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  • Multi-purpose bonding and long lasting seals
  • Permanently elastic to allow joint movement
  • 60-90 skin time; paintable, once skin forms
  • Good UV resistance
  • 3M Polyurethane Adhesive Sealant 540 is an all-purpose, single-component, moisture-curing, gap-filling polyurethane adhesive that creates permanently elastic seals and bonds in a wide variety of service environments.
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