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Air Dry is used to add to polyester/vinylester resins to eliminate the tackiness in the resin surface. The wax rises to the surface as the styrene is released in the air. This creates a non tacky surface that can be easily sanded or painted. Add to unwaxed polyester resin and gelcoat when you plan on sanding after cure. Waxed resin and gelcoat must be sanded before recoating.
General Safety Directions
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