Encore Coatings PMX1 1 qt POLYMATRx Paint Additive is a blend of several acrylic resins that, together, have a remarkable effect on the performance of standard acrylic/latex up to 7X more resilient to daily expansion and contraction cycles caused by the changing weather; the same cycle that destroys ordinary paint in 3-5 years! POLYMATRx gives you a “just painted” look that lasts for decades!