Your current position: HomeProductsThermoplastic polyolefin (TPO)
The thermoplastic polyolefin (TPO) waterproof membrane is a kind of vinyl resin-based material, the use of a sheet of thermoplastic rubber elastic waterproof material advanced polymer technology and specific formulation made in recent years in the United States and Europe, the prevalence of a new materials, ingredients does not contain plasticizers, there is no plasticizer migration and brittle, has a tensile strength, wear resistance, resistance to ultraviolet radiation is strong, smooth surface, high reflectivity and resistance to pollution of the integrated features, easy processing, welding, construction convenient, fully recyclable, green.
No. | Items | Indicators | ||||
H | L | P | ||||
1* | The above intermediate tread base resin layer thickness/mm ≥ | ﹣ | 0.4 | |||
2* | Stretching&Performance | Maximum Rally /N/cm ≥ | ﹣ | 200 | 250 | |
Tensile Strength/Mpa ≥ | 12 | ﹣ | ﹣ | |||
When the maximum tensile elongation/ ≥ | ﹣ | ﹣ | 15 | |||
Elongation at break %/ ≥ | 500 | 250 | ﹣ | |||
3* | Heat treatment size change rate/% ≤ | 2 | 1 | 0.5 | ||
4* | Flexibility at low temperature | ﹣40℃ No cracks | ||||
5 | Impermeability | 0.3MPa,2h Impermeable | ||||
6 | Impact resistance | 0.5kg*m,Impermeable | ||||
7 | Resistance to static loading | ﹣ | ﹣ | 20kgImpermeable | ||
8 | The seam peel strength/(N/mm) ≥ | 0.4Or membrane damage | 3 | |||
9 | Right angle tear strength/(N/mm) ≥ | 60 | ﹣ | ﹣ | ||
11 | Trapezoidal tear strength/N ≥ | ﹣ | 250 | 450 | ||
12 | Water absorption(70℃,168h)/% ≤ | 4 | ||||
13 | Thermal aging(115℃) | Time | 672h | |||
Exterior | No blistering、crack、Stratified、Bonding and holes | |||||
The maximum tensile retention/% | ﹣ | 90 | 90 | |||
Retention of tensile strength/% | 90 | ﹣ | ﹣ | |||
Elongation retention at maximum tension/% | ﹣ | ﹣ | 90 | |||
Breaking elongation retention/% | 90 | 90 | ﹣ | |||
Flexibility at low temperature | ﹣40℃ No cracks | |||||
14 | Chemical resistance、Learnability | Exterior | No blistering、crack、Stratified、Bonding and holes | |||
The maximum tensile retention/% | ﹣ | 90 | 90 | |||
Retention of tensile strength/% | 90 | ﹣ | ﹣ | |||
Elongation retention at maximum tension/% | ﹣ | ﹣ | 90 | |||
Breaking elongation retention/% | 90 | 90 | ﹣ | |||
Flexibility at low temperature | ﹣40℃ No cracks | |||||
15 | Artificial、climate、accelerate、Ageing | Time h | 1500b | |||
Exterior | No blistering、crack、Stratified、Bonding and holes | |||||
The maximum tensile retention/% | ﹣ | 90 | 90 | |||
Retention of tensile strength/% | 90 | ﹣ | ﹣ | |||
Elongation retention at maximum tension/% | ﹣ | ﹣ | 90 | |||
Breaking elongation retention/% | 90 | 90 | ﹣ | |||
Flexibility at low temperature | ﹣40℃ No cracks | |||||
a Resistance to static loading only for pressing roofing coil requirements | ||||||
b Monolayer membrane roofing products use artificial climate accelerated aging time of 2500h |