specimens submitted to GM by suppliers shall be stapled to size A4 (or letter size) white cardstock. On each card, list the test report number, material specification and section number, test date, observations, and disposition. The sheets must be arranged so that they are in order by section number and submitted in a ring binder.

3.1.8 Documentation. Samples of components or material released to this specification shall be tested for conformity with the requirements of this specification and approved by the responsible GM department prior to the start of delivery of production level components or materials.

Any change to the component or material, (e.g., design, function, properties, manufacturing process and/or location of manufacturer) requires a new release of the product. It is the sole responsibility of the supplier to provide the customer, unsolicited, with documentation of any change or modification to the product/process, and to apply for a new release.

If not otherwise agreed to, the entire verification test shall be repeated and documented by the supplier prior to start of delivery of the modified or changed product. In some cases, a shorter test can be agreed to between the responsible GM department and the supplier.

3.2 Construction Requirements. These requirements describe the initial testing that shall be completed for a new PRG construction approval. Construction testing must be completed using the same lots of material that were granted haptic approval. For tests requiring multiple lots of data, limited approval will be given based on testing the first two (2) lots, Black (600R-Jet Black or similar value and hue) and Light Beige (314N-Vy Lt Cashmere or similar value and hue). Additional lot testing may be done using different colors. Full approval will be given and construction tolerances will be set once four (4) additional lots have been tested and meet the requirements. Record results of 3.2.1 thru 3.2.35 on the Plastic Roll Good Construction Certification Data Form (see Appendix B, Data Sheet B1 for an example.) All required information shall be supplied on the appropriate Supported or Unsupported Construction Specification Data Sheet (Appendix A, Data Sheets A1 or A2) and submitted with each PRG for engineering construction approval.

3.2.1 Weight (GMW3182). All PRG Types. Testing is required to be completed on six (6) lots of material. For each lot of material, weigh three (3) specimens and record the average in grams per square meter (g/m2). Refer to the appropriate Construction Specification Data Sheet for the specific Construction Code based requirement.

3.2.2 Thickness (ISO 2589). All PRG Types. Testing is required to be completed on six (6) lots of material. For each lot of material, test three (3) specimens and record the average in millimeters to the nearest tenth of a millimeter. Refer to the appropriate Construction Specification Data Sheet for the specific Construction Code based requirement.




3.2.3 Shore Hardness (ISO 868). Type E and F PRG only. Testing is required to be completed on six (6) lots of material. Two (2) separate measurements are to be taken. First measure the TPO skin layer only (do not include any foam layers) and second measure the complete TPO laminate, if applicable. For each lot of material, test three (3) specimens using a 15 s ± 1 s delay and record the average Shore A Hardness. If Shore A is ≥ 90, repeat the testing using Shore D. Refer to the appropriate Construction Specification Data Sheet for the specific Construction Code based requirement.

3.2.4 Tensile Force at Break (GMW3010). Type A, B, C, and D PRG only. For Knit and Non-woven Supported PRG use Code H and for Woven Supported PRG use Code J. Testing is required to be completed on six (6) lots of material. Test three (3) specimens from the MD and three (3) specimens from the CMD, record the average for each direction in Newtons (N). Attach the Force Elongation Curve to the Lab Construction Certification Form. A minimum of 200 N is required unless otherwise specified on the Construction Specification Data Sheet for the specific Construction Code.

3.2.5 Maximum Tensile Force (GMW3010). Type E, F, and G PRG only. For Unsupported PRG use Code N. Testing is required to be completed on six (6) lots of material. For 3.2.5.1 thru 3.2.5.3, test three (3) specimens from the MD and three (3) specimens from the CMD, record the average for each direction in Newtons (N). Attach the Force Elongation Curve to the Lab Construction Certification Form. Refer to the appropriate Construction Specification Data Sheet for the specific Construction Code based requirements.

3.2.5.1 Room Temperature. Test at 22 °C ± 3 °C.

3.2.5.2 Hot. Test at 85 °C ± 3 °C. Specimens shall be conditioned at the test temperature for a minimum of 4 h prior to testing.

3.2.5.3 Cold. Test at -30 °C ± 3 °C. Specimens shall be conditioned at the test temperature for a minimum of 4 h prior to testing.

3.2.6 Elongation at Break. Type E, F, and G PRG only. Testing is required to be completed on six (6) lots of material. For 3.2.6.1 thru 3.2.6.3, test three (3) specimens from the MD and three (3) specimens from the CMD, record the average for each direction in percent (%). Refer to the appropriate Construction Specification Data Sheet for the specific Construction Code based requirement.

3.2.6.1 Room Temperature. Test at 22 °C ± 3 °C.

3.2.6.2 Hot. Test at 85 °C ± 3 °C. Specimens shall be conditioned at the test temperature for a minimum of 4 h prior to testing.

3.2.6.3 Cold. Test at -30 °C ± 3 °C. Specimens shall be conditioned at the test temperature for a minimum of 4 h prior to testing.

3.2.7 Multiaxial Impact (ISO 6603-1 and ISO 6603-2). Type F PRG only. Testing is required to be completed on six (6) lots of material. For each lot of material, test three (3) specimens. Specimens shall be impacted from the back side of the material to simulate airbag deployment. Record the average Energy at Maximum Load in Joules (J) and attach the Energy Curve. Refer to the appropriate Construction Specification Data Sheet for the specific Construction Code based requirement.

3.2.8 Tear Strength, Trouser (ISO 13937-2). Type A, B, C and D PRG only. Testing is required to be completed on six (6) lots of material. Test three (3) specimens from the MD and three (3) specimens from the CMD, record the average for each direction in Newtons (N). A minimum of 20 N is required unless otherwise specified on the Construction Specification Data Sheet for the specific Construction Code.

3.2.9 Shrinkage (GMW4217). Type B, D, E and F PRG only. Testing is required to be completed on six (6) lots of material. For 3.2.9.1 thru 3.2.9.3, cut three (3) specimens 300 mm × 300 mm and identify the MD and CMD on the test specimen for each specified test cycle, see Figure 1. Record the percentage change separately in both directions. Refer to the appropriate Construction Specification Data Sheet for the specific Construction Code based requirement.




Figure 1: Shrinkage Test Specimen

3.2.9.1 Heat/Humidity Cycle (GMW14124). Cycle R, repeat cycle 20 times for 240 h total exposure.

3.2.9.2 Environmental Cycling (GMW14124). Cycle M, repeat cycle two (2) times.

3.2.9.3 High Heat. Expose specimens to 120 °C in a mechanical convection oven for 168 h. Evaluate after specimen has reached room temperature.

3.2.10 Stretch and Set (GMW3211). Type A, B, C and D PRG only. Testing is required to be completed on six (6) lots of material. Test three (3) specimens in the MD and three (3) specimens from the CMD using a 100 N load. Record the average for each direction if all specimens meet the requirement. If any individual specimen does not meet the requirement, report all values. Refer to the appropriate Construction Specification Data Sheet for the specific Construction Code based requirement.

3.2.11 Flexibility (GMW3390). Type A, B, C and D PRG only. Testing is required to be completed on six (6) lots of material. Cut three (3) specimens in the MD and three (3) specimens in the CMD. Measure all six (6) specimens finished side up only and record the average for each direction in millimeters (mm). Refer to the appropriate Construction Specification Data Sheet for the specific Construction Code based requirement.

3.2.12 Bond Strength (GMW3220). Type A, B, C, D, E and F PRG only. Testing is required to be completed on six (6) lots of material. Test the bond strength of three (3) specimens from the MD and three (3) specimens from the CMD and record the average for each direction in N/5 cm. The minimum bond strength must be maintained between all layers. For foam laminated Unsupported materials the minimum requirement shall be 18 N/5 cm, for all other applications refer to the appropriate Construction Specification Data Sheet for the specific Construction Code based requirements.

Note: If the foam tears, report the maximum force before the break occurs (in N), separately from other readings.

3.2.13 Friction (VDA 230-206). Type A, B, C and D PRG only. Test shall be performed without foam lamination. See Construction Specification Data Sheet for the specific Construction Code based requirements, if applicable.

3.2.14 Flammability (GMW3232). All PRG Types. Test on Black material. For initial approvals and routine quality control, see GMW3232. After completion of the flammability test, record results in millimeter/minute on the Plastic Roll Good Construction Certification Data Form (Appendix B, Data Sheet B1) and attach the Flammability Test Report from GMW3232, Appendix B. Requirement is a Maximum Statistical Burn Rate (BStat) value less than or equal to 100 mm/minute. For full global approval, testing must be done without the use of wires. If the material does not pass without wires, the testing may be repeated using wires and a limited approval given for those regions that allow the use of wires. An editable copy of the GMW3232 worksheet is available at http://www.gmsupplypower.com.

3.2.14.1 As Received. Test immediately following standard GMW3221, Code A conditioning.

3.2.14.2 After Aging. The test cycle shall commence with 48 h ± 1 h at 40 °C ± 3 °C and 93% Relative Humidity (RH) ± 5% RH, followed by 168 h ± 1 h at +90 °C ± 3 °C. Complete the test cycle without interruption. Repeat standard GMW3221, Code A conditioning before testing flammability.

3.2.15 Seam Fatigue (GMW3405). Type A and C PRG only. Test on Black material. Record the hole size for each of the three (3) test directions in millimeters. For all three (3) pairs, the joining seam shall have no needle holes measuring > 2 mm nor an objectionable seam appearance after 2500 cycles.

3.2.16 Seam Strength (GMW14145). Type A, B, C and D PRG only. Test on Black material. Test one (1) specimen in each of the follow three (3) orientations, MD/MD, CMD/CMD, and MD/CMD. Report the maximum seam strength in Megapascal(s) (MPa) for information only.




3.2.17 Bally Flex Resistance (ISO 5402). Type A and C PRG only. Test on Black material. For 3.2.17.1 thru 3.2.17.7, test two (2) specimens from the MD and two (2) specimens from the CMD. Type C PRG constructions shall be run to twice the number of the required cycles for 3.2.17.1 thru 3.2.17.3. Record all results. There shall be no cracking, crazing or loss of topcoat adhesion when evaluated using 10x magnification.

3.2.17.1 Room Temperature. Test at 22 °C ± 3 °C for 100 000 cycles.

3.2.17.2 Cold. Test at -20 °C ± 3 °C for 30 000 cycles.

3.2.17.3 After Humidity (GMW14124). Follow Cycle Q, then condition for 24 h to GMW3221, Code A. After conditioning, test at 22 °C ± 3 °C for 100 000 cycles.

3.2.17.4 After Heat Aging. Age at 100 °C ± 3 °C for 336 h followed by testing at 22 °C ± 3 °C for 100 000 cycles.

3.2.17.5 Cold After Heat Aging. Age at 100 °C ± 3 °C for 336 h followed by testing at -20 °C ± 3 °C for 10 000 cycles.

3.2.17.6 After Oil Exposure. Condition specimens according to VDA 230-225, Section 6 followed by testing at 22 °C ± 3 °C for 100 000 cycles.

3.2.17.7 Cold After Oil Exposure. Condition specimens according to VDA 230-225, Section 6 followed by testing at -10 °C ± 3 °C for 10 000 cycles.

3.2.18 Folded Cold Crack (GMW14126). Type A and C PRG only. Test on both Black and Light Beige material. Test shall be performed without foam lamination. For 3.2.18.1 thru 3.2.18.3, test two (2) specimens from the MD and two (2) specimens from the CMD. Where H is the drop height and G is the drop weight, make H = 50 mm and G = 500 g. Test must be performed without opening the cooling chamber or it shall be perform in a deep freezer. Evaluate the face side of specimens by flexing and slight stretching (e.g., over the finger) at the point of impact. Record all results. There shall be no cracking or crazing of the finish or skin when evaluated using 5x magnification.


3.2.18.2 After Aging. Condition specimens for 48 h ± 1 h at +40 °C ± 3 °C with 93% ± 5% relative humidity, followed by 168 h ± 1 h at 90 °C ± 3 °C. Aging process must be completed without interruption.

3.2.18.3 After Oil Exposure. Condition specimens according to VDA 230-225, Section 6 prior to testing.

3.2.19 Supported Flat Cold Crack (GMW14127, Part A). Type A, B, C and D PRG only. Test on Black material. For 3.2.19.1 and 3.2.19.2, test two (2) specimens impacted with 4 J over foam. Evaluate the face side of specimens by flexing at the point of impact. Record all results. There shall be no cracking or crazing of the finish or skin when evaluated without magnification.



3.2.20 Unsupported Flat Cold Crack (GMW14127, Part B). Type E, F and G PRG only. Test on Black material. For 3.2.20.1 and 3.2.20.2, test two (2) specimens impacted with 1.5 J over fiber board. Evaluate the face side of specimens by flexing at the point of impact. Record all results. There shall be no cracking or crazing of the finish or skin when evaluated without magnification.



3.2.21 Abrasion Resistance (GMW3208). All PRG Types. Test on Black material. Test three (3) specimens using a CS-10 Wheel. For Type A PRG run using 1000 g weight for 500 cycles. For all other PRG Types run using 500 g weight for 500 cycles. Prior to evaluation, use cotton cloth per ISO 105-A01 or cheesecloth moistened with distilled water, to clean the surface of the abraded specimen. Allow to air dry. Record the observed results. Requirement is a minimum rating of 8 when viewed at a 45 degree angle using illuminant D65. There shall be no wear-through of the coating or any objectionable changes in gloss, color or grain.

3.2.22 Scuffing and Marring (GMW14130). All PRG Types. Test on Black material. Test three (3) specimens and record the results. Slight marring and no scuffing are acceptable.

3.2.23 Linear Abrasion (GMW14125). Type A, C and D PRG. Test on both Black and Light Beige material. Test three (3) specimens from the MD and three (3) specimens from the CMD and record the results for each direction.




Type A: GMW14125 E X4 (2.5 N) for 250 Cycles.

Type C: GMW14125 E X3 (1 N) for 250 Cycles.

Type D: GMW14125 E X4 (2.5 N) for 1000 Cycles.

There shall be continuous coating remaining on the base material and the base material shall not be visible through the coating at any point.

3.2.24 Environmental Exposure Resistance (GMW14124). All PRG Types. Test on both Black and Light Beige material. For 3.2.24.1 thru 3.2.24.4, test one (1) specimen at each condition. The specimen may be lightly cleaned with cotton rubbing cloth and water and reevaluated if desired. Record all results. Specimens shall be visually evaluated for objectionable signs of degradation. There shall be no cracking, chalking, tackiness, blotchiness, loss of grain, change of gloss, wrinkling, blistering, loss of coating adhesion or other undesirable effects. Slight yellowing can be accepted by the responsible materials engineer and shall be documented as color related.

3.2.24.1 Humidity. Cycle Q.

3.2.24.2 Environmental Aging. Perform Cycle S for a total of 2 cycles.

3.2.24.3 High Heat Aging 100 °C. Type A, C and G PRG only. Age the specimen at 100 °C for 336 h. Evaluate the specimen after it has reached room temperature.

3.2.24.4 High Heat Aging 120 °C. Type B, D, E and F PRG only. Age the specimen at 120 °C for 168 h. Evaluate the specimen after it has reached room temperature.

3.2.25 Blocking (GMW14132). All PRG Types. Test on Black material. For 3.2.25.1 thru 3.2.25.3, test three (3) specimens at each condition using a 3600 g mass. Record all results. There shall be no removal of topcoat, tackiness, blistering or loss of grain.


3.2.25.2 After Humidity. Test specimens after 24 h preconditioning at 38 °C ± 2 °C and 95% RH ± 3% RH within 10 minutes of removal from the humidity.

3.2.25.3 After High Temperature. Test specimens after 24 h preconditioning at 100 °C ± 2 °C.

3.2.26 Color Migration (ISO 15701). All PRG Types. Test on Black material. Test one (1) specimen and record the results. Minimum rating is 4 using ISO 105-A03 Grey Scale. There shall be no permanent tackiness, or softening of the coating.

3.2.27 Perspiration Resistance (GMW14296). Required for Type D PRG, all other Types run for information only. Test on Black material. For 3.2.27.1 and 3.2.27.2, test one (1) specimen at each condition. After completing the perspiration procedure, run a scuff and mar test (GMW14130) over the chemically treated area in a single line for three (3) strokes and record the results. The coating shall not blister, swell, soften or peel.


3.2.27.2 After Artificial Weathering. Test specimen after exposure to the artificial weathering procedure in 3.2.34.

3.2.28 Sunscreen and Insect Repellent Resistance (GMW14445). Required for Type D PRG, all other Types run for information only. Test on Black material. For 3.2.28.1 and 3.2.28.2, test one (1) specimen at each condition. After completing the sunscreen and insect repellent procedure, run a scuff and mar test (GMW14130) over the chemically treated area in a single line for three (3) strokes and record the results. The coating must not blister, swell, soften or peel.


3.2.28.2 After Artificial Weathering. Test specimen after exposure to the artificial weathering procedure in 3.2.34.

3.2.29 Resistance to Rubbing (ISO 11640). Type D PRG only. Test on Black material. For Wet and Dry preparations, test three (3) specimens at each condition. For all other preparations test one (1) specimen. For all evaluations use white felt. Upon completion of the test, use white fabric to ISO 105-A01 or cheesecloth moistened with water to clean the surface of the abraded specimen. A rating of ≥ 4 is required when the felt pad is evaluated using the grey scale for staining per ISO 105-A03. A rating of ≥ 4 is required when the specimen is evaluated using the grey scale for color change per ISO 105-A02. There shall be no rupture of the lacquer. Loss




of gloss is acceptable, but a complete color change, or exposure of the lacquer at 10x magnification is not acceptable.


3.2.29.1.1 Dry. Test 2000 cycles.

3.2.29.1.2 Wet. Test 1000 cycles.

3.2.29.1.3 Acidic Perspiration. Test 500 cycles with acidic perspiration solution to ISO 105-E04.

3.2.29.1.4 Basic Perspiration. Test 500 cycles with basic perspiration solution to ISO 105-E04.

3.2.29.2 After Humidity Exposure. Test following exposure to GMW14124, Cycle Q at 75 °C.

3.2.29.2.1 Dry. Test 2000 cycles.

3.2.29.2.2 Wet. Test 1000 cycles.

3.2.29.2.3 Acidic Perspiration. Test 500 cycles with acidic perspiration solution to ISO 105-E04.

3.2.29.2.4 Basic Perspiration. Test 500 cycles with basic perspiration solution to ISO 105-E04.

3.2.29.3 After Chemical Resistance. Test following exposure to GMW14296/GMW14445.

3.2.29.3.1 Perspiration Resistance. Test 500 cycles dry.

3.2.29.3.2 Artificial Weathering and Perspiration Resistance. Test 500 cycles dry.

3.2.29.3.3 Sunscreen and Insect Repellent Resistance. Test 500 cycles dry.

3.2.29.3.4 Artificial Weathering, Sunscreen and Insect Repellent Resistance. Test 500 cycles dry.

Note: If material is a composite (as defined in the test procedure) or is to be used in composite, the composite must meet this requirement. The influence of the migration effect through the seam under the surface of the material has to be fulfilled.

3.2.30 Soil and Cleaner Resistance (GMW3402/GMW15377). All PRG Types.

3.2.30.1 Procedure A. Test on Light Beige material. Test soiling agents Code A, B, C, D, F, G, H, I and J according to GMW3402. Apply soiling agent. Allow soiling agent to set for 30 minutes at standard conditions; then clean soiling agent using Cleaner 0 within 20 minutes. If soil does not remove, immediately use Cleaner 2. The requirement for soiling agents Code A thru J is ≥ 8 for each tested specimen. No ring formation or haptic change is allowed. For soiling agent Code M test according to GMW15377. Rate using the ISO 105-A03 Grey Scale on both the soiled and cleaned halves of the specimen. For Level 1 Cleanability the requirement is 4-5 on soiled side, 5 on clean side. For Level 2 Cleanability the requirement is 3-4 on soiled side, 4-5 on clean side. For Level 3 Cleanability the requirement is 2-3 on soiled side, 3-4 on clean side. Refer to the appropriate Construction Specification Data Sheet for the specific Construction Code based Cleanability Level.

3.2.30.2 Procedure B. Test on Black material. Use cleaning agents 0 to 5. Evaluate the specimen for color change using Grey Scale per ISO 105-A02. Evaluate the staining of the crocking cloth using Grey Scale per ISO 105-A03. A rating of ≥ 4 for both evaluations is required. After testing, if soap and water can be used to remove any rings, stains, etc., the specimen shall be considered satisfactory.

3.2.31 Interior Emissions (GMW16853). All PRG Types. Test on both Black and Light Beige. Applicable for GMW14444, Code E parts only. For required tests, procedure and limits see Table "Overview of Test Procedures required for the Individual Materials and Part Approvals" and Table "Emission Requirements for Interior Material/Parts/Assembly List" according to GMW16853. See Notes 1 thru 3, following 3.2.31.5, for additional information.

3.2.31.1 Odor (GMW3205). Record the results for wet and dry conditions.

3.2.31.2 Fogging (GMW3235). Using Method B (Gravimetric). For Type A, C and G PRG test using a 90 °C bath. For Type B, D, E and F PRG test using a 110 °C bath.

3.2.31.3 Volatile Organic Compound(s) (VOC)/Semi-Volatile Organic Compound(s) (SVOC) (GMW15634). Record total amounts of VOCs and SVOCs in milligram/kilogram and attach a report listing all chemicals detected.

3.2.31.4 Carbonyls (GMW15635). Record the amounts of each chemical listed along with the sum of C2 to C6 Carbonyls.

3.2.31.5 Effect of Amines (GMW14131). Record the results.

Note 1: Covered by Emission Testing are the following vehicle interior air quality requirements:




Odor according to GMW3205.

Fogging according to GMW3235.

VOC/SVOC according to GMW15634.

Amine compatibility according to GMW14131 and for large-size components a test according to ISO 12219-2 and ISO 12219-4.

Note 2: Certification may be accomplished at part or material level. Parts that meet the definition of a composite shall be certified at the composite level (shall be agreed with the responsible material release engineer).

Note 3: Composites shall meet the least stringent requirement of the materials the composite is made of.

3.2.32 Amine Resistance (VDA 230-223). Type A, B, C and D PRG only. Test on both Black and Light Beige. Test three (3) specimens and record the results. There shall be no change in color when evaluated visually.

3.2.33 Colorfastness to Burnt Gas (ISO 105-G02). All PRG Types. Test on both Black and Light Beige. Test three (3) specimens using Propane gas at 60 °C for 168 h. Record the results. A rating of ≥ 4 per ISO 105-A02 Grey Scale with no more than a slight hue change is acceptable.

3.2.34 Colorfastness to Artificial Light, Xenon Arc Method. All PRG Types. Test on both Black and Light Beige. Test using either the ISO 105-B06, Condition 5 method in 3.2.34.1 OR the GMW14162 method in 3.2.34.2. Evaluate specimens as specified in GMW6992 and record the results. A rating of ≥ 4 per ISO 105-A02 Grey Scale with no more than a slight hue change is acceptable. There shall be no objectionable tackiness, blotchiness, loss of grain, change in gloss, wrinkling or other undesirable effects.

Note: Xenon testing shall be performed and reported for limited approval status while Nature Weathering testing is ongoing. Natural weathering is the requirement for full approval.

3.2.34.1 Xenon Method (ISO 105-B06, Condition 5). See Table 1 for Test Level by Application Type.

Table 1: Xenon Method ISO 105-B06, Condition 5

Application Type Test Level

G 263 kJ/m2

C 601 kJ/m2

A, B, D, E, F 1240 kJ/m2

3.2.34.2 Xenon Method (GMW14162). See Table 2 for Test Level by Application Type.

Table 2: Xenon Method GMW14162

Application Type Test Cycle and Temperature Test Level

A, C, G Cycle B; 100 °C 28 MJ/m2

B, D, E, F Cycle C; 115 °C 28 MJ/m2

3.2.35 Natural Weathering Exposure Testing - Arizona (GMW3417). All PRG Types. Test on both Black and Light Beige. See Table 3 for Test Level by Application Type. Evaluate specimens as specified in GMW6992. The specimen may be lightly cleaned with cotton rubbing cloth and water and reevaluated if desired. Record the results. A rating of ≥ 4 per ISO 105-A02 Grey Scale with no more than a slight hue change is acceptable. There shall be no objectionable tackiness, blotchiness, loss of grain, change in gloss, wrinkling or other undesirable effects. Specimens shall not whiten when folded.

Note: GM is responsible for conducting the natural weathering testing. Suppliers shall submit, per ISO 216, five (5) A6 size specimens of material to the responsible engineer in the developing region. The specimens must be from the same lot of material that is tested for construction, and shall be submitted along with the construction properties test submission package. The specimens shall be labeled "For Natural Weathering Test" and include the supplier's name, piece number, date and GM Finish Symbol and color number on each specimen. GM will




perform the specified natural weathering test on these specimens and advise the supplier of compliance or lack of compliance to the requirement.

Table 3: Natural Weathering Exposure Requirements (Solar Glass)

Application Type Temperature Level For Information

A, B, D, E, F 102 °C 105 TNR kL 50 TNR kL

C 93 °C 50 TNR kL 25 TNR kL

G 85 °C 10 TNR kL -

Note: TNR = Temperature Normalized Radiation

3.3 Color Requirements. These requirements describe the testing that shall be completed for each PRG color once the initial construction has been approval. Color testing must be completed using the same lot of material that was granted visual approval unless the visual approval was blanketed from an already approved color. All colors and grains shall meet the initial construction requirements even though these properties are not all retested for each color/grain combination. It is the supplier's responsibility to ensure that a change in color or grain does not affect any of the construction requirements. Record results of 3.3.1 thru 3.3.10 on the Plastic Roll Good Color Certification Data Form, see Appendix B, Data Sheet B2 for an example.

3.3.1 Weight (GMW3182). All PRG Types. Test one (1) lot of material in each color. See 3.2.1 for requirements.

3.3.2 Thickness (ISO 2589). All PRG Types. Test one (1) lot of material in each color. See 3.2.2 for requirements.

3.3.3 Flammability (GMW3232). All PRG Types. Test each color. See 3.2.14 for requirements. After completion of the flammability test, record results on the Plastic Roll Good Color Certification Data Form and attach the Flammability Test Report from GMW3232, Appendix B.


3.3.3.2 After Aging. The test cycle shall commence with 48 h ± 1 h at 40 °C ± 3 °C and 93% RH ± 5% RH, followed by 168 h ± 1 h at +90 °C ± 3 °C. Complete the test cycle without interruption. Repeat 3.3.3.1 conditioning before testing flammability.

3.3.4 Abrasion Resistance (GMW3208). All PRG Types. Test each color. See 3.2.21 for requirements.

3.3.5 Environmental Exposure Resistance (GMW14124). All PRG Types. Test each color. See 3.2.24 for requirements.

3.3.5.1 Humidity. Cycle Q.

3.3.5.2 Environmental Aging. Perform Cycle S for a total of two (2) cycles.

3.3.5.3 High Heat Aging 100 °C. Type A, C and G PRG only. Age the specimen at 100 °C for 336 h. Evaluate the specimen after it has reached room temperature.

3.3.5.4 High Heat Aging 120 °C. Type B, D, E and F PRG only. Age the specimen at 120 °C for 168 h. Evaluate the specimen after it has reached room temperature.

3.3.6 Color Crock (ISO 105-X12). All PRG Types. Test each color. For 3.3.7.1 and 3.3.7.2, test one (1) wet specimen and one (1) dry specimen at each condition. Record the results. The crocking cloth shall have a minimum rating of 4 wet and 4 dry per ISO 105-A03 Grey Scale.


3.3.6.2 After Aging. Expose specimens to 70 °C for 7 days prior to testing.

3.3.7 Soil and Cleaner Resistance (GMW3402/GMW15377). All PRG Types. Test each color. See 3.2.30 for requirements.

3.3.7.1 Procedure A. Test soiling agents Code A, B, C, D, F, G, H, I, J and M.

3.3.7.2 Procedure B. Use cleaning agents 0 to 5.




3.3.8 Resistance to Sulfur Ion Staining (GMW14864). All PRG Types. Test each color. Expose one (1) specimen each to Hydrogen Sulfide (H2S) and Sulfur Dioxide (SO2). Record the results. There shall be no yellowing or other objectionable color change after exposure.

3.3.9 Colorfastness to Artificial Light, Xenon Arc Method. All PRG Types. Test each color. See 3.2.34 for requirements. Test using either the ISO 105-B06, Condition 5 method in 3.3.9.1 OR the GMW14162 method in 3.3.9.2.

3.3.9.1 Xenon Method (ISO 105-B06, Condition 5). See Table 1 for Test Level by Application Type.

3.3.9.2 Xenon Method (GMW14162). See Table 2 for Test Level by Application Type.

3.3.10 Natural Weathering Exposure Testing - Arizona (GMW3417). All PRG Types. Test each color. See 3.2.35 for requirements.

3.4 Laminate Requirements. These requirements describe the testing that shall be completed for each PRG laminate once the initial construction and foam have been approved. For tests requiring multiple lots of data, limited approval will be given based on testing the first lot. Full approval will be given and construction tolerances will be set once five (5) additional lots have been tested and meet the requirements. Testing may be done using lots of different colors. All colors and grains shall meet the laminate requirements even though these properties are not retested for each color/grain combination. It is the supplier’s responsibility to ensure that a change in color or grain does not affect any of the construction requirements. PRG face goods must be approved to GMW14122. The PUR foam used in any laminate construction must meet the requirements of GMW15058. The supplier shall provide documentation of foam approval. Record results of 3.4.1 thru 3.4.8 on the Plastic Roll Good Laminate Certification Data Form, see Appendix B, Data Sheet B3 for an example. All required information shall be supplied on the appropriate Laminate Construction Specification Data Sheet (see Appendix A, Data Sheet A3) and submitted with each PRG for engineering lamination approval.

3.4.1 Weight (GMW3182). Testing is required to be completed on six (6) lots of material. See 3.2.1 for requirements. Refer to the appropriate Laminate Specification Data Sheet for the specific Construction Code based requirement.

3.4.2 Thickness (ISO 5084). Testing is required to be completed on six (6) lots of material. Test three (3) specimens and record the average in millimeters to the nearest tenth of a millimeter. For foam laminates use a 4 N load and a 200 mm ± 0.8 mm diameter presser foot to achieve a pressure of 0.127 kPa. All readings should be taken after the presser foot has been in contact with the material for at least 5 s. Refer to the appropriate Laminate Specification Data Sheet for the specific Construction Code based requirement.

3.4.3 Tensile Force at Break (GMW3010). Testing is required to be completed on six (6) lots of material. See 3.2.4 for requirements. Refer to the appropriate Laminate Specification Data Sheet for the specific Construction Code based requirement.

3.4.4 Stretch and Set (GMW3211). Testing is required to be completed on six (6) lots of material. See 3.2.10 for requirements. Refer to the appropriate Laminate Specification Data Sheet for the specific Construction Code based requirement.

3.4.5 Flexibility (GMW3390). Testing is required to be completed on six (6) lots of material. See 3.2.11 for requirements. Refer to the appropriate Laminate Specification Data Sheet for the specific Construction Code based requirement.

3.4.6 Flammability (GMW3232). See 3.2.14 for requirements. After completion of the flammability test, record results on the Plastic Roll Good Laminate Certification Data Form and attach the Flammability Test Report from GMW3232, Appendix B.


3.4.6.2 After Aging. The test cycle shall commence with 48 h ± 1 h at 40 °C ± 3 °C and 93% RH ± 5% RH, followed by 168 h ± 1 h at +90 °C ± 3 °C. Complete the test cycle without interruption. Repeat 3.4.6.1 conditioning before testing flammability.

3.4.7 Colorfastness to Burnt Gas (ISO 105-G02). See 3.2.33 for requirements.

3.4.8 Bond Strength (GMW3220). For 3.4.8.1 thru 3.4.8.3, test three (3) specimens from the MD and three (3) specimens from the CMD. Record the average. The minimum bond strength must be maintained between the PRG and the foam of bilaminates as well as the foam and scrim of trilaminates. Bonded-on films used in place of scrims are exempt from meeting the requirements of scrim to foam. Low weight scrims used as assembly




aids, generally < 30 g/m2 are also exempt from meeting the bond requirements of scrim to foam, as received and after environmental cycling. Scrims used to control physical properties of the PRG are not exempt and must meet the requirement, as received and after environmental cycling.

Note: If the foam tears, report the maximum force before the break occurs (in Newtons (N)), separately from other readings.

3.4.8.1 As Received. Minimum requirement is 6 N/5 cm between PRG and Foam and 4 N/5 cm between Foam and Scrim.

3.4.8.2 After Hydrolytic Stability Cycle Q or Cycle T (GMW14124). Minimum requirement is 3 N/5 cm. The specimens shall show no signs of degradation from hydrolysis.

3.4.8.3 After Automotive Environmental Cycle S (GMW14124). Minimum requirement is 3 N/5 cm.

4 Manufacturing Process

4.1 Manufacturer's Identification. The material shall be marked in accordance with packaging specification as furnished by the packaging department or purchasing department. The marking compound must be of such composition so as to not transfer to the face of the material when rolled, or migrate to the face of material when handled or cleaned. It shall not interfere with processing.

4.2 Part Performance (GMW14444). All PRG covered by this specification are subject to part performance testing through part validation.

5 Rules and Regulations

5.1 Legal Regulations. All materials must satisfy applicable laws, rules, regulations and recommendations valid in the country of usage.

5.2 Language. In the event of conflict between the English and domestic language, the English language shall take precedence.

5.3 Inspection and Rejection. Samples of components or materials released to a GM material specification shall be tested for conformity with the requirements of this material specification and approved by the responsible Engineering department prior to commencement of delivery of bulk supplies.

A new approval must be received for any changes, e.g., properties, manufacturing process, location of manufacture, etc. If not otherwise agreed, all testing and documentation normally required for initial release must be completed.

It is the responsibility of the supplier to inform the customer in a timely manner, without solicitation, and to include documentation of all modifications of materials and/or processes and to apply for a new release.

5.4 Material Safety Data Sheets/Safety Data Sheets (MSDS/SDS). For new product submissions, or when a change in chemical composition of an existing product has occurred, a complete copy of the Material Safety Data Sheet/Safety Data Sheet must be submitted in compliance with the Globally Harmonized System of Classification and Labeling of Chemicals (GHS) requirements or other country-specific MSDS/SDS requirements.

5.5 All materials supplied to this standard must comply with the requirements of the International Material Data System (IMDS) and GMW3059, Restricted and Reportable Substances.

6 Approved Sources

Materials supplied to this specification must be approved by General Motors.

A list of approved materials can be found in the GM Global Appearance Database. This GM Material File is provided to third parties to reduce redundant testing of materials. If approved material already listed is used, the part supplier can use GM Material File reference for Production Part Approval Process (PPAP) material approval. If the decision is made to use a not yet approved material, contact GM Interior Materials Engineer for details on the approval process. The material approval process must be completed prior to PPAP start date of the part supplied to General Motors.




7 Notes

7.1 Glossary.

BStat: Maximum Statistical Burn Rate

Illuminant D65: A commonly used standard illuminant defined by the International Commission on Illumination (CIE).

7.2 Acronyms, Abbreviations, and Symbols.

CIE International Commission on Illumination

CMD Cross Machine Direction

GHS Globally Harmonized System of Classification and Labeling of Chemicals

H2S Hydrogen Sulfide

IMDS International Material Data System

IP Instrument Panel

MD Machine Direction

MSDS Material Safety Data Sheet

PPAP Production Part Approval Process

PRG Plastic Roll Goods

PUR Polyurethane

PVC Polyvinyl Chloride

RH Relative Humidity

SDS Safety Data Sheet

SO2 Sulfur Dioxide

SVOC Semi-Volatile Organic Compound(s)

TNR Temperature Normalized Radiation

TPO Thermoplastic Olefin

UV Ultraviolet

VDA Verband Der Automobilindustrie (Association of the Automotive Industry)

VOC Volatile Organic Compound(s)

8 Coding System This standard shall be referenced in other documents, drawings, etc., as follows:

Material per GMW14122, Type X. See 1.3 for Type selection.

9 Release and Revisions This standard was originated in May 2005. It was first approved by the Global Textile Group in October 2005. It was first published in October 2005.

Issue Publication Date Description (Organization)

1 OCT 2005 Initial publication.

2 SEP 2009 Revised 2.1, 2.2, 3, 5.1, 5.2, 6, 7.2. Added 2.3. (Materials)

3 SEP 2010 Revised 2.1, 2.2, 3, 5.1, 5.2, 6, 7.2. Added 2.3. (Global Textile Group)

4 DEC 2015 Revised to current template. Revised test order and general wording. Added Application Types and testing in sections 3.2.3, 3.2.5, 3.2.6, 3.2.7, 3.2.16, 3.2.23, 3.2.29, 3.2.31, 3.2.32, 3.2.33, 3.3.1, 3.3.2, 3.3.4, 3.3.7, 3.4.1, 3.4.2, 3.4.3, 3.4.5, and 3.4.7. Release Issue 3 undocumented changes include revisions to Sections 1, 2.1, 3.1.1, 3.2, 3.2.4, 3.2.11, 3.2.19.1, 3.2.20.3, 3.2.25, 3.4.2.1 and Section 9. (Materials - Trim Materials/Textiles/Leather/Foam Global Subsystem Leadership Team)




Appendix A

Data Sheet A1: Example of Supported Plastic Roll Good Construction Specification




Data Sheet A2: Example of Unsupported Plastic Roll Good Construction Specification




Data Sheet A3: Example of Laminated Plastic Roll Good Construction Specification




Appendix B

Data Sheet B1: Example of Plastic Roll Good Construction Certification Data Form (Part 1 of 7)




























Data Sheet B2: Example of Plastic Roll Good Color Certification Form (Part 1 of 2)




Data Sheet B2: Example of Plastic Roll Good Color Certification Form (Part 2 of 2)




Data Sheet B3: Example of Plastic Roll Good Laminate Certification Data Form (Part 1 of 2)




Data Sheet B3: Example of Plastic Roll Good Laminate Certification Data Form (Part 2 of 2)

Documents

Template For ENG STDS WORLDWIDE ENGINEERING Material … · 2019. 7. 31. · Template For ENG STDS WORLDWIDE ENGINEERING STANDARDS Material Specification GMW14122 Plastic Roll Goods