Self-adhesive Polymer-Modified Bitumen Waterproofing Membrane
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Self-adhesive Polymer-Modified Bitumen Waterproofing Membrane
Applicable Standards:GB 23441-2009
Product Introduction
Self-adhesive polymer - modified bitumen waterproofing membranes are manufactured using a self-adhesive polymer-modified bitumen base— formulated from high-quality modified bitumen and special tackifiers—to produce either non-reinforced or reinforced self-adhesive membranes.
Non-reinforced self-adhesive membranes (Type N) are rollable sheet-type waterproofing membranes with a top surface made of high-strength cross-laminated film (PE film), polyester film (PET film), or siliconecoated release film, and a bottom surface coated with silicone release film.
Self-adhesive waterproofing membranes with a reinforcing layer (Type PY) are rollable sheettype waterproofing membranes manufactured using filament polyester felt as the reinforcing base, with a polyethylene film or release film serving as the top surface release layer and a silicone-coated release film applied to the bottom surface.
Product Features
1、Special tackifiers and bitumen modifiers are added to the product to ensure excellent adhesion to the substrate, effectively preventing water penetration.
2、It has excellent elongation and is highly adaptable to expansion, contraction, or cracking of the substrate.
3、It features outstanding “self-healing” capabilities, enabling it to automatically repair holes with a diameter of ≤2 mm.
4、No open flames are required during construction.
Key Performance Indicators
- Class N Performance Metrics
- PY-Class Performance Metrics
Recommended Level 1 Waterproofing Design Plan
Scope of Application
Suitable for waterproofing in roofing projects for industrial and residential buildings, underground construction, municipal engineering, water storage tanks, swimming pools, and subway tunnels; Particularly suitable for waterproofing projects where open flames cannot be used.
Construction Methods
Substrate Preparation → Application of Primer→Treatment of Detail Areas (Installation of Reinforcement Layer) → Positioning and Chalking Out Lines → Large-Area Installation of Roll Materials → Sealing of Overlaps and Edges → Quality Inspection and Acceptance → Installation of Protective Layer
Storage and Transportation
1、During storage and transportation, products of different types and specifications should be stored separately and should not be mixed.
2、Keep away from direct sunlight and rain, and ensure proper ventilation. The storage temperature should not exceed 45°C.
3、When stored horizontally, stack no more than 5 layers high; when stored vertically, stack in a single layer.
4、Prevent tilting or lateral pressure during transport; cover with a tarp if necessary.
5、Under normal storage and transportation conditions, the shelf life is 1 year from the date of manufacture.
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