P-2055-Special Polyurethane / Acrylic - Aliphatic Isocyanate based topcoat roofing cremite ondulin Topcoat paint Special Antimony resin based paint used for water and heat insulation on metal, shingle, slate membrane, tile and ondulin roofs. It prevents the roofs from getting water due to abrasion, cracks, damage caused by nails, etc. and gives an aesthetic appearance.