Quote:
Originally Posted by tsnow678
I would sand it down smooth maybe with 220 grit to knock the high spots down. I would do this so that it will not bleed through the high build when you block everything. I wouldn't go much finer than 220 for good adhesion for the high build. I used to have an orange peel problem with the urethane high build till I thin it down some. Once I got it thinned it sprayed perfect. When it comes out of the gun smooth it sure does take alot of the work out of sanding. Did you use any kind of etching primer before the epoxy went on? Does the epoxy primer have an etching characteristic? Bare metal really needs to be covered in an acid wash or etching primer for the best adhesion.
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Everything I read and have been told, says that epoxy is designed to shoot on bare metal.. Hope I haven't missed something...