Method of obtaining nickel coated filled epoxy resin article

Details Method of obtaining nickel coated filled epoxy resin article Method of obtaining nickel coated filled epoxy resin article

H - Electricity

05

K

22/154

H05K 1/03 (2006.01) C23C 18/20 (2006.01) H05K 3/18 (2006.01) H05K 3/38 (2006.01)

Patent

CA 1086023

METHOD OF OBTAINING NICKEL COATED FILLED EPOXY RESIN ARTICLE Abstract Electroless nickel coating of epoxy resin foundry patterns and core boxes can be carried out without a palladium chloride/ stannous chloride activation of the surface, if the pattern or core box contains a high density of metal particles which act as "keying" sites, and if the metal-filled resin surface is properly prepared. The preparation steps include a very light abrading with a fine (minus 60 U.S. mesh and preferably even finer) grit and a very brief acid pickling step. The electroless-plated article has a continuous coating of nickel bonded essentially directly to the resin through the metallic "keying" sites.

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