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Polyurethane Masks Large Areas in ElectroplatingPolyurethane foam provides effective mask in electroplating of copper or nickel. Thin layer of Turco maskant painted on area to be masked: Layer ensures polyurethane foam removed easily after served its purpose. Component A, isocyanate, and component B, polyol, mixed together and brushed or sprayed on mask area. Mixture reacts, yielding polyurethane foam. Foam prevents deposition of nickel or copper on covered area. New method saves time, increases productivity and uses less material than older procedures.
Document ID
19840000180
Document Type
Other - NASA Tech Brief
Authors
Beasley, J. L. (Rockwell International Corp.)
Date Acquired
August 12, 2013
Publication Date
January 1, 1985
Publication Information
Publication: NASA Tech Briefs
Volume: 8
Issue: 3
ISSN: 0145-319X
Subject Category
FABRICATION TECHNOLOGY
Report/Patent Number
MFS-19825
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.