substrates wherein a noble metal-tin con- taining solution is contacted with the substrate to activate the substrate and the activated substrate contacted with a post- activator solution to increase its conductiv- ity for plating thereon comprising electro- lyzing the used post-activator solution, which comprises noble metal, copper, and tin, the tin being in an amount less than 100 ppm, to decrease the level of tin in the solution.

Vertical Dip Coater with Ultraviolet Cure U.S. Pafen15,368,899. Nov. 29, 1994 M. o%onnell LitteraJ assignor to Delco Ektronics cop

A method of automatically dip coating and then simultaneously ultraviolet curing a conformal coating on both sides of a circuit board.

Electroless Bismuth Plating Bath U.S. Pafent5,368,896. Nov. 29, 1994 A. Senda et al., assigrws to Murata M&I, Co, Lid., Japan

A method of forming an electroless

bismuth plating film, comprising the step of plating the bismuth film from an electroless bismuth plating bath comprising a trivalent salt of bismuth, a reducing agent, the reducing agent comprising a bivalent water-soluble compound of tin and a com- plexing agent.

Cathodic Epoxy Electrocoat U.S. Patent 5369,151. Nov. 29, 1994 7: Fujibayashi and H. Nagaokt, assignors to Kansai faint Co. Ltd., Hyogo, Japan

A cationic electrodeposition coating composition comprising as a main compo- nent a mixture of a cationizable resin having a primary hydroxyl group and a hardening agent.

Epoxy-Melamine Coating Composltlon U.S. Parent5,369,153. Nov. 29, 1994 I?. J. Barsofti and J. I! Johnson, assignors to E.I. Du Pant de Nemours & Co., Wilmington, Del.

A clear coat composition, which is essentially anhydride-free comprising 20- 80% by weight of reactive binder compo-

HEXMASTER High Etticlency Dry Scrubber Meets Strict Regulations for Hexavalent Chrome Mist Removal m Low maintenance m Corrosion resistant 1500 to 65,000 cfm I Retrofit existing sydems I Horizontal &vertical

configurations I Single source capability

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I 1560 INDUSTRIAL DRIVE. OWOSSO, MI 48867 517-7258184. FAX 517-725-8188

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nents and W-20% by weight of an organic liquid carrier, wherein the binder comprises 25-90% by weight of an acrylic copolymer; 5-30% by weight of a glycidyl ether or ester or cycloaliphatic epoxy compound; S-30% by weight of an alkylated melamine formaldehyde resin; lO-30% by weight of an acrylosilane polymer; and an effective amount of a curing catalyst.

Spray Gun U.S. Patent5,370,314. Dee. 6,1994

G. Gebauer and G. Zimmermann, assignors to J. Wagner GmbH, Fdedrichshafen, Germany

A spray gun for airless spraying of paints or similar media under high pressure.

Reflective Paint for Plastics U.S. Pateni5,370,733. Dec. 6, 1994 R.M G&on, assignor to JMK International Inc., Fort krth, Taxas

A method for making a flexible coating capable of at least one hundred percent elongation without failure and adapted for use on elastomeric components, compris- ing dissolving a nonresinous, room temper- ature vulcanizing sealant including a

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AMBIENT TEMPERATURE

SEALANT For Aluminum & Magnesium

Hard or Soft Anodized 2000 + hrs Salt Spray

2024 8c 7075

CHROMATE-FREE- RECYCLABLE

Alumitec Products Corp. 3820 Del Amo Blvd., Ste. 207

Torrance, CA 90503 Phone: (310) 793-9861 See us at SWFIN, Booth #223

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158 METAL FINISHING . JUNE 1995