SBS Liquid Applied Waterproofing Membrane is a high-performance, cold-applied waterproof coating system based on SBS (Styrene-Butadiene-Styrene) modified bitumen and advanced polymer emulsification technology. It forms a seamless, highly elastic rubberized waterproof layer after curing, combining the durability of traditional SBS membranes with the flexibility and convenience of liquid-applied construction.
The product is designed for direct application on concrete, mortar, metal, and various construction substrates without the need for open flame, primer, or heating equipment. Once applied, it creates a continuous waterproof barrier that effectively prevents water penetration while adapting to structural movement and minor cracking.
Its self-healing properties allow the membrane to automatically seal micro-cracks and punctures, ensuring long-term waterproof reliability in both new construction and renovation projects.
Key Features & Benefits
When traditional waterproofing systems face challenges from joints, cracks, and complex structures, QINGYUAN SBS Liquid Waterproof Membrane provides a seamless and flexible solution with excellent durability and long-term protection.
Seamless waterproof coating forms a continuous protective layer without joints, eliminating leakage risks caused by membrane overlaps.
Ultra-high elasticity with excellent elongation performance adapts to substrate movement and prevents cracking.
Self-healing capability automatically seals minor punctures and damage to maintain waterproof performance.
Excellent resistance to high and low temperatures ensures stable performance under different climate conditions.
Strong adhesion bonds firmly with concrete, cement mortar, metal sheets, old asphalt membranes, and various construction surfaces.
Cold application without open flame improves construction safety and reduces fire risks compared with traditional hot-melt membranes.
Excellent crack-bridging ability covers minor substrate cracks and prevents water penetration.
Strong resistance to UV aging, rainwater, acids, and underground moisture ensures long-term outdoor durability.
Ideal for roof renovation, metal roofing, basements, balconies, and complex waterproofing repair 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 substrates.
- Waterproof performance: withstands 0.3MPa water pressure for 30 minutes without leakage.
- Low-temperature flexibility: -20°C without cracking, suitable for cold and underground applications.
- Tensile strength: ≥500N/50mm, ensuring reliable mechanical performance and durability.
- Elongation: ≥800%, allowing excellent resistance to structural movement and deformation.
- Self-healing adhesive layer automatically seals micro-cracks and punctures to prevent water penetration.
- Standard thickness options: 1.2mm / 1.5mm / 2.0mm / 3.0mm for different application requirements.
You get more than waterproofing — you get long-term protection, structural stability, and worry-free performance in every climate.
Standard Construction Process
Professional installation methods ensure uniform coating performance, seamless waterproof protection, and long-lasting durability for various applications.
Base Surface Preparation
Clean dust, dirt, oil stains, moss, and loose materials from the substrate. Repair cracks and uneven areas before application.
Detail Reinforcement Treatment
Apply an additional coating layer to corners, pipe penetrations, expansion joints, and drainage areas. Reinforce cracks with polyester mesh when required.
First Layer Coating Application
Mix the material evenly and apply the first coat uniformly by roller, brush, or spray. Ensure full coverage without exposed substrate areas.
Cross Layer Coating Application
Apply the second coat perpendicular to the first layer after drying. Multiple layers should be applied to achieve the required waterproof thickness.
Curing & Waterproof Film Formation
Allow the coating to cure naturally after installation. Protect the surface from rain, impact, and heavy loads before complete drying.
Protective Layer Installation & Inspection
After full curing, apply protective layers such as cement mortar or concrete when required. Inspect the waterproof surface before project completion.
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
