Update: I contacted Duracoat directly, and I'm glad I did. They offer two pre-treatments: NoSand, and Adhesion Promoter. I asked if the two could/should be used together. The answer is "No." Their response:
Quote:
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After degreasing you could use 400 grit sandpaper to rough up the surface or use the NoSand. Either option will work well. Adhesion Promoter is for use only on plastics. Adhesion Promoter and NoSand should not be used together.
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Since I'm working on a 1911, which is all metal, I'll go with the NoSand.