For use on metal & Fiberglass RV roofing (not recommended for EPDM rubber or TPO roofing)dicor elastomeric RV roof Coating protects and beautifies metal, aluminum, steel, fiberglass and previously coated RV roofs. Decor elastomeric RV roof Coating is formulated with 100% acrylic elastomeric resins to form a rubber-like coating that will expand and contract with the roof movement. Arctic white RV elastomeric is brilliant white to provide a superior reflectivity, thereby lowering interior temperatures. Requires two coats for adequate protection at an application rate of 1 gallon per 200 sq. Ft. Per coat.