FLEX COAT AEROSOL is a spray that forms a protective asphalt seal on metals, rubber, asphalt composition, tile, slate, felt, wood, and other substrates, preventing moisture penetration and protecting against rust and corrosion. FLEX COAT AEROSOL can be applied wherever a waterproof, flexible, permanent asphalt coat is needed, and can also be applied cold. Ideal for air conditioning pans, it will flow into cracks before hardening and will act as a barrier to salt, mold and other environmental chemicals.