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BOSS® PU 50 is a fast-curing, one-component, moisture-curing polyurethane adhesive sealant, that turns into a flexible, durable and resistant elastomeric seam and has very good adhesion to most industrial materials.



This product is available in white and black.



Available in standard 600 ml sausages.



  • Applicable in warm and humid climates.
  • Can be painted with all water-based paints and other systems.
  • Excellent resistance to many chemicals.
  • Good weather and UV resistance.
  • High viscosity.
  • Medium open time.
  • Permanently elastic after curing.
  • Excellent primer-less adhesion on many materials such as aluminium, steel, GRP, epoxy coatings, and so on
  • Watertight.


  • Adheres without primer to the most common substrates, such as glass, anodized aluminium, lacquered metal, wood, FRP, and concrete.
  • Supple bonding and sealing in the automotive industry, especially on surfaces that vibrate – bus-bodies, caravans, and containers.

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