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  • Long open time for positioning parts
  • Broader adhesion to a variety of substrates, with less need for primers
  • Advanced chemistries resist cracking, yellowing, chalking and UV degradation
  • Lasting sealant provides excellent color stability
  • 3M Polyurethane Adhesive Sealant 551 is a white, one component, medium strength polyurethane adhesive sealant that is designed for sealing and bonding of many applications that include marine and specialty vehicle markets. Our moisture curing adhesive sealant forms a permanent elastic bond on a wide variety of materials including plastics, metals, fiberglass, and wood.
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