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Spray School Schedule

2008

Poor Adhesion of Film

 

 

CAUSE

REMEDY
A Unclean surface. Clean carefully with volatile solvent.
B Sometimes the finishing coat and primer coat are not meant to be used together. The solvent in the finishing coat lifts the primer from the surface. Even though the film will dry and have a good appearance, primary adhesion has been ruined. Make sure that the proper recommended primer and finishing coat are used together.
C Wood sanded too smooth. Especially closed grain hardwoods like maple and birch. Always finish sand closed grain hardwoods with 120 grit sandpaper before the finishing process.

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