Method and composition for treating substrates and coated articl

Details Method and composition for treating substrates and coated articl Method and composition for treating substrates and coated articl

1975-05-07

1976-12-07

Newsome, John H.

Stock material or miscellaneous articles

Metal continuous phase interengaged with nonmetal continuous...

106285, 427 27, 427 33, B05D 106

Patent

active

039964108

ABSTRACT:
Non-conductive substrates are prepared for electrostatic coating by pre-treatment with a conductivity-improving composition comprising an alkali metal hydroxide (less than 5 wt. %) and a solvent system for the alkali metal hydroxide comprising a lower alkanol and a hydrocarbonaceous co-solvent. The solvent system flashes off rapidly, but electrical conductivity is not lost. Consequently, production line electrostatic coating techniques can be used, and the residual solvent system does not generally have an adverse effect upon adherence of the electrostatically-sprayed coating to the substrate.

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