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3M AC-665 Class B-2 Aerospace Sealant

Category Polymer , Thermoset
Manufacturer 3M
Trade Name
Port Shanghai port,China
Trade Terms FOB, CFR, CIF
Payment Terms L/C, T/T, Western Union
Download PDF 3M AC-665 Class B-2 Aerospace Sealant.pdf
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Material Notes:
3M Aerospace Sealant AC-665 Class B are two-part, manganese-cured, chromate containing, corrosion inhabiting 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 stress.Information provided by 3M
Physical Properties Metric English Comments
Density 1.60 g/cc
0.0578 lb/in³
MIL-PRF-81733
Volatiles 2.0 %
2.0 %
Brookfield Viscosity 600000 - 1.40e+6 cP
600000 - 1.40e+6 cP
Base, RVF #7 sp @ 2 rpm
Mechanical Properties Metric English Comments
Hardness, Shore A 52
52
MIL-PRF-81733
Elongation at Break 425 %
425 %
MIL-PRF-81733
Thermal Properties Metric English Comments
Maximum Service Temperature, Air 121 °C
250 °F
MIL-PRF-81733
Minimum Service Temperature, Air -54.0 °C
-65.2 °F
MIL-PRF-81733
Processing Properties Metric English Comments
Cure Time 1200 min
20.0 hour
Tack-Free Time
2400 min
40.0 hour
Shelf Life 9.00 Month

@Temperature <=26.7 °C
9.00 Month

@Temperature <=80.1 °F
Descriptive Properties Value Comments
Appearance Black
Accelerator
Yellow
Base
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