Structural Sealant

A non- slump, self fixturing, moisture curing, polyether adhesive sealant.
Tech Data PDF

Product Highlights

  1. Recommended to adhere all Hyload membranes to concrete and other Hyload membranes when hot air welding is unable to be utilized.
  2. Designed for damp, dry, or cold climates.
  3. Solvent free and contains no isocyanates.
  4. Will not shrink upon curing.
  5. Will not discolor when exposed to UV light.
  6. Will not out-gas or bubble on damp surfaces.
  7. Capable of joint movement in excess of 25% in both compression and extension.
  8. Can be applied in temperatures as low as 32 degrees F
  9. Skins over in 20 Minutes
  10. Paintable within 24 hrs.
  11. V.O.C free

Applications and Packaging


  • Detailing:
  • Roofing Membranes
  • Waterproofing membranes
  • Masonry flashing Membranes
  • Expansion Joints
  • Cove Joints
  • Parapets
  • Weather Sealing
  • Window and door Jams


  • 10.1 oz. tubes
  • 20 oz. sausages
  • 2 gallon Pails
  • Black, White, and Gray colors

Substrates and Performance Properties

  • ALL Hyload Membranes.
  • Wood
  • Metal
  • Concrete, Block, and Masonry
  • Glass
  • Stainless Steel

Performance Properties

Shear Strength380 PSIASTM D1002
Elongation at break290%ASTMD412
Hardness Shore A45ASTM C661
Tack Free Time20 min +/- 10 min45 =/- 5% RH
Tensile Strength 330 PSIASTMD412
Shrinkage No visible shrinkage after 14 days
Viscoscity1,200,000 cp
+/- 400,000 cp
Brookfield RVF
TF Spindle, 4
RPM, 73° F
Density 11.8 +/- 0.2 lbs. per gallonASTM D1475

Limitations and Warranty

  • Horizontal applications will require tooling
  • In areas where prolonged chemical exposure contact Hyload Technical services.
  • Do not store in elevated temperatures
  • Remove all coatings and sealers before application
  • Does not bond to Kynar 500® PVDF coated metals


Hyload makes available to its customers several high performance product warranties.  Contact Hyload’s Corporate Office directly for details. A standard warranty is 10 years.