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3M AC-736 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-736 B-2 Aerospace Sealant.pdf
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Material Notes:
3M Aerospace Sealant AC-736 B-2 is a non-chromate corrosion inhabiting sealants, fast cure, low density two-component, manganese dioxide cure, polysulfide fuselage sealant. These Sealants act as an effective barrier against the common causes of corrosion on aluminum and between dissimilar metals. 3M AC-736 B-2 Sealants has outstanding resistance to aviation gasoline and jet fuel, as well as resistance to chemicals, hydraulic fluids and petroleum products common to the aircraft industry. 3M AC-736 B-2 Sealant maintains its flexibility and bond strength on most metal substrates such as aluminum, titanium, steel, stainless steel, and many other extremes for temperature, weathering and stress. The mixed compound is a flowable, fay surface grade material, easily applied by spatula, brush, roller or extrusion 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 1.10 g/cc
0.0397 lb/in³
cured 14 days @ 50% RH
Volatiles 4.0 %
4.0 %
Brookfield Viscosity 900000 - 1.60e+6 cP
900000 - 1.60e+6 cP
Base, RVF #7 sp @ 2 rpm
Mechanical Properties Metric English Comments
Hardness, Shore A 42 - 48
42 - 48
cured 14 days @ 50% RH
Tensile Strength at Break 1.59 MPa

@Temperature 336 °C
231 psi

@Temperature 637 °F
MIL-PRF-81733 AND AS5127A
1.86 MPa

@Thickness 3070 mm,
Temperature 168 °C
270 psi

@Thickness 121 in,
Temperature 334 °F
MIL-PRF-81733 AND AS5127A
1.86 MPa

@Treatment Temp. 121 °C,
Time 605000 sec
270 psi

@Treatment Temp. 250 °F,
Time 168 hour
MIL-PRF-81733 AND AS5127A
Elongation at Break 170 %
170 %
72 hrs in JRF is 60°C, 72 hrs at 49°C, 7 days at 121°C; MIL-PRF-81733 AND AS5127A
120 %

@Temperature 121 °C,
Time 605000 sec
120 %

@Temperature 250 °F,
Time 168 hour
MIL-PRF-81733 AND AS5127A
390 %

@Time 1.21e+6 sec
390 %

@Time 336 hour
Standard Cure; MIL-PRF-81733 AND AS5127A
Thermal Properties Metric English Comments
Maximum Service Temperature, Air 121 °C
250 °F
cured 14 days @ 50% RH
Minimum Service Temperature, Air -54.0 °C
-65.2 °F
cured 14 days @ 50% RH
Processing Properties Metric English Comments
Cure Time 720 min
12.0 hour
Tack-Free Time
720 min
12.0 hour
Shelf Life 9.00 Month

@Temperature <=26.7 °C
9.00 Month

@Temperature <=80.1 °F
Descriptive Properties Value Comments
Appearance Brown
Accelerator
Dark Brown
Off White
Base
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