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3M AC-665 Class C-48 Aerospace Sealant

Category Polymer , Thermoset
Manufacturer 3M
Trade Name
Port Ningbo port,China
Trade Terms FOB, CFR, CIF
Payment Terms L/C, T/T, Western Union
Download PDF 3M AC-665 Class C-48 Aerospace Sealant.pdf
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Material Notes:
3M Aerospace Sealant AC-665 Class C 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 C 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 flowable, faying surface grade material, easily applied by brush, spatula, extrusion gun or roller. 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 1.52 - 1.55 g/cc
0.0549 - 0.0560 lb/in³
MIL-PRF-81733D
Volatiles 7.0 %
7.0 %
Brookfield Viscosity 200000 - 350000 cP
200000 - 350000 cP
Base, RVF #6 sp @ 2 rpm
Mechanical Properties Metric English Comments
Hardness, Shore A 45 - 50
45 - 50
MIL-PRF-81733D
Tensile Strength at Break 1.79 MPa
260 psi
MIL-PRF-81733D
Elongation at Break 550 %
550 %
MIL-PRF-81733D
Thermal Properties Metric English Comments
Maximum Service Temperature, Air 121 °C
250 °F
MIL-PRF-81733D
Minimum Service Temperature, Air -54.0 °C
-65.2 °F
MIL-PRF-81733D
Processing Properties Metric English Comments
Cure Time 3360 min
56.0 hour
10100 min
168 hour
Tack-Free Time
Shelf Life 9.00 Month

@Temperature <=26.7 °C
9.00 Month

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