GP-WLM Wet-Laid Waterproofing Membrane
Wet-laid waterproof membrane is a waterproof product that can be constructed on a damp base surface. The material contains special active substances that can react with cement mortar or plain cement slurry to achieve full adhesion with the base surface or the main structure.
This product has a self-healing function. After reacting and solidifying with the liquid concrete slurry, it forms a gap-free combination between the waterproof layer and the concrete structure, eliminating the hidden danger of water seepage between layers and effectively improving the reliability of the waterproof system.
Product Features
●High bonding strength and tear resistance;
●Self-healing, no water leakage, and gentle water management;
●The material strongly penetrates the base layer, and the hydrophilic molecular chain segments have high strength and "bite" with the base layer;
Application Scope
Wet-laid waterproof membrane is used for non-exposed waterproof projects and is bonded to the concrete base with cement paste or cement mortar.
Product Classification
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Construction method |
Main material |
Bonding surface |
Full thinkness of the coil material |
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Wet laying |
Polymer membrane-based waterproofing membrane |
High-strength type(H type) |
Single-side bonding(S);Double-side bonding(D) |
1.5mm,2.0mm |
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High elongation type(E type) |
1.5mm,2.0mm |
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Polyester-based waterproof coil(PYtype) |
3.0mm |
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Note：other size can be agreed upon by both supplier and the demander |
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Performance Indicator
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Execution standard for physical properties of wet-laid waterproof coils GB/T 35467-2017 |
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No. |
Item |
Index |
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H |
E |
PY |
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1 |
Soluable manner content/(g/m²) ≥ |
─── |
2100 |
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2 |
Tensile property |
Tensile force/(N/50mm) ≥ |
300 |
200 |
500 |
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Elongation at maxmium tensile force/% ≥ |
50 |
180 |
30 |
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NO seperate between the adhensive layer and the polymer membrane or the base fabric |
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3 |
Tear force/N ≥ |
20 |
25 |
200 |
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4 |
Heat resistance(70℃,2h) |
No flowing dripping or slipping≤2mm |
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5 |
Low tempreture flexibility(-20℃) |
No cracks |
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6 |
Water impermeability(0.3Mpa,120min) |
Water-resistant |
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