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Thanks for the responses. I'm a retired bodyman. In the old days I would sandblast everything and prime immediately. I didn't even Metal Prep because no mater how fast you dried it of after water wash you could see rust forming. But my little garage air compressor and suction feed blaster just will not do the job. I was hopeing to find a way to get around this but after much research I agree with MartinSR(sandblast is the only way to go). I'm going to have to get access to a pressure feed sandblaster and DIY, I don't trust anyone else to be as meticulous. Must be a reason that paint reps will not commit to putting their products over anything but "clean bare metal"
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