AC-251 Black 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. AC-251 Black Class B Sealants contain no solvent and do not craze. The sealants quickly cure and exhibit excellent adhesion and resistance to UV and weather exposure.
3.5oz Fill Premixed Syringe
AC-251 Black Class B Sealants have a thixotropic, non-sag consistency
They can be readily applied with a spatula or extrusion gun on vertical surfaces