Multilayered coating with powder clearcoat

porting in a horizontal direction along a transport plane by passing through a bath of the treatment liquid; contacting an underside with the treatment liquid in a treatment bath; cont a c t i n g an u p p e r side with the treatment liquid in a liquid build-up space; passing the treatment liquid through nozzles that are in the bath at a spacing of 20 to 300 mm from the transport plane; applying the treatm e n t liquid onto surfaces of the printed circuit boards or conductor films as a liquid jet from the nozzles, thereby, forming cavitation bubbles within the liquid jet, wherein the cavitation bubbles are generated by outflow of the treatment liquid, which is under high pressure and set in an eddy current movement from the nozzles, whereby the cavitation bubbles are applied onto the surfaces of the printed circuit boards or conductor films. MULTILAYERED CLEARCOAT

COATING

WITH

POWDER

U.S. Patent 6,077,608. June 20, 2000 K.A. Barkac et al., assignors to PPG Industries Ohio Inc., Cleveland

A multilayered composite film over a substrate, wherein the composite film comprises a clearcoat layer over a basecoat layer, comprising forming a

basecoat formed by dehydrating a waterborne coating without total curing; forming a clearcoat layer over the basecoat layer formed by cocuring a powder coating of a predominant amount of a functional acrylic filmforming polymer or copolymer. CHROMATE-IFREE

PROTECTIVE

COATING

U.S. Patent 6,077,885. June 20, 2000 H.E. Hager et al., assignors to The Boeing Co., Seattle, Wash.

A corrosion-inhibiting coating mixture comprising a film-forming organic polymeric component and a sufficient quantity of a chromate-free mixture of salts distributed in the polymeric component to, upon drying, produce a coating that, when coated onto aluminum or an alloy thereof, withstands a 3,000 hour salt spray without significant corrosion of the aluminum or aluminum alloys, the mixture comprising a salt selected from the group consisting of a carboxylate salt of a rare earth metal; a vanadate salt of an alkali or alkali earth metal; and a borate salt of an alkali earth metal. MULTILAYER

COATING

U.S. Patent 6,080,296. June 27, 2000 F. Lieverz et al., assignors to Herberts GmbH, Wuppertal, Germany

A process for the multilayer coating of an electrically conductive substrate comprising applying a primer coat by electrophoresis; stoving the primer coat; applying directly to the stoved primer coat at least one coating layer selected from the group consisting of a color-imparting coating layer, an effect-imparting coating layer, and a color- and effect-imparting coating layer; and overcoating the coating layer, wherein the coating layer is produced from an aqueous coating medium, which contains at least one pigment selected from the group consisting of coloring pigments, effect pigments, and coloring and effect pigments.

For 8

FREE BOOK LIST Circle 560 on Reader Information Card

- HES TM High Efficiency System -

Hocgnp Stri.p.pable Plating Mask Kitquart sharp,distinct lines.Kit

Clean, stop off with I pot and S Ibs. of Thermo-Cote N-4 strippable coating. Cools fast to giveyou perfectmask. Non-Contaminating. Peel off and remelt for reuse. Write for detaiJs and

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Circle 138 on reader card or g o t o w w w . t h r u . t o / w e b c o n n e c t June 2001

Eliminates losses from drafts created by overhead ventilation, cooling fans, open doors etc. Eliminates the need for an operator to stand over the degreaser. Freestanding when machine is removed for service. Can be field mounted to existing equipment. • Manual load and unload station• • NESHAP Compliant Design• • Accepts all currently approved solvents• • Primary and Cold Trap~ Refrigeration provided by one compressor*. • Reduces Solvent Consumption • Integral Safety Controls "Patent #5,854•851 • Patent#5,865.198 • Integral Containment Pan • Finished in attractive stainless enclosure and provided with wheels for installation ease.

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Other Metal & Chemical Lines: Brass, Bronze, Cadmium, C o p p e r , Chrome, Nickel & Zinc!

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