3M AC-251 B-2 Aerospace Sealant 3.5oz Kit

3M Aerospace Sealant AC-251 is our two-part, manganese dioxide cured, polysulfide based sealant for aircraft windshields, canopies and windows. This quick curing product is easy to tool, and the non-sag formula holds its shape on vertical and horizontal surfaces. AC-251 is effective for acrylic, glass, and polycarbonate aircraft transparencies and exterior mold line applications.

Clearly Effective

3M Aerospace Sealant AC-251 is designed to create an aesthetically pleasing and highly effective seal. Its formulation prevents crazing on adjacent transparent surfaces, making our black, non-sagging product look as good as it performs. AC-251 is designed for optimal performance when used with 3M Adhesion Promoter.

Features:

• Maintains flexibility and bond strength for reliable performance on aircraft transparencies
• Contains no added solvents to prevent crazing on transparent surfaces
• Formulated to resist UV degradation
• Black color provides clean exterior mold lines
• Non-sag formula is easy to mix and apply by injection dispenser or spatula for fast application time
• Qualified to multiple aerospace material specifications