Trim and Door Silk is urethane enhanced to withstand all the kicks, bumps, and bangs of life! Stain Guard™ makes the paint tough and block resistant, and it can be applied outside at the uniquely low temperature of 5°C. No primer is required except for new, unpainted wood and metal doors. The exceptional quality and performance of Designer Series™ Trim and Door has earned the Home Owner's Lifetime Guarantee. This paint offers a higher than average coverage of 500 sq. ft. per 4L. Sheen: 25-35 when viewed at a 60° angle. Note: Pre-primed metal doors need to be re-primed for great results.