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Bondseal 1128: One Part Polyurethane Sealant


Regular price $6.99

Unit price per 


Bondseal 1128 One Part Polyurethane Sealant

1 Can = 10.9 oz (310ml) Cartridge

Bondseal 1128 is a performance-grade, industrial strength, one-part polyurethane sealant that's moisture curing and provides an extremely durable bond when filling gaps, joints and cracks. Its innovative new rheology makes it easy to apply with a standard caulking gun, yet still retains excellent non-sag properties.

Bondseal 1128 polyurethane sealant and adhesive features an exceptionally low isocyanate content, meaning it's safer to use than traditional commercial-grade polyurethane sealants. 

Bondseal 1128 is paintable once a skin forms after application. This revolutionary new polyurethane sealant remains permanently flexible after curing while providing great impact and cut resistance with a 100% waterproof seal.  


Why Choose Bondseal 1128 One-Part Polyurethane?

✓ Bonds and seals

✓ Excellent cure rate

✓ Flexible Superior bond

✓ Non-slumping

✓ Great chemical resilience

✓ Allows for paint over

✓ Low hazards content


Download the Bondseal 1128 Information Sheet here!

Bndseal Brochure Cover Image   


Bondseal 1128 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%
  • Skin Formation: 45 Minutes
  • Color: Black
  • Shelf Life: 12 Months
  • Coverage: Approximately 10 linear meters per 300ml cartridge @ 3mm bead
  • Packaging: 10.9oz (310ml)


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