3M Aerospace Sealant AC-240 B-2, 2 oz Kit | 3M Industrial

3M Aerospace Sealant AC-240 Class B is a two-part, polysulfide-based, long application life, quick cure product foruse as a sealant for integral fuel tanks and fuselages. This twocomponent, manganese dioxide cured sealant is solvent free andhas outstanding resistance to aviation gasoline and jet fuel, as well as resistance to chemicals and petroleum products common to theaircraft industry. 3M Aerospace Sealant AC-240 Class B maintainsflexibility and bond strength on most metal substrates such as:aluminum, titanium, steel, stainless steel, glass, and many coatingsunder extremes of temperature, weathering and stress. The mixedcompound has low-sag consistency and can be readily applied witha spatula or extrusion gun on vertical surfaces. 3M meets AC240B1/2, AMS-S8802