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Thread: How Do You Get A Smooth Finish With Polyu
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Old 08-12-2013, 12:24 PM
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kenh3497
 
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Like Campy says... the base surface has to be smooth first. If it's not smooth anything on that surface seems to be magnified buy the following layers. I find 320 grit to be "smooth enough" to lay glass and WBPU over.

Ken
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