Protective coating material

Details Protective coating material Protective coating material

1973-09-19

1976-09-07

Czaja, Donald E.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

106302, 260 334R, 260 336R, 260 37M, 260 38, C08K 308, C08K 330, C08K 507

Patent

active

039793516

ABSTRACT:
A fastener such as a rivet, bolt or screw is provided with a protective coating for protection against corrosion and deterioration, formed by application of a mixture of a powdered metallic substance such as powdered aluminum or molybdenum disulfide with a phenol-formaldehyde resin in a volatile carrier from the group consisting of lower alkyl alcohols, methyl ethyl ketone and petroleum distillate, such as toluene or ethyl alcohol, or both, together with strontium chromate and zinc chromate. Either teflon or fatty amido diamine is added to the foregoing mixture. The thickness of the coating after drying can be made very thin and controlled to a high degree and possesses sufficient toughness and lubricity so that it is not damaged even when used on interference type fasteners.

REFERENCES:
patent: 2718506 (1955-09-01), Elleman
patent: 2825706 (1958-03-01), Sordus
patent: 3094435 (1963-06-01), Schuster et al.
patent: 3342667 (1967-09-01), Berlinghof
patent: 3455864 (1969-07-01), Dodson
patent: 3498939 (1970-03-01), Schier et al.
patent: 3748292 (1973-07-01), Stander
patent: 3766130 (1973-10-01), Johnson

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