3M™ Aerospace Sealant AC-665 Class B .
3M™ Aerospace Sealant AC-665 Class B are two-part,
manganese-cured, chromate containing, corrosion inhibiting
sealants. These sealants provide an effective barrier against the
common causes of corrosion on aluminum and between
dissimilar metals. 3M AC-665 Class B Sealants have outstanding
resistance to aviation gasoline and jet fuel, as well as resistance
to chemicals, hydraulic fluids and petroleum products common
to the aircraft industry. The mixed compound is a thixotropic
paste, easily applied by spatula, extrusion gun or injection gun.
They maintain flexibility and bond strength on most metal
substrates under extremes of temperature, weathering and stress.
Applications :
- Sealing faying surfaces of mating parts .
- Sealing joints from passage of liquid or air .
- Preventing corrosion and channeling leakage
