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3M AC-350 Class A-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-350 Class A-2 Aerospace Sealant.pdf
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Material Notes:
3M Aerospace Sealant AC-350 Class A are fast-cure, intermediate density two-component, manganese dioxide cure, brushable, polysulfide fuel tank and fuselage sealants. 3M AC-350 Class A Sealants have outstanding resistance to aviation gasoline a jet fuel, as well as resistance to chemicals and petroleum products common to the aircraft industry. 3M AC-350 Class A 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 pourable liquid easily applied by brush or roller. It has excellent tooling properties.Information provided by 3M
Physical Properties Metric English Comments
Density 1.40 g/cc
0.0506 lb/in³
cured 14 days @ 50% RH
Volatiles 12 %
12 %
Brookfield Viscosity 25000 - 50000 cP
25000 - 50000 cP
Base, RVF #6 sp @ 10 rpm
Mechanical Properties Metric English Comments
Hardness, Shore A 48 - 53
48 - 53
cured 14 days @ 50% RH
Tensile Strength at Break 2.21 MPa
321 psi
JRF- 72 hrs @ 60°C, and 72 hrs @ 49°C Air Drying, and 7 days @ 121°C
2.41 MPa
350 psi
Standard Heat Cycle +JRF - 7 days @ 60°C
2.76 MPa
400 psi
Standard Cure
1.59 MPa

@Temperature 60.0 °C
231 psi

@Temperature 140 °F
JRF-14 days
2.41 MPa

@Temperature 182 °C,
Time 28800 sec
350 psi

@Temperature 360 °F,
Time 8.00 hour
Elongation at Break 80 %
80 %
Standard Heat Cycle +JRF - 7 days @ 60°C
150 %
150 %
JRF- 72 hrs @ 60°C, and 72 hrs @ 49°C Air Drying, and 7 days @ 121°C
350 %
350 %
Standard Cure
340 %

@Temperature 60.0 °C
340 %

@Temperature 140 °F
JRF-14 days
100 %

@Temperature 182 °C,
Time 28800 sec
100 %

@Temperature 360 °F,
Time 8.00 hour
Thermal Properties Metric English Comments
Maximum Service Temperature, Air 121 °C
250 °F
cured 14 days @ 50% RH
182 °C
360 °F
Short term, 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 480 min
8.00 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 Dark Brown
Accelerator
Light Gray
White
Base
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