Method for low bake repair of composite color-plus-clear...

Details Method for low bake repair of composite color-plus-clear... Method for low bake repair of composite color-plus-clear...

C - Chemistry, Metallurgy

09

D

C09D 175/00 (2006.01) B05D 5/00 (2006.01) C09D 5/08 (2006.01) C09D 133/06 (2006.01) C09D 183/08 (2006.01) C09D 201/00 (2006.01) C09D 201/02 (2006.01)

Patent

CA 2269249

The invention provides a method for providing a low bake repair to a cured coating, especially a composite coating and low bake repair compositions for use therein. The method of the invention involves the provision of a cured coated surface and the application of a low bake repair coating to at least a portion of the cured coated surface. The low bake repair coating of the invention has (A) a film forming component comprising (a) a first component comprising a compound having appended thereto at least one carbamate or urea functional group, or a group convertible to a carbamate or urea group, and (b) a second component comprising a compound reactive with said carbamate or urea groups on component (a), and (B) a catalyst comprising a compound selected from the group consisting of A1 (ClO4)2, Zr(ClO4)2, and Al(NO3)2, The low bake repair coating is cured at a temperature of less than 200°F for a time sufficient to cure the low bake repair coating.

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