3M™ Aerospace Sealant AC-770 Class B .
3M™ Aerospace Sealant AC-770 Class B are fast cure, low
density two-component, manganese dioxide cure, polysulfide
fuselage sealants. 3M AC-770 Class B Sealants have outstanding
resistance to aviation gasoline and jet fuel, as well as resistance
to chemicals and petroleum products common to the aircraft
industry. 3M AC-770 Class B Sealants maintain flexibility and
bond strength on most metal substrates such as; aluminum,
titanium, steel, stainless steel, and many coatings under
extremes of temperature, weathering and stress. The mixed
compound is a thixotropic paste easily applied by extrusion,
injection gun or spatula, and exhibits superb tooling properties .
Applications :
- Sealing fuselages .
- Filling voids .
