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Integral Fuel Tank and Fuselage Sealants

3M™ Aerospace Sealant AC-236 Class A

AC-236 Class A is a brushable, two-component, liquid polysulfide polymer system providing excellent fuel tank and fuselage seals. It has outstanding resistance to aviation gasoline and jet fuel, as well as resistance to chemicals and petroleum products common to the aircraft industry. AC-236 Class A maintains its 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 easily applied by brush. It has excellent tooling properties.

AC-236 Class A Technical Data Sheet (PDF, 125 Kb)

3M™ Aerospace Sealant AC-236 Class B

AC-236 Class B is a two-component, manganese dioxide cured, liquid polysulfide polymer system providing excellent fuel tank and fuselage seals. It has outstanding resistance to aviation gasoline and jet fuel, as well as resistance to chemicals and petroleum products common to the aircraft industry. AC-236 Class B maintains its 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 thixotropic paste easily applied by extrusion, injection gun or spatula. It has excellent tooling properties.

AC-236 Class B Technical Data Sheet (PDF, 75 Kb)

3M™ Aerospace Sealant AC-236 Class C

AC-236 Class C is a two-component, manganese dioxide cured, liquid polysulfide polymer system providing excellent fuel tank and fuselage seals. It has outstanding resistance to aviation gasoline and jet fuel, as well as resistance to chemicals and petroleum products common to the aircraft industry. AC-236 Class C maintains its 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 flowable, faying surface grade material easily applied by brush, roller, spatula or extrusion gun. It has excellent tooling properties.

AC-236 Class C Technical Data Sheet (PDF, 72 Kb)

3M™ Aerospace Sealant AC-240 Class B - Fast Cure

AC-240 Class B is a two-part, polysulfide based product for use as a quick cure sealant for integral fuel tanks and fuselages. The mixed compound has a thixotropic non-sag consistency and can be readily applied with a spatula or extrusion gun or vertical surfaces. It will cure to a fuel-resistant rubber at temperature above 20ºF and exhibits excellent tooling properties with very low shrinkage.

AC-240 Class B - Fast Cure Technical Data Sheet (PDF, 73 Kb)

3M™ Aerospace Sealant AC-275 Class B - High-Temperature

AC-275 Class B is a high temperature two-component, liquid polysulfide polymer system providing excellent fuel tank and fuselage seals. It has outstanding resistance to aviation gasoline and jet fuel, as well as resistance to chemicals and petroleum products common to the aircraft industry. AC-275 Class B maintains its 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 thixotropic paste easily applied by extrusion, injection gun or spatula. It has excellent tooling properties.

AC-275 Class B - High-Temperature Technical Data Sheet (PDF, 96 Kb)

3M™ Aerospace Sealant AC-350 Class A - Intermediate Density

AC-350 Class A is a fast cure, intermediate density two-component, manganese dioxide cure, brushable, polysulfide fuel tank and fuselage sealant. AC-350 has outstanding resistance to aviation gasoline and jet fuel, as well as resistance to chemicals and petroleum products common to the aircraft industry. AC-350 Class A maintains its 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.

AC-350 Class A - Intermediate Density Technical Data Sheet (PDF, 75 Kb)

3M™ Aerospace Sealant AC-350 Class B - Intermediate Density

AC-350 Class B is a fast cure, intermediate density two-component, manganese dioxide cure, solvent free, polysulfide fuel tank and fuselage sealant. AC-350 has outstanding resistance to aviation gasoline and jet fuel, as well as resistance to chemicals and petroleum products common to the aircraft industry. AC-350 Class B maintains its 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 thixotropic paste easily applied by extrusion, injection gun or spatula and exhibits superb tooling properties.

AC-350 Class B - Intermediate Density Technical Data Sheet (PDF, 84 Kb)

3M™ Aerospace Sealant AC-350 Class C - Intermediate Density

AC-350 Class C is a fast cure, intermediate density polysulfide sealant suitable for fuel tank and fuselage applications. This two-component, manganese dioxide cured sealant has outstanding resistance to aviation gasoline and jet fuel, as well as resistance to chemicals and petroleum products common to the aircraft industry. AC-350 Class C maintains its 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 flowable, faying surface grade material easily applied by brush, roller, spatula or extrusion gun. The sealant exhibits superb tooling properties.

AC-350 Class C - Intermediate Density Technical Data Sheet (PDF, 71 Kb)

3M™ Aerospace Sealant AC-360 A-2 - Intermediate Density

AC-360 Class A is a fast cure, intermediate density two-component, manganese dioxide cure, brushable, polysulfi de fuel tank and fuselage sealant. AC-360 has outstanding resistance to aviation gasoline and jet fuel, as well as resistance to chemicals and petroleum products common to the aircraft industry. AC-360 Class A maintains its 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.

AC-360 Class A - Intermediate Density Technical Data Sheet (PDF, 74 Kb)

3M™ Aerospace Sealant AC-360 Class B - Intermediate Density

AC-360 Class B is a fast cure, intermediate density two-component, manganese dioxide cure, polysulfide fuel tank and fuselage sealant. AC-360 has outstanding resistance to aviation gasoline and jet fuel, as well as resistance to chemicals and petroleum products common to the aircraft industry. AC-360 Class B maintains its 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 thixotropic paste easily applied by extrusion, injection gun or spatula and exhibits superb tooling properties.

AC-360 Class B - Intermediate Density Technical Data Sheet (PDF, 81 Kb)

3M™ Aerospace Sealant AC-370 Class B - Low Density

AC-370 Class B is a fast cure, low density polysulfide sealant suitable for fuel tank and fuselage sealant aplications. This two-component, managanese dioxide cured sealant is solvent free and has outstanding resistance to aviation gasoline and jet fuel, as well as resistance to chemicals and petroleum products common to the aircraft industry. AC-370 Class B maintains its flexibility and bond strength on most metal substrates such as: aluminium, titanium, steel, stainless steel, and many coatings under extremes of temperature, weathering and stress. The mixed compound is a thixotropic paste easily applied by extrusion, injection gun or spatula, and exhibits superb tooling properties.

AC-370 Class B - Low Density Technical Data Sheet (PDF, 93 Kb)

3M™ Aerospace Sealant AC-380 Class B

AC-380 Class B is a fast cure, 1.1 specific gravity, solvent free, and high temperature integral fuel tank sealant. This material is designed for fillet sealing of fuel tanks and other aircraft fuselage sealing applications. It offers as much as thirty percent weight savings, per unit volume, over traditional sealants with similar purpose. The cured sealant has outstanding resistance to aviation gasoline and jet fuel, as well as resistance to chemicals and petroleum products common to the aircraft industry. The sealant will resist limited contact to diphosphate ester based hydraulic fluid.

AC-380 Class B Technical Data Sheet (PDF, 75 Kb)