Method for coating metallic surfaces

Details Method for coating metallic surfaces Method for coating metallic surfaces

2005-05-17

2005-05-17

Cameron, Erma (Department: 1762)

Coating processes

Direct application of electrical, magnetic, wave, or...

Polymerization of coating utilizing direct application of...

C427S517000, C427S518000, C427S519000, C427S520000

Reexamination Certificate

active

06893687

ABSTRACT:
The invention relates to a method for coating metallic surfaces by wetting one such surface with an aqueous dispersion containing, in addition to water, at least one UV-cross-linkable, water-soluble and/or water-dispersible resin, at least one wax as a deforming additive, at least one photoinitiator and at least one corrosion inhibitor. The coating is dried and hardened after being formed on the metallic surface. The invention is characterised in that the coating that is formed is up to 10 μm thick when hard, and in that during a condensation water test according to DIN 50017 KFW carried out directly after over 240 hours, said coating shows no signs of corrosion >5% on a test surface having been deformed by a mandrel with a diameter of 3.2 mm to 38 mm during a mandrel bending test according to DIN ISO 6860 without cracking the test surface.

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