Thermoplastic polyolefin (TPO) rolls, which use advanced polymerization technology, combine the durability and weather resistance of ethylene - propylene (HP) rubber with the thermal weldability of polypropylene.The coil has long - term weather resistance and does not use plasticizer. Product Feature 1. Few auxiliary materials, convenient construction and good system integrity; 2. Excellent tensile, tear and puncture resistance; 3. No plasticizer, no plasticizer migration problem, excellent heat aging resistance and uv resistance, direct exposure, large thickness above the base, durable; 4. Hot air welding, high seam peeling strength (twice as high as PVC); 5. Fast welding speed; 6. Chlorine free and 100% recyclable, environmentally friendly; 7. Maintain excellent thermal welding performance for a long time, easy to repair; 8. Smooth surface, no fading, anti-pollution; Scope of application Widely used in industrial and civil and public buildings of all kinds of roofing waterproof works.