3M AC-236 Class A-1/2 Aerospace Sealant

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3M AC-236 Class A-1/2 Aerospace Sealant
Categories:	Polymer; Thermoset; Polysulfide Sealant/Adhesive
Material Notes:	3M Aerospace Sealant AC-236 Class A are brushable, two-component, liquid polysulfide polymer sealant providing excellent fuel tank and fuselage seals. They have outstanding resistance to aviation gasoline and jet fuel, as well as resistance to chemicals and petroleum products common to the aircraft industry. 3M AC-236 Class A Sealants maintain flexibility and bond strength on most metal substrates like aluminum, stainless steel, steel, and many coatings under extremes of temperature, weathering and stress. The mixed compound is a pourable liquid applied by brush. They have excellent tooling properties. Information provided by 3M
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Physical Properties	Original Value	Comments

Density	1.64 g/cc	cured 14 days @ 50% RH
Volatiles	13 %
Brookfield Viscosity	10000 - 50000 cP	RVF #16 sp @ 10 rpm

Mechanical Properties	Original Value	Comments
Hardness, Shore A	60	cured 14 days @ 50% RH

Thermal Properties	Original Value	Comments
Maximum Service Temperature, Air	121 °C	cured 14 days @ 50% RH
Minimum Service Temperature, Air	-54.0 °C	cured 14 days @ 50% RH

Processing Properties	Original Value	Comments
Cure Time	24.0 hour
Tack-Free Time	7.00 hour

Descriptive Properties
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PMM35366 / 170113

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