Coating compositions and method for forming a self-healing corro

Details Coating compositions and method for forming a self-healing corro Coating compositions and method for forming a self-healing corro

1989-08-07

1991-01-01

Bell, Mark L.

Stock material or miscellaneous articles

Composite

Of silicon containing

428446, 428447, 4273855, 427387, 4273884, 106244, 1063871, 106 1415, B32B 906

Patent

active

049817574

ABSTRACT:
Self-healing coatings are formed by first phosphating or nitriding ferrous parts, then coating with an emulsion of e.g. polysiloxane, oil, sorbitan derivative and sodium sulfonate, butyl cellosolve, oleic acid. Preferred phosphating is to a thickness of 2,000-3,000 mg Zn phosphate/square foot. This coating passes 240-plus hours in 5% salt spray (ASTM B-117) and resists wash off with car wash soap.

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