Advantages
- Forms a seamless membrane without joints or potential leak points
- Resistant to cold and warm water as well as frost
- Maintains mechanical properties over a temperature range of -30°C to +90°C
- Remains elastic even at low temperatures
- Odor-free and solvent-free formulation
- Fully adheres to the surface
- The waterproofed surface can be walked on
Surface Preparation
Careful surface preparation is essential for optimal finish and durability.
Ensure the surface is clean, sound, and free of contaminants that could impair adhesion.
The maximum moisture content should not exceed 5%. The substrate’s compressive strength should be at least 25 MPa, with a cohesive bond strength of at least 1.5 MPa.
Remove old coatings, dirt, organic substances, and dust using a grinding machine.
Oil or grease contamination must be thoroughly cleaned. Any surface irregularities should be smoothened, and loose particles and dust should be removed completely.
For crack repair, static cracks wider than 0.2 mm should be treated using injection resin. The crack should be opened in a V-shape using a diamond disc saw, and reinforcing metal blades should be placed inside after making perpendicular cuts to the crack. Fill the crack with injection resin until fully saturated. For vertical surfaces, use high-pressure injection of epoxy resin.
Warning: Do not wash the surface with water!
Surface Preparation
Before application, ensure that all surfaces are clean, dry, and free of oils, dirt, debris, or minerals such as efflorescence, lime, and calcium deposits, which could interfere with proper adhesion. It is recommended to use PU RC WB 2K Concrete and Masonry Cleaner as a pre-treatment to clean masonry surfaces thoroughly. After cleaning, allow the surface to dry completely before applying the topcoat.
Physical Properties
| # | Test | Results | Test Method |
|---|---|---|---|
| 1 | Composition | Polyurethane Resin + Hardener | – |
| 2 | Water Absorption | < 0.80 % after 72 hrs | – |
| 3 | Resistance to Water Pressure | No Leak (1 m water column, 24 h) | DIN EN 1928 |
| 4 | Adhesion to Concrete | > 2.0 N/mm² | ASTM D 903 |
| 5 | UV Accelerated Ageing | Passed – No significant changes | EOTA TR-010 |
| 6 | Hydrolysis (5% KOH, 7 days cycle) | No significant elastomeric change | In-house Lab |
| 7 | VOC | Low | – |
| 8 | Tack-Free Time | 6-8 hours | – |
| 9 | Light Pedestrian Traffic Time | 24 hours | 20°C, 50% RH |
| 10 | Final Curing Time (Ponding Test) | 7 days | – |
| 11 | Tensile Strength | > 1.2 MPa | ASTM D2197 |
| 12 | Mixing Ratio | 10:2.5 by weight | – |
