Protect your insulation with this durable, water-based coating. Designed specifically for closed-cell tubing and sheet insulation, it leaves a flexible, satin white finish that looks great and provides tough protection. This coating blocks harmful UV rays, resisting UV damage for 2 to 3 years outdoors, and stands up to the elements. Plus, it includes an EPA-registered antimicrobial agent to help control mold, mildew, and other unwanted growth. This product comes in a 1-gallon container and is sold in a carton of 4.