1255 Universal Urethane Accelerated Reducer was designed to reduce the cure rate of urethane paints, primers, and clearcoats conditions. when used properly 1255, will dramatically shorten sanding, buffing and delivery times in cold weather  also will usually speed the tape time to approximately 2-3 hours at 75ºF (24ºC). Do not use for overall base colors, epoxy primers, metallic paint, or in high temperature or high humidity conditions.