althezenman Posted March 15, 2016 Report Share Posted March 15, 2016 I ordered some products to paint my motorcycle frame. The frame is in good shape overall with only a few very small rust spots. I am concerned about adhesion on such a clean surface.I know the RustBlast etches the metal but I confused whether the etching properties only work on rusted metal and not clean metal. So far, I have striped the factory paint and sanded with 150 grit. Should I go ahead with the KBS system from here OR could I sand up to 220/320 grit? Quote Link to comment Share on other sites More sharing options...
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