Polymer modified bituminous self-adhesive waterproofing membrane is a high-performance cold-applied waterproofing material based on polyester or fiberglass reinforcement and advanced polymer-modified bitumen adhesive.
The product features a high-strength membrane structure combined with a self-adhesive rubberized bitumen layer, protected by a release film. It is designed for direct application on concrete, cement mortar, metal, and other substrates without the need for open flame, primer, or heating equipment.
Once installed, the membrane forms a continuous waterproof barrier with strong adhesion to the substrate, effectively preventing water penetration and channeling. The self-adhesive layer also provides excellent self-healing performance, automatically sealing minor cracks and punctures to ensure long-term waterproof reliability.
Compared with traditional torch-applied membranes, this product offers safer construction, higher efficiency, and better adaptability for indoor, basement, and renovation waterproofing projects.
Key Features & Benefits
When waterproofing projects require safe installation, strong bonding, and reliable long-term protection, QINGYUAN Polymer Modified Bitumen Self-Adhesive Waterproof Membrane provides an efficient cold-applied solution for roofs, underground structures, and renovation projects.
Cold-applied installation requires no torch heating, reducing fire risks and improving construction safety.
High-performance self-adhesive layer provides strong bonding with concrete, mortar, metal, and other substrates.
Self-healing adhesive technology automatically seals minor cracks and punctures to prevent water migration.
Excellent flexibility adapts to substrate movement, settlement, and thermal expansion without cracking.
Strong reinforced structure with polyester or fiberglass carrier provides excellent tensile strength and tear resistance.
Superior resistance to water, acids, alkalis, and aging ensures long-lasting performance in harsh environments.
No primer and no heating equipment required, simplifying installation and reducing labor costs.
Strong adhesion prevents hollowing, peeling, and separation during long-term service.
Suitable for underground structures, roofs, balconies, interior waterproofing, and old building renovation projects.
Our Product Specifications
- Cold-applied self-adhesive system, no torch and no primer required for safe construction
- High-performance modified bitumen adhesive ensures strong bonding to concrete, mortar, and metal
- Waterproof: 0.3MPa water pressure resistance for 30 minutes
- Low temperature flexibility: -20°C without cracking
- Tensile strength: ≥500N/50mm for reliable structural performance
- Elongation: ≥30%, adapts to structural movement and deformation
- Self-healing adhesive layer seals micro-cracks and punctures automatically
- Standard thickness: 1.2mm / 1.5mm / 2.0mm / 3.0mm available for different applications
You get more than waterproofing — you get long-term protection, structural stability, and worry-free performance in every climate.
Standard Construction Process
Professional cold-applied installation methods ensure strong bonding, reliable sealing, and long-lasting waterproof protection for different construction applications.
Base Surface Preparation
Clean dust, loose materials, and sharp objects from the substrate. Repair uneven areas and ensure the surface is solid and suitable for membrane installation.
Detail Reinforcement Treatment
Apply additional self-adhesive membrane layers to critical areas such as corners, pipe penetrations, drainage points, and expansion joints.
Membrane Positioning & Installation
Mark installation lines, remove the release film gradually, and place the membrane onto the substrate while pressing with a roller or scraper to remove trapped air.
Overlap Joint Sealing
Remove the release film from overlap areas and press the joints firmly to create a continuous waterproof seal. Apply additional sealant if required.
Water Testing & Inspection
After installation, perform a 24–48 hour water test for roofs or water-retaining structures. Confirm no leakage or moisture penetration.
Protective Layer Installation
Install protective layers such as cement mortar, concrete, or finishing materials according to project requirements to protect the waterproof system.
Our Guarantee
As a trusted waterproofing material manufacturer, QINGYUAN Waterproof focuses on product innovation, precise manufacturing, and strict quality management. We ensure every roll is produced according to standard specifications, providing consistent quality, reliable performance, and dependable solutions for global construction projects.
1. Raw Material Assurance
We use high-grade bitumen and SBS elastomer to ensure stable modification performance and consistent product quality.
2. Manufacturing Quality Control
Every roll is produced under standardized manufacturing processes with strict control of thickness, weight, and surface uniformity.
3. Performance Compliance Assurance
All products are tested according to GB 18242-2008 standard, ensuring key performance such as tensile strength, flexibility, and waterproofing meet requirements.
4. Factory Consistency Assurance
We ensure stable batch-to-batch production consistency to support reliable large-scale engineering supply.
Our Installation Projects
