APP (Atactic Polypropylene) modified bitumen membranes are plastomeric, offering superior high-temperature stability and UV resistance, while SBS (Styrene-Butadiene-Styrene) membranes are elastomeric, providing greater flexibility and low-temperature performance.
Performance Comparison
| Aspect | APP Membranes | SBS Membranes |
|---|---|---|
| Flexibility/Elasticity | Less flexible, especially in cold; limited elongation below freezing. | High elasticity and crack-bridging; excels in cold climates down to -25°C. |
| Temperature Resistance | Softening point 150-160°C; stable in heat, resists deformation. | Softer in extreme heat; better for dynamic substrates with movement. |
| UV and Aging | Strong UV resistance; maintains structure but brittles over time. | Ages via oxidation; needs protection but resists tearing. |
| Installation | Flows like wax at 300°F; quicker for less skilled applicators via torch. | Stickier melt; more precise torching, versatile methods. |
Applications
APP suits hot, sunny climates with static roofs due to heat and UV tolerance. SBS fits cold or movement-prone areas like the UK, offering longevity against weather and oxidation. Both achieve 25-40 year service life with proper installation per standards like ASTM D6162 and EN 13707.
Contact Us
For more information or to inquire about our Asphalt Waterproof Material, feel free to get in touch with us. We’re here to help!
- Phone: +86 138 6365 6701
- Email: Huafengwaterproof@gmail.com
- WhatsApp: +86 138 6365 6701
We look forward to assisting you with all your waterproofing needs!
