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Massetak Polyurethane Sealant

Massetak Adhesives

Regular price $8.99

Unit price per 


High Performance Massetak Polyurethane Sealant 

1 Cartridge = 10 oz

Massetak high performance polyurethane sealant is an industrial strength, moisture-curing, professional grade adhesive and sealant combo that provides an extremely durable bond when joining surfaces, filling gaps, joints and cracks. Its unique rheology makes it easy to apply with a standard caulking gun, yet still retains excellent non-sag properties when applied to vertical surfaces and great initial tack ideal for bonding metals such as stainless steel and aluminum.

This high performance polyurethane sealant excels in use above and below the waterline in marine environments and has very good resistance to fading, aging and cracking due to extended ultraviolet light exposure. Once the skin forms after initial application, Massetak High Performance Polyurethane Sealant can be painted.

This all-in-one polyurethane sealant and adhesive remains permanently flexible once cured with great impact and cut resistance while providing a 100% waterproof seal. Massetak high performance polyurethane sealant features exceptionally low isocyanate content, making it much safer to use than traditional polyurethane sealants and silicones. 


Benefits of Massetak High Performance Polyurethane Sealant:

  • Bonds and seals
  • Excellent cure rate
  • Flexible Superior bond
  • Non-slumping
  • Great chemical resilience
  • Allows for paint over
  • Extremely low hazards content


Massetak Polyurethane Sealant Technical Data:

  • Chemical Base: Polyurethane
  • Viscosity: Paste
  • Elongation at Break: >550% Shore Hardness 35-45, Shore A
  • Cure Type: Moisture Cure
  • Cure Rate: 3mm/24 hours at 68°F and 65%
  • RH Skin Formation: 45 Minutes
  • Color: Black
  • Shelf Life: 12 Months
  • Coverage: Approximately 10 linear meters per 300ml cartridge @ 3mm bead


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