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Repair Sealants

3M™ Aerospace Sealant AC-250 A-1/6 - Quick Repair

AC-250 Class A is a two-part, low temperature curing polysulfide, quick repair sealant for integral fuel tank and fuselage sealing applications. The mixed compound is a pourable liquid which can be applied with a spatula, extrusion gun or brush. It will cure to a fuel-resistant rubber at temperature above 20°F.

AC-250 Class A1/6 - Quick Repair Technical Data Sheet (PDF, 93 Kb)

3M™ Aerospace Sealant AC-250 B-1/6 - Quick Repair (Low Temperature Curing Sealant)

AC-250 Class B is a two-part, polysulfide, quick repair sealant for integral fuel tank and fuselage sealing applications. The mixed compound is a thixotropic paste and can be readily applied with a spatula or extrusion gun. It will cure to a fuel-resistant rubber at temperature above 20°F. AC-250 Class B exhibits excellent tooling properties.

AC-250 Class B1/6 - Quick Repair (Low Temperature Curing Sealant) Technical Data Sheet (PDF, 94 Kb)