Waterproofing Resins & Coatings
DuoSeal PU-220 Two-Component Resin
In StockTwo-component polyurethane that foams rapidly inside water-filled cracks to deliver a dense, durable seal in wet conditions.
DuoSeal PU-220 pairs a resin and a polyol component that, when injected together, foam aggressively in the presence of water. The result is a dense polyurethane mass that fills and seals even fully saturated cracks.
Its two-component design gives crews predictable, repeatable reaction behaviour — a key advantage on large remediation jobs where consistency matters.
Key Features
- Two-part system for consistent, controlled foaming
- Performs in fully water-filled cracks
- Dense foam with strong cavity-filling action
- Good chemical resistance once cured
Applications
- Sealing wet, water-bearing cracks and joints
- Below-grade structures and diaphragm walls
- Dam and reservoir remediation
- Wastewater and utility tanks
Technical Specifications
| Base | Two-component polyurethane |
|---|---|
| Mix ratio | 1 : 1 by volume |
| Viscosity (mixed) | 200–300 mPa·s |
| Reaction | rapid foaming in water |
| Density (cured foam) | ~ 0.9 g/cm³ |
| Packaging | 2 × 10 kg kit |
| Shelf life | 12 months, sealed |
Free Samples Available
Request a free product sample and technical data sheet before you order.
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