Resfoam HB 45
Resfoam HB 45 is a flexible, low-viscosity, hydrophobic polyurethane grout designed to stop water infiltration in concrete structures. It is a solvent-free, MDI-based polymer system that reacts with water to form a semi-rigid, hydrophobic foam. It is specifically engineered to penetrate fine cracks and voids, sealing them effectively against water intrusion.
Applications & Uses
- Stopping active water leaks in concrete structures - Sealing cracks in dams, tunnels, and underground structures - Consolidation of loose rock and soil - Filling voids and sealing infiltration points
Features & Benefits
- Single-component system with accelerator for adjustable reaction speed - Low viscosity (approx. 200 cps) allows penetration into fine cracks - Adjustable reaction time (12s to 60s) using Resfoam HBA 45 - High expansion rate (up to 800-1000% of original volume) - Forms a stable, hydrophobic, semi-rigid foam - Solvent-free and non-toxic after curing
Technical Specifications
- Chemical Base
- MDI-based polyurethane
- Viscosity
- 150 - 250 mPa·s
- Density
- 1.1 g/cm³
- Expansion Ratio
- Up to 40-50 times (free rise)
- Reaction Start Time
- Adjustable (approx. 10-60 seconds)
