Putty Marks or edge Shrinking
Areas treated with polyester filler may experience issues such as filler marks or edge shrinkage.

Description: Cause:
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Insufficient sanding of the filler.
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Incorrect grit size of sandpaper.
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The filler absorbs too much paint because no primer was applied before filler application.
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Excessively thick filler layer that has not properly dried before the next coating.
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Excessive shrinkage of the filler; deformation after drying.
Solution:
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Sand the filler layer sufficiently and ensure a smooth and even edge.
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Apply a primer coat.
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Use a filler that minimizes shrinkage as much as possible.


