RE-500, now with complete one-coat coverage, is a high-performance, spray-applied insulation encapsulant and coating for use inside HVAC ductwork. RE-500 is formulated with EPA-registered chemicals to resist microbial growth on the surface of the coating. At 13 g/l, this low VOC coating is ideal for critical projects such as hospital and schools. The semi-gloss finish provides a non-stick surface that will inhibit fiberglass degradation and debris accumulation that could lead to mold and mildew growth.