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.

QUICK CURE SEALANT KIT

Product Details

Manufacturer	3M
Part Number	3M AC-770 B2
Pack Size	PINTKIT
Specification	BMS5-142G TYPE II, CLASS B-2,FORM K
Hazmat	NON HAZ

Availability

Under Lead Time (3–4 weeks)