Your Next Polyurethane Water Swelling Sealant Starts Here!
TP640-220/400 Water swellable sealant can be cured in humid environments. Curing time depends on the temperature and humidity of environments. It is suitable for waterproofing of concrete construction joints. Anti-leakage of various types of embedded components.
Features & Benefits
- Good water-stopping effect: it has the elastic sealing water of rubber and the double sealing water stopping mechanism of its own volume expansion and water stop after water, and can resist water pressure of 2.5Mpa.
- Good expansion: high expansion rate, reaching more than 220% or 400%.
- Convenient construction: single component swellable sealant, standard caulking gun available.
- Construction tight & close: It can be firmly attached to the concrete surface regardless of whether the base surface is wet, smooth or rough.
- Safe and environmentally friendly: safe, non-toxic, it is an environmentally friendly product in contact with drinking water.
- Cost-effective: The performance is better than the traditional construction joint waterproof material, such as steel edge rubber water-stop glue or tape, the price is reasonable.
Application Areas
Waterproof polyurethane sealant is perfect for sealing construction joints, structural cracks, and pipelines in underground projects such as tunnels, subways, and building foundations
- Railway tunnels, road tunnels, urban subways, underground structures of buildings, sewage treatment tanks, etc.
- The construction joints of various underground structures are waterproof.
- The underground structure is watered after the pouring.
- All kinds of pre-buried pipelines, through-wall steel bars, H-beams, pile caps and other waterproof.
- Various types of construction joints or structural cracks
- Water- and gastight sealing of most pipes in gas-, water- and cable ducts.
Technical Data Table
| Model | TP-220 | TP-400 |
|---|---|---|
| Solid Content ≥85% | 99.2 | 99.8 |
| Density (g/cm3) | 1.33 | 1.4 |
| Sagging（mm）≦2 | 0 | |
| Tack free time(h) ≤24 | 4.4 | 2.5 |
| 7d Tensile Adhesive Strength (MPa) ≧0.4 | 1 | 0.8 |
| Low temperature flexiblility | No Cracking | |
| Tensile Strength (MPa) ≧0.5 | 3.98 | 2.8 |
| Elongation at break ≧400% | 621 | 807 |
| Volume expansion ratio | 326% | 422% |
| Long-term soaking volume expansion ratio retention ) ≧90% | 99 | 101 |
| Water pressure resistance (no water seepage) | No water | No water |
| Thickness after full dry(mm) ≧2 | 2.52 | 3.2 |
| Harmful material limit | VOC g/L | 16 |
| The free toluene diisocyanate (TDI) g/kg | 0 | |
Packaging & Color Options
Factory-Direct Expanding Sealant Waterproof Polyurethane Sealant — Ready for OEM, Bulk Supply & Branding Caulking Solutions
- Packing & Quantity:
- 600ml sausages, 20 pcs/carton
- 310ml cartridges, 20 pcs/carton
- Colors: White, Black, Grey, etc.
OEM & Custom Options
Full RAL color matching available.
Custom branding on cartridges, sausages, and cartons.
Multi-language labels and export-ready packaging.
Safety & Storage
- Keep contents out of reach of children.
- 12months stored at dry below 25℃ unopened in original containers.
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