All Purpose Reducer Thinner

All Purpose Reducer is a medium-speed blend of extra-pure thinners formulated specifically for product compatibility with every NAPCO Poly-Glass topcoat and Epoxy Primer. Getting evaporation speed right matters: too fast and the coating can skin over and blush; too slow and you risk runs and sags. This one thinner is engineered to hit that balance for consistent gloss and a reliable finish. For cold-weather jobs, NAPCO’s Fast Thinner is the recommended alternative.