Henry, 10.1 oz, white, tropi-cool silicone roof sealant, high solids dispersion of 100% silicone, tough, flexible seal on vertical & horizontal applications, excellent resistance to uv & weather, no hardening, chalking, crazing or cracking, mold & mildew resistant, excellent adhesion to variety of building materials, withstands ponding water, can be applied between 35 degrees & 120 degrees, cartridge fits standard caulk guns.