GP - TPO Thermoplastic Polyolefin (TPO) Waterproofing Membrane
TPO waterproofing membrane, that is the thermoplastic polyolefin waterproofing membrane, is a new type of waterproofing membrane made of thermoplastic polyolefin (TPO) synthetic resin which combines ethylene propylene rubber and polypropylene together through advanced polymerization technology, and adding antioxidants, anti-aging agents and softeners. It can use polyester fiber mesh cloth as the internal reinforcing material to make the reinforced waterproofing membrane, and it belongs to the waterproof products of synthetic polymer waterproofing membranes category.

Performance Characteristic
TPO waterproofing membranes combine the performance advantages of EPDM and PVC, possessing the weather resistance and low - temperature flexibility of the former and the weldability of the latter. Different from traditional plastics, this material exhibits high rubber elasticity at room temperature and can be molded like plastic at high temperatures. Therefore, it has good processing and mechanical properties, as well as high - strength welding performance. By adding a layer of polyester fiber fabric between two layers of TPO material, its physical properties can be enhanced, and its breaking strength, fatigue resistance, and puncture resistance can be improved.
Specification Classification
●Classified by product composition, it includes homogeneous membranes (code: H), membranes with fiber backing (code: L), and membranes with internal fabric reinforcement (code: P).
●Homogeneous thermoplastic polyolefin waterproofing membrane (H): A thermoplastic polyolefin waterproofing membrane that does not use internal reinforcement materials or backing materials.
●Thermoplastic polyolefin waterproofing membrane with fiber backing (L): A thermoplastic polyolefin waterproofing membrane with a fabric, such as polyester non - woven fabric, laminated on the lower surface of the membrane.
●Thermoplastic polyolefin waterproofing membrane with internal fabric reinforcement (P): A thermoplastic polyolefin waterproofing membrane reinforced with polyester or fiberglass mesh cloth in the middle of the membrane.
Application Scope
This product is suitable for the waterproof layer of exposed or non-exposed roofs of buildings, as well as the waterproofing of the basements of buildings that are prone to deformation. It is especially suitable for the light steel structure roofs. With a reasonable layer design and qualified construction quality, it can not only reduce the weight of the roof, but also achieve excellent energy-saving effects. Moreover, it can provide waterproofing and prevent condensation. It is the preferred waterproof material for the roofs of large industrial plants, public buildings and other buildings. It can also be used in waterproofing and moisture-proofing projects such as drinking water reservoirs, bathrooms, basements, tunnels, grain depots, subways, reservoirs, etc.
Implementation Standard
|
Inspection Items |
Standard Requirement |
Inspection Results |
Single Item Judgment |
Remarks |
|
Thickness(mm) |
Nominal Value±0.1 |
1.52 |
Qualified |
Measured Average Thickness |
|
Tensile Strength (Longitudinal) |
≥500 N/5cm |
580 N/5cm |
Qualified |
GB/T 328.8-2007 |
|
Elongation at Break (Longitudinal) |
≥20% |
25% |
Qualified |
GB/T 328.8-2007 |
|
Tear Strength (N) |
≥250 |
280 |
Qualified |
GB/T 328.15-2023 |
|
Flexibility at Low Temperature |
-40℃ No cracks |
No cracks |
Qualified |
GB/T 328.14-2019 |
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