Where surfaces move, flex and bake in the sun, polyurethane excels. Our PU membranes cure to a jointless, highly elastic film with superb UV and chemical resistance — ideal for the most demanding roofs and decks.
Single-component elastomeric polyurethane membrane
A high-solids, VOC-compliant, one-part moisture-curing polyurethane that forms a seamless, jointless membrane with exceptional elongation and crack-bridging. SR Coat PU 270 keeps its mechanical properties from −30 °C to +90 °C and is even locally repairable within minutes.
| Type | 1-component moisture-cure PU |
|---|---|
| Elongation | > 400% |
| Tensile strength | > 2.75 N/mm² |
| Tear resistance | 9.7 kN/m |
| Adhesion | > 3 N/mm² |
| Crack-bridging | > 3.2 mm |
| Temp. range | −30 °C to +90 °C |
| Low-temp elongation (−29°C) | > 300% |
| Water absorption | 0.98% |
Single-component STPE liquid waterproofing membrane
A ready-to-use, single-component, moisture-curing elastomeric membrane built on advanced STPE technology — solvent-free and isocyanate-free for safer application. SR Coat PU 370 delivers outstanding mechanical, chemical, thermal and UV resistance with easy roller or brush application.
| Type | 1-component STPE membrane |
|---|---|
| Specific gravity | 1.38–1.44 |
| Tack-free time | 40–100 min |
| Cure rate | > 2 mm/day |
| Tensile strength | > 0.6 N/mm² |
| Elongation | > 250% |
| Tear strength | > 4 N/mm |
| Application temp. | +5 °C to +40 °C |
| Packaging | 20 L pail — white |
Polyurethane dispersion & flow-applied topcoats
Completing the polyurethane line: SR Coat PUD is a water-based polyurethane-dispersion waterproofing coating, and SR Coat TC is a flow-applied flexible polyurethane topcoat that adds a tough, UV-stable wearing surface and finish colour over PU membranes. Available on request for specified projects.
| SR Coat PUD | Polyurethane-dispersion coating |
|---|---|
| SR Coat TC | Flow-applied flexible PU topcoat |
| Finish | UV-stable, flexible |
| Use | Topcoat / wearing layer over PU membranes |
| Availability | On request — ask our team |
Our Qatar-based engineers will inspect, diagnose and recommend the right system — in writing, with no obligation.
