Crown is approved by every major US automaker for performance and decorative topcoat systems. We also support appliance and machinery manufacturers, aerospace and the military with finishing for protection, wear and appearance

??Electrocoating ??Electrocoat

priming and powder topcoat

0 E-coat prime, base and clear coat finishing

??Textured, anti-chip and mapresistant coatings

??Liquid and powder; low and high gloss

For ferrous and nonferrous materials, outsized parts and complex shapes, plastics finishing and specialty assembly, your best source is Cfowrt!

2111 Walter Reuther Drive Warren, Michigan 48091

Phone: 81 O/575-9800 Fax: 81 O/575-9858

Cathodic Electrodeposition Coating U.S. Patent 5362,607. Jan. 17, 1995 R.J. Sikora et al., assignors to E.I. Du Pont de Nemours and Co., Wilmington, Del.

An improved cathodic electrocoating composition comprising an aqueous canier having dispersed therein a film forming binder comprising an epoxy-amine adduct of a polyglycidyl ether of a polyhydric phenol reacted with an amine selected from the group consisting of a primary amine, secondary amine, ketimine and any mix- ture thereof and containing a blocked poly- isocy anate curing agent; wherein the im- prove ment comprises the addition of zinc

hy droxyphosphite pigment to form an electro coating composition having im- proved throwing power.

Fluorocarbon Base Coat U.S. Patent 5383,264. Jan. 24, 1995 C. Gardaz and J-P Ward, assignors to SE6 S.A., Selongey, France

A process for the application of a fluo- rocarbonated resin base coating to a flat metallic support, which comprises apply- ing by seriography an aqueous dispersion of polytetrafluoroethylene admixed with a thickening agent in a form of a paste as a continuous coating on a flat metallic sup port in the shape of a disk, hardening the

aqueous dispersion on the disk, and thereaf ter stamping the disk to the form of a cooking receptacle.

Phosphate Coating U.S. Patent5,363,962. Jan. 24, 1995 0. Hauffe and F: Jeworrek, assignors to Met allgesellschaff AG, Frankfurr am Main, Germany

A process of producing a phosphate coaling on a metal surface of iron or steel by a nonlayer forming phosphating process comprising contacting with an aqueous phosphating solution on the basis of mag nesium phosphate, which contains an accel erator wherein the phosphating solution contains 0.2-4 g/L magnesium, l-20 @L phosphate (calculated as P,O,)and, as accel erator, at least one compound selected from the group consisting of hydrogen peroxide, perphosphate, and percarbonate, said solu tion being free of inorganic substances that are not precipitable with calcium hydroxide in a neutral or alkaline medium.

Hydrochloric Acid Pickling Accelerator U.S. Patent5,364,064. Jan. 24, 1995 J.C. Peterson, assignor to Crown Techndogy Inc., Indianapolis

A hydrochloric acid pickling accelerator for batch and continuous hydrochloric acid pickling baths for all types of steel, corn prising an admixture of 10-H% by weight glycol, 20-30% by weight calcium chlo ride, 3-6% by weight phosphoric acid, 32- 57% by weight water, and 0.5-2% by weight of a fluorinated surfactant.

Method for Gold Plating U.S. Patent5,364,026. Jan. 24, 1995 D.A. McLaughlin, assignor to Gold Effects Inc., Lago, F/a

A method for gold plating a metallic surface‘, the steps comprising providing a mobile electroplating apparatus having wheels to enable the apparatus to be easily moved by a user to any desired position in relation to a metallic surface to be gold plated, a DC power source having a plural- ity of voltage output receptacles, a plurality of chemical solution containers, a work- piece contact member for completing an electric circuit between the metallic surface and the DC power source, and means for sequentially applying chemical solutions in the containers on the metallic surface to be gold plated, said means including a plural- ity of hand manipulated applicators, each of the applicators con nettable by a wire lead to the DC power source through the voltage output receptacles.

METAL FINISHING . OCTOBER 1995