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Waterproofing membrane
The new waterproof material has strong impermeability, high resistance to high and low temperatures, as well as good strength and elongation. It is easy to operate, fast, and easy to master. It is widely used for roof waterproofing of high-end buildings, underground engineering waterproofing, tunnel top waterproofing, and leakage in garbage dumps.
Roads, railways, airports, water conservancy projects, environmental protection projects, electric power projects, waterproof materials, ground leather substrates, etc.
A、Appearance
|
Serial Number |
project |
index |
|
1 |
cut |
Flat and without obvious serrations |
|
2 |
Perforation repair point |
No more than 2 per roll |
|
3 |
Water marks, clouds, and mechanical scratches |
Not obvious |
|
4 |
Joints and Breaks |
Not allowed |
|
5 |
Tolerance on length and thickness |
Length ± 0.1 (in meters) Thickness ± 0.1 (in mm)
|
B、PVC Reference standard (GB/T12953-91)
|
Serial Number |
project |
Superior products |
First Grade |
Qualified products |
|
1 |
tensile strength Mpa≥ |
15.0 |
10.0 |
7.0 |
|
2 |
elongation at break %≥ |
250 |
200 |
150 |
|
3 |
Heat treatment size change rate %≤ |
2.0 |
2.0 |
3.0 |
|
4 |
Low temperature bending |
-No cracks at 20 ℃ |
||
|
5 |
impermeability |
0.2Mpa, impermeable for 24 hours |
||
|
6 |
Perforation resistance |
Impermeable to water |
||
|
7 |
Adhesion in shear state |
≥ 2.0N/mm or broken at the joint |
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C、EVA、PE Reference standard (GB/T17643-2011)
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Serial Number |
project |
index |
|||
|
GL |
GH |
||||
|
GL-1 |
GL-2 |
GH-1 |
GH-2 |
||
|
1 |
tensile strength（Mpa） |
≥14 |
≥17 |
≥25 |
|
|
2 |
elongation at break（%） |
≥400 |
≥450 |
≥550 |
|
|
3 |
Right angle tear strength（N/mm） |
≥50 |
≥80 |
≥110 |
|
|
4 |
Carbon black content（%） |
≥2 |
|||
|
5 |
Environmental stress cracking resistance F20（h） |
|
|
|
≥1500 |
|
6 |
Oxidation induction time at 200 ℃（min） |
|
|
|
≥20 |
|
7 |
Water vapor permeability coefficient g.cm/（cm2.s.Pa） |
≤1.0×10-16 |
|||
|
8 |
-70 ℃ low-temperature impact embrittlement performance |
pass through |
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|
9 |
dimensional stability % |
±3 |
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