Self etching Primer

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joefraze

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Feb 27, 2011
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Ok guys i need some help. I am soon to start painting my boat. It had previous paint on it, but i used a grinding bit for my drill. It roughed the surface up well but its not bare aluminum all over. When i spray the self etching primer will it stick to paint or only bare aluminum?
 
etching primer will stick to bare metal as well as painted ...as long as it has been sanded properly.
 

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