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| Specification Category | Technical Detail |
| Brand | Sika |
| Model Number | Sikalastic-590 IN |
| Chemical Base | Polyurethane Modified Acrylic |
| Packaging Size | 20Kg Plastic Pails |
| Color Options | Grey and White |
| Density | Approximately 1.32 kg/L |
| Tensile Strength | Approximately 1.7 N/mm |
| Solar Reflectance | Approximately 80 Percent (White) |
| Thermal Emittance | Approximately 0.91 (White) |
| Shelf Life | 12 Months |
| Usage Logic | Standalone or Fleece Reinforced |
Polyurethane-Modified Acrylic Hybrid: Combines the durability of polyurethane with the ease of acrylic to create a highly elastic, crack-bridging membrane that withstands structural movement.
Enhanced Solar Reflectivity Index: Features a high solar reflectance index of approximately 100.9 (for White), significantly reducing cooling costs and improving building energy efficiency.
Advanced Weathering Resistance: Specifically engineered to resist UV exposure, yellowing, and artificial weathering, ensuring the membrane remains intact without cracking or chalking.
Superior Ponding Water Behavior: Demonstrates excellent performance under limited water ponding conditions, making it suitable for roofs with complex drainage and geometry.
Vapor Permeable Protection: Provides a completely seamless waterproofing barrier while remaining breathable, allowing water vapor to escape and preventing substrate pressure buildup.