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Coatings for Rigid Thermoplastic Substrates

IP.com Disclosure Number: IPCOM000073440D
Original Publication Date: 1970-Dec-01
Included in the Prior Art Database: 2005-Feb-22
Document File: 1 page(s) / 11K

Publishing Venue

IBM

Related People

Blumentritt, BF: AUTHOR [+3]

Abstract

Metal and ceramic coatings may be applied to rigid thermoplastic substrates to impart to organic materials such desired properties as wear resistance or electrical or thermal conductivity using the following procedure.

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Coatings for Rigid Thermoplastic Substrates

Metal and ceramic coatings may be applied to rigid thermoplastic substrates to impart to organic materials such desired properties as wear resistance or electrical or thermal conductivity using the following procedure.

The surface to be coated is grit blasted and wiped with a cleaning solvent to remove surface contaminants. The surface is then coated with a solvent for the plastic material, which softens the plastic and forms a tacky surface. Metal powder is dusted on the tacky surface and the excess removed. The solvent is removed by drying, leaving a layer of metal powder adhered to the plastic surface. The surface is thereupon flame sprayed either with the desired metal coating or with a bonding material, such as nickel aluminide and coated with a desired ceramic material. Care must be taken during the flame spraying operation to avoid excessive heating of the substrate material.

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