Concrete and Mortar 
Exterior Waterproofing 
Professional Sealants 
Roof Waterproofing 
Substructure Waterproofing 
Tiling and Grouting 
Water Tanks and Other Areas 
Wet Areas 
Home
| PROPERTIES | STANDARD | RESULTS |
|---|---|---|
| Appearance | In House | Viscous Liquid |
| Colour | In House | Black after Drying |
| Density @25°C | ASTM D 1475-2013 | 1.07 ± 0.02 g/cm3 |
| Cure Time | 24 Hours approx. (complete curing 7 to 10 days) to 24 hours approx (complete curing 7 to 10 days). | |
| Tensile Strength at Break | ASTM D 412 | >1.5 N/mm2 |
| Elongation at Break | ASTM D 412 | ≥ 600 % |
| Crack Bridging (mm) | EN 1062-7 : 2004 | Approx. 2mm |
| Shore A Hardness | ASTM D 2240 : 2015 | Approx. 45 |
| WFT | In House | 1000 – 1200 micron |
| DFT | In House | 500 – 600 micron |
- Waterproofing of wet areas, foundations, basements, terraces, retaining walls, inverted roofs, etc.
- For waterproofing terrace, garden and podium
- Other roof structures when protected from exposure to direct sunlight, for a longer life
FAQ
What is Trubuild Waterproofing Membrane Tru-Pu?
Trubuild Waterproofing Membrane Tru-Pu is a high-performance, single-component, liquid-applied, moisture-curing polyurethane waterproofing membrane designed for protecting and waterproofing concrete and masonry surfaces in new construction and renovation projects.
What are the key features of Trubuild Waterproofing Membrane Tru-Pu?
Trubuild Waterproofing Membrane Tru-Pu is a high-solid, elastomeric, and durable waterproofing membrane with excellent elongation, crack-bridging ability, and adhesion to the substrate. It is resistant to water, UV, thermal cycling, and root penetration.
What surfaces can Trubuild Waterproofing Membrane Tru-Pu be applied on?
Trubuild Waterproofing Membrane Tru-Pu can be applied on concrete, masonry, cement screed, metal, wood, ceramic tiles, and other common building substrates. It is suitable for waterproofing roofs, terraces, balconies, podiums, wetrooms, water tanks, and foundations.
How does Trubuild Waterproofing Membrane Tru-Pu waterproof surfaces?
When applied to the substrate, Trubuild Waterproofing Membrane Tru-Pu cures by reaction with atmospheric moisture to form a tough, seamless, and impermeable membrane that prevents water and moisture ingress. It can bridge cracks and withstand minor substrate movements.
How is Trubuild Waterproofing Membrane Tru-Pu applied?
Trubuild Waterproofing Membrane Tru-Pu is applied by brush, roller, or airless spray in two or more coats to achieve a total dry film thickness of 1-1.5 mm, depending on the waterproofing requirements. Reinforcement fabric is embedded between coats over joints, cracks, or corners.
What is the recommended coverage rate for Trubuild Waterproofing Membrane Tru-Pu?
The coverage rate of Trubuild Waterproofing Membrane Tru-Pu varies with the substrate condition and application method. As a guide, it covers approximately 1-1.5 kg/m²/mm thickness. Two coats of 1 mm DFT each would require a total of 2-3 kg/m².
What surface preparation is needed before applying Trubuild Waterproofing Membrane Tru-Pu?
The substrate must be clean, dry, and free from loose particles, dust, laitance, oil, grease, curing compounds, or any other contaminants that may affect adhesion. Repair any cracks, honeycombs, or damages before waterproofing. Prime the surface if required.
Can Trubuild Waterproofing Membrane Tru-Pu be exposed to sunlight or traffic?
Trubuild Waterproofing Membrane Tru-Pu should be protected with a suitable screed or protective topping after application as per the recommended waterproofing system. For areas subjected to foot traffic, vehicular movement, or prolonged outdoor exposure, an appropriate protective layer helps safeguard the membrane from wear and environmental damage, ensuring long-lasting waterproofing performance.
How long does Trubuild Waterproofing Membrane Tru-Pu take to cure?
Trubuild Waterproofing Membrane Tru-Pu is touch-dry in 12 hours and can be recoated in 24 hours under standard conditions (30°C, 65% RH). It achieves full cure and mechanical properties in 7 days. Curing time may vary with temperature, humidity, and film thickness.
How long does Trubuild Waterproofing Membrane Tru-Pu waterproofing last?
When applied as per the recommended specifications and thickness on properly prepared substrates, Trubuild Waterproofing Membrane Tru-Pu can provide effective waterproofing and protection for 10 years or more with regular maintenance and periodic recoating if required.
Related Products