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

• MAT-587 Qualified (B-1/2,B-2)

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