Dapco 2200 from D Aircraft is a fast curing, primerless firewall sealant most commonly used as a coating, sealant, or filleting material in the construction, repair, and maintenance of all types of aircraft. Dapco 2200 is especially useful where fire resistance, exposure to phosphate ester fluids, and/or exposure to extreme temperatures -65°F (-54°C) to 400°F (204°C) are major considerations. Dapco 2200 can also be used as an insulative and/or ablative heat shield.