jp1gt Posted October 13, 2022 Share Posted October 13, 2022 I needed to change the color of the frame to black and was sandblasting to scuff the powdercoat for paint. As you can see a lot of powdercoat came off with slight amount of rust underneath. Ever see this problem? I am painting with por 15. The stuff is amazing sticks like glue--- 2 Link to comment Share on other sites More sharing options...
pmhowe Posted October 15, 2022 Share Posted October 15, 2022 My first guess was some slight residual grease. However, the pattern looks more like rust scale. I'm thinking that a small mount of rust grew with time. Either way, it says to me that it is not quite clean enough for refinishing. Phil Link to comment Share on other sites More sharing options...
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