Concrete and Mortar 
Exterior Waterproofing 
Professional Sealants 
Roof Waterproofing 
Substructure Waterproofing 
Tiling and Grouting 
Water Tanks and Other Areas 
Wet Areas 
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Confirms requirements of ASTM C 836:2018
| PROPERTIES | STANDARD | RESULTS |
|---|---|---|
| Appearance | Opaque | |
| Colour | Red, grey, white(subject to availability) | |
| Shore A | 60 | |
| Solid(%) | ASTM C 836 : 2018 | >85 |
| Low Temp, Crack-Bridging @ 3.2 mm | ASTM C 1305 : 2016 | No Cracking |
| Adhesion in Peel after Water | ASTM C 794 : 2018 | 26 |
| Immersion (N) | ||
| Tensile Strength(N/mm2) | ASTM D 412:2016 | >2 |
| Elongation(%) | ASTM D 412:2016 | >500 |
| Density at @25°C(gm/ cc) | 1.45 | |
| Cure Time | 7 days | |
| Water Vapour Transmission(g/m2/day) | ASTM E 96 : 2022 | 19.4 |
| Resistant to Water @ 5 Bar Pressure | EN 12390-8 : 2019 | Pass |
| Root Penetration | CEN/TS - 14416 : 2014 | No Root Penetration |
- 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 Tru-Pu-Pura 1K?
Tru-Pu-Pura 1K is a single-component, liquid-applied, moisture-curing polyurethane waterproofing membrane. It forms a seamless, elastomeric, and durable waterproofing layer on concrete and masonry surfaces.
What are the key features of Tru-Pu-Pura 1K?
Tru-Pu-Pura 1K is a high-solid, low VOC, and eco-friendly waterproofing membrane. It offers excellent elongation, crack-bridging ability, and adhesion to the substrate. It is resistant to water, UV, thermal cycling, and root penetration.
How does Tru-Pu-Pura 1K waterproof surfaces?
When applied to the substrate, Tru-Pu-Pura 1K cures by reaction with atmospheric moisture to form a tough, elastic, and impermeable membrane that prevents water and moisture ingress. It can bridge hairline cracks and withstand minor substrate movements
What surfaces can Tru-Pu-Pura 1K be applied on?
Tru-Pu-Pura 1K can be applied on concrete, masonry, cement screed, metal, wood, ceramic tiles, and other common building substrates. It is ideal for waterproofing roofs, terraces, balconies, podiums, wetrooms, water tanks, and foundations.
How is Tru-Pu-Pura 1K applied?
Tru-Pu-Pura 1K 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 for added strength.
What is the recommended coverage rate for Tru-Pu-Pura 1K?
The coverage rate of Tru-Pu-Pura 1K 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 Tru-Pu-Pura 1K?
The substrate must be clean, dry, and free from loose particles, dust, grease, oil, curing compounds, or any other contaminants that may affect adhesion. Repair any cracks, honeycombs, or damages before waterproofing. Prime the surface if required.
How long does Tru-Pu-Pura 1K take to cure?
Tru-Pu-Pura 1K 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.
Can Tru-Pu-Pura 1K be exposed to sunlight or traffic?
Tru-Pu-Pura 1K is designed to provide durable waterproofing, but for long-term performance it should be protected with a suitable screed, protective topping, or approved finish as recommended in the application system. In areas exposed to regular foot traffic or vehicular movement, a protective wearing course is essential to prevent mechanical damage and extend the membrane’s service life.
How long does Tru-Pu-Pura 1K waterproofing last?
When applied as per the recommended specifications and thickness on properly prepared substrates, Tru-Pu-Pura 1K can provide effective waterproofing and protection for 10 years or more with regular maintenance and periodic recoating if required.
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