3M - Aerospace Black Standard, Class B-1/2 Spec Canopy & Windshield Sealant | 051141-57983
3M™ Aerospace Sealant AC-251 Class B are two-part, quick curing, polysulfide based canopy and windshield sealants. These products are formulated for sealing acrylic, glass, and polycarbonate aircraft canopies and windshields. They contain no solvents and do not craze. The sealants quickly cure and exhibit excellent adhesion and resistance to UV and weather exposure.