Resfoam HB 45

Resfoam HB 45

Flexible, Hydrophobic Polyurethane Grout

Resfoam HB 45 is a low-viscosity, flexible, hydrophobic polyurethane grout used to stop water infiltration in concrete structures. Resfoam HB 45 is a solvent-free, MDI-based polymer system that reacts with water. Use Resfoam HB 45 together with Resfoam HBA 45 accelerator to adjust the reaction profile for a specific application. In a free-rise circumstance, Resfoam HB 45 will expand up to 750% of its liquid volume. Upon application, Resfoam HB 45 reacts to form a closed-cell polyurethane grout that will not shrink, and provides an elastomeric waterproof barrier sealing infiltration points against water intrusion. Resfoam HB 45 is nontoxic and has good chemical resistance.

  • Single-component with accelerator
  • Forms a closed-cell, nonshrinking flexible foam
  • 100%-solids
  • Low in viscosity to penetrate deeply into fine cracks
  • Certified by the Water Quality Association (WQA) for NSF/ANSI 61 projects
  • Controllable reaction times
  • Expands up to 750% of its original volume

Related documentation

Technical Data Sheet
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Safety Data Sheet
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