Thinners enhance the application of paint and primer products. Thinners include effective conditioning and drying agents improving application. Virtually all solvent based epoxy paint and urethane coating products will require thinner in extreme hot or cold weather conditions. We recommend making the recommended thinner part of your commercial, industrial or garage floor paint application. Use to clean spills and tools after application. Use only where recommended for best results. Questions? Call us toll free at 1-877-568-2168 M-F 8AM-5PM Pacific Time.