3M™ Aerospace Sealant AC-770 B-1 Base, 50 gal

The 3M™ Aerospace Sealant AC-770 is a family of Class B, manganese dioxide cured polysulfide sealants formulated for easy tooling. Their fast cure time and low density contribute to faster process times and lighter aircraft. These two-component sealants have outstanding resistance to jet fuel, chemicals and petroleum products common throughout the aerospace industry.Low density formula weighs 3–4 lbs. less per gallon than traditional sealants, Quick cure allows increased throughput, Helps reduce shrinkage and rework for total cost reduction, Seals joints and gaps in fuselage applications, Maintains flexibility and bond strength under extremes of temperature, weathering and stress, Easier application – requires less mixing time and less tooling to apply