Denso^™ moulding mastics are self-supporting, cold-applied compounds used to contour irregular profiles, such as flanges and couplings, before the application of petrolatum or bitumen tape wrap. Denso also offer Densoseal 16A^™ (for sealing ducts and cable entries) and Denso Void Filler^™ Type 1 (for filling voids and encapsulating pipes and cables).