Composition and method for coating metal substrates

Details Composition and method for coating metal substrates Composition and method for coating metal substrates

C - Chemistry, Metallurgy

09

D

C09D 163/00 (2006.01) B02C 23/18 (2006.01) B05D 1/10 (2006.01) B05D 7/14 (2006.01) C09D 123/08 (2006.01)

Patent

CA 2094204

18 ABSTRACT A field-applied, flame sprayed coating for metal substrates is disclosed that comprises a blend of approximately equal parts by weight of a fusion bondedepoxy and an ethylene methacrylic acid (EMAA) copolymer. The coating exhibits excellent resistance to disbondment when applied to cathodically protected substrates. The coating is desirably flame sprayed onto the clean metal substrate at a temperature of about 220°F at a thickness of about 15 mils. Optionally, the subject coatings can be oversprayed with a flame sprayed-coatingof up to about 10 mils of a powdered EMAA copolymer to achieve enhanced flexibility and resistance to impact or abrasion.

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