YOST Geocel 2300 Tripolymer sealant is designed to combine the flexibility of Urethanes, the paintability of acrylics, the long life expectancy of silicones And can be applied year round (see recommendations, below). It does not Attract dust and dirt like silicone caulk. It is compatible with asphalt roofs 10.3 OZ. CARTRIDGE used with caulking gun