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Specifications
PVC Waterproofing Roof Underlayment1.Low temperature -5,-10,-15,-20,-25
3.surface with polymer
4.3mm,4mm, 5mm,
PVC Waterproofing Roof Underlayment
Product Information
PVC roofing membrane is a highly-engineered,new-type membrane manufactured
using polyvinyl chloride as main materials and added other chemicals such as anti-oxidant,anti-UV materials to make it flexible,stable and UV-resistant.
Product Features
The PVC waterproofing Membrane formulas are based upon polyvinyl chloride resin with other assistants added to provide flexibility and stability such as anti-oxidant, absorbent of ultraviolet light, plasticizer and plastic filling agent.They have good properties compared to that of Butyl, EDPM and HYPALON based water proofing membrane. They have high tensile strength and elongation properties are added to provide flexibility and stability such as anti-oxidant, absorbent of ultraviolet light, plasticizer and plastic filling agent.
Application Range
GB12952-2010
No. |
Test Item |
Indicators |
||
Code L | ||||
1 |
Stretching Performance |
Maximum Tension N/cm ≥ |
120 |
|
Breaking Elongation%≥ |
150 |
|||
2 |
Heating Treatment Size Change Rate%≤ |
1.0 |
||
3 |
Low-temperature Bending |
-25°C No Craze |
||
4 |
Water Impermeability |
0.3Mpa,2h Water Impermeability |
||
5 |
Impact Resistance |
0.5kg·m , Water Impermeability |
||
6 |
Seam Peel Strength N/mm ≥ |
4.0 or Membrane Breaking |
||
7 |
Trapezoid Tear Strength N≥ |
150 |
||
8 |
water absorption(70°C168h)% |
After Soaking ≤ |
4.0 |
|
After Airing≥ |
-0.40 |
|||
9 |
Heat aging(80°C) |
Time |
672h |
|
Appearance |
No blisters, cracks, delamination, bonding and holes |
|||
Tensile Strength (max. tensile)Retention%≥ |
85 |
|||
Elongation Retention %≥ |
80 |
|||
Cold Bending |
-20°C No Craze |
|||
10 |
Chemical Resistance |
Appearance |
No blisters, cracks, delamination, bonding and holes |
|
Tensile Strength (max. tensile)Retention %≥ |
85 |
|||
Elongation Retention %≥ |
80 |
|||
Cold Bending |
-20°C No Craze |
|||
11 |
Artificial climate accelerating ageing c |
Time |
1500hb |
|
Appearance |
No blisters, cracks, delamination, bonding and holes |
|||
Tensile Strength (max. tensile)Retention %≥ |
85 |
|||
Elongation Retention%≥ |
80 |
|||
Cold Bending |
-20°C No Craze |
|||
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