3M™ Aerospace Sealant AC-770

• Low density formula weighs 3–4 lbs. less per gallon than traditional sealants
• Helps reduce shrinkage and rework for total cost reduction
• 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

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.

Lightweight, Effective Sealing