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3M™ Aerospace Sealant AC-251

  • Maintains flexibility and bond strength for reliable performance on aircraft transparencies
  • Formulated to resist UV degradation
  • Formulated to resist UV degradation
  • Black color provides clean exterior mold lines
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Specifications
Application Life
2 Hour
Cure Type
Fast Cure
Product Colour
Black
Total Recycled Content %
C
Product Details
  • Maintains flexibility and bond strength for reliable performance on aircraft transparencies
  • Formulated to resist UV degradation
  • 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

3M™ Aerospace Sealant AC-251 is a 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

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