3M Aerospace Sealant AC-730 Class B

3M Aerospace Sealant AC-730 Class B is a fast cure, two-part, non-chromated corrosion inhibiting sealant. Excellent for sealing faying surfaces of mating parts and sealing joints from passage of liquid or air, these manganese cured sealants provide an effective barrier against the common causes of corrosion on aluminium and between dissimilar metals. 3M AC-730 Class B Sealants have outstanding resistance to aviation gasoline and jet fuel, as well as resistance to chemicals, hydraulic fluids and petroleum products commonly used in the aircraft industry. The mixed compound is a thixotropic paste, easily applied by spatula, extrusion gun or injection gun. They maintain flexibility and bond strength on most metal substrates under extremes of temperature, weathering and stress.