HYBond Primer

HyBond Primer is a blend of select asphalts, and refined solvents designed to penetrate porous surfaces and bind, chalky, dusty surfaces.
Tech Data PDF

Product Highlights

  1. Recommended to adhere all Hyload Self-adhering membrane systems
  2. Enhances the adhesion of built up roof systems (including modified bitumen) as well as protective coatings.
  3. Not effected by high alkaline environments typical of masonry construction
  4. Hyload Systems will not deteriorate or harden with longevity or ultra violet ray exposure
  5. Meets current VOC requirements (Except California, See HyPrime)
  6. The excellent qualities of this product allow it to adhere to most dry surfaces.
  7. Asbestos free formulation.
  8. Cured asphalt film meets ASTM D 41 requirements. UL Classified for material characteristics.

Applications and Packaging


  • Through-Wall Masonry Flashing
  • Door Jam Flashing
  • Window Jam Flashing
  • In conjunction with Hyload Pre-Formed Shapes
  • Hyload Waterproofing membranes
  • Hyload Roofing membranes


  • 5 gallon pail

Substrates and Performance Properties

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

Performance Properties

Wt / GalD65117.2 – 7.6
SolidsD6511% by weight 52-57
% by volume
Viscosity, secondsSaybolt Furol25-75
Flash PointPMCC105° min
Colored, uncured and curedBlack
Drying time, touch2 hours 70°F / 50% RH
Shelf Life1 year 70°F / 50% RH
VOC EPA Method 24A450 g/liter max

Limitations and Warranty

  • Hyload HyBond Primer should not be applied when temperatures are below 40°F or when rain is imminent.
  • During hot weather, the product should be stored in a cool shaded area.
  • Do not dilute this product.
  • DO NOT use on 100% rubber or plastic substrates.
  • DO NOT use on products containing coal tar.
  • DO NOT apply to damp or wet surfaces.
  • DO NOT use where this product may come into contact with potable water.


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.