Topps Seal® Base Coat for EPDM/PVC all rubber elastomeric provides an economical foundation layer to Topps Seal coating systems being installed on EPDM/PVC surfaces. The enhanced added adhesive package works with the permanently flexible rubbers to provide superior bonding. The Topps Seal finish coat becomes inseparable as these two layers meet and fuse together. The completed combination of elongation capabilities and tensile strength provide superior resistance to meet all climate and thermal change demands. The interlinking network of components unify into a seam-free, single ply layer of rubber that applies a virtual lock onto existing roofing membranes. The result: a highly elastic seamless top layer bound to the resilient foundation base layer, producing new weathering protection to existing roofs that can benefit from a maintenance procedure for extended roof life.