The under seal provides a durable high impact protective coating against corrosion, water, stones and salt. It is ideal for use under vehicle chassis, wheel arches, door sills, and fuel tanks, providing a tough, flexible, anti-chip, anti-corrosive coating. This product can also be used in a wide range of building applications where its waterproof properties are particularly important, such as general damp roofing. Silverhook Under Seal Spray Schutz 1L offers a tough, flexible, anti-chip, anti-corrosive coating. It provides a durable high impact protective coating against corrosion, water, stones & salt. It also finds many uses in a wide range of building applications, where its waterproof properties are particularly important, e.g. repairs to felt roofs, guttering, and general damp proofing.