Xcel UBS exhibits excellent adhesion to many substrates including aluminum, brass, steel, Kynar®, Galvalume®, painted surfaces, vinyl, glass, granite, marble, wood and many plastics. Cures fast, even at low temperatures. UBS is highly weather resistant and can be painted with most paints. Manufactured from high grade Silane Modified Polymers UBS contains no solvents or isocyanates and is non-yellowing. Conforms to ASTM C920, Type S, Grade NS, Class 50, Use NT, G, A, and M. AAMA 802.3 Type II Back Bedding Compound. USDA accepted.