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1 Arceo Engineering, 12 sept. 2016
ArenNano Black Stainless
black sol gel on Stainless Steel
2 Arceo Engineering, 12 sept. 2016
ArenNano Black Stainless
Metal
Primer
Top coat
Transparent
protection layer
Metal
Top coat + protection
Context of the NANOSOL project
Protection of organic layers • Coating for home appliances
• Anti finger print coating
Functional coating • Performance comparison
with conventional coatings
3 Arceo Engineering, 12 sept. 2016
ArenNano Black Stainless
Coating based on the Nanoxid product range: application by
spray or roll coating
Colloïdal solution – SiO2
liquid film application drying
Black sol gel = Nanoxid (transparent) + carbon particles
4 Arceo Engineering, 12 sept. 2016
ArenNano Black Stainless
1 µm 5 µm
Application on brushed stainless steel –
trial on Arceo Engineering roll coating line
Coating thickness Aspect (color and gloss)
The « metallic grinded look » is kept alive
The aesthetics depend on the layer thickness : black bronze
Gloss compared to grinding direction :
Gloss parallel to grinding //: 40
Gloss perpendicular to grinding : 12
5 Arceo Engineering, 12 sept. 2016
ArenNano Black Stainless
Mechanical properties
Qualitative tests
• Adherence on flat surface
and crossed surface :
100% adherence
Standard tests
• Impact resistance: 18 J
• T-bend
Excellent adherence on the
substrate
6 Arceo Engineering, 12 sept. 2016
ArenNano Black Stainless
Mechanical properties
Test Erichsen: up to 6 mm Test Marciniak 13% deformation No cracks, no delamination
No color change on deformed zones
Ability for deepdrawing
7 Arceo Engineering, 12 sept. 2016
ArenNano Black Stainless
Mechanical Properties : hardness
Indentation: measurement of hardness and elasticity module
Hardness calculation:
For micrometric coatings control of the indentation depth at nanometric scale
Nanoindentation: load ~100 mN, indentation depth ~ 1-2 µm
Coating Hardness
(Gpa)
Young Module
(Gpa)
Anti finger print varnish 0,2 3-5
Black sol gel 0,2 4
304 steel : H= 3-5 GPa
8 Arceo Engineering, 12 sept. 2016
ArenNano Black Stainless
Mechanical characteristics : tribologic properties
Measurement of the friction coefficient tribometer pawn-disc
Low friction coefficient: µ ~0,3
Good resistance to wear
9 Arceo Engineering, 12 sept. 2016
ArenNano Black Stainless
Resistance to friction
weight (0,25 to 1 kg)
Observation quotation
No scratches 0
Low density of scratches 1
Medium density of scratches 2-3
High density of scratches 4
Completely scratched 5
10 Arceo Engineering, 12 sept. 2016
ArenNano Black Stainless
Référence Référence
10 AR //
Référence
10 AR
+ 10 * back and forth with
soft cloth
scratches emanate from the scratching device
soft cloth allows easy cleaning of the scratches
11 Arceo Engineering, 12 sept. 2016
ArenNano Black Stainless
Corrosion resistance
QCT > 4000 h (in progress)
Salt Spray Test > 2000 h (in progress)
QUVa + humidity > 4000 h (in progress)
12 Arceo Engineering, 12 sept. 2016
ArenNano Black Stainless
Chemicals and Food resistance
Food stuff 24h @ 23°C
Milk
Butter
Lemon
Cola
Chemicals 24h @ 23°C
Ethanol
Acetone
Acetic acid
Food stuff 2h @ 23°C
Ketchup
Mustard
Tomato sauce
Chemicals 2h @ 23°C
CIF
detergent
NaOH
Food stuff 1h @ 70°C
Tea
Coffee
Olive oil
Salt water
Temperature resistance
1h @ 170°C : OK
1h in boiling water : OK
Certificate of compliance Safety of Toys EN71-3
Certificate of non migration as per EN-1186 (migration
0004-S)
13 Arceo Engineering, 12 sept. 2016
ArenNano Black Stainless
Conclusions
The ArenNano Black Stainless coating solution shows :
a pleasant aesthetic finish respecting the grinded metallic
appearance
Resistance to wear and friction
Bending and deepdrawing (13% Marciniak) abilities
Resistance to food stuff and chemicals
Typical applications are :
Household goods, home appliances, kitchen decoration,
indoor architecture
Effective outdoor corrosion tests allow as well outdoor
applications (tests ongoing).
Arceo Engineering
Ivoz-Ramet Belgium
www.arceo-eng.com
