Dow Corning Q4-2817 fluorosilicone sealant is a one-component, room temperature curing, elastomer paste that is used for sealing, bonding and protecting components from solvents, fuels, moisture, shock and corrosion. - It can be used on aircraft fuel tanks, stainless steel, aluminum, glass, polyester, epoxies and cured silicone rubber. It offers flexibility, easy use, high strength and resistance to moisture, ozone and weathering.