Crystalline Waterproofing Coating is a cement-based, inorganic waterproof material composed of high-grade Portland cement, fine quartz sand, and active chemical compounds. It is supplied as a single-component dry powder that is mixed with water before application to form a brushable slurry.
After application on concrete surfaces, the active ingredients penetrate into the capillary pores and micro-cracks of the substrate, reacting with free calcium ions to form insoluble crystalline structures. These crystals grow within the concrete matrix, effectively blocking water pathways and providing permanent waterproofing protection.
Unlike surface coating systems, this material becomes an integral part of the concrete structure, offering long-term durability, resistance to water pressure, and the ability to self-seal minor cracks when exposed to moisture.
It is environmentally friendly, non-toxic, and suitable for both positive and negative water pressure conditions, making it widely used in underground structures, water retaining systems, and concrete infrastructure protection.
Key Features & Benefits
When concrete structures require permanent waterproof protection and self-healing performance, QINGYUAN Cementitious Capillary Crystalline Waterproof Coating provides an integrated solution by penetrating into concrete and sealing water pathways from within.
Deep crystalline penetration blocks capillary pores and micro-cracks inside concrete for long-lasting waterproof protection.
Active chemical components react with moisture to form insoluble crystals and provide continuous self-healing performance.
Automatic crack sealing capability repairs new micro-cracks when water activates the crystalline reaction.
Suitable for both positive and negative waterproofing applications, including underground structures and leakage repair projects.
Inorganic and environmentally friendly formulation contains no harmful substances and provides safe application for water-related structures.
Strong integration with concrete creates a permanent waterproof layer without peeling, bubbling, or separation.
Excellent resistance to water immersion, acids, and alkalis ensures durability in harsh underground environments.
Easy powder mixing application allows brushing, coating, and repair work without complex equipment.
Ideal for basements, tunnels, water tanks, underground structures, and concrete waterproof reinforcement projects.
Our Product Specifications
- Product form: Single-component cement-based dry powder
- Mixing ratio: Powder : water = 1 : 0.3–0.4 (standard coating application)
- Application method: Brush coating, trowel application, dry-shake method for repair
- Recommended thickness: Positive side waterproofing: ≥1.0 mm Negative side waterproofing: ≥1.5 mm
- Initial setting time: ≥20 min
- Final setting time: ≤240 min
- 7-day water pressure resistance: ≥0.8 MPa
- 28-day self-healing water resistance: ≥0.6 MPa
- Bond strength to concrete: ≥1.0 MPa
- Impermeability improvement ratio: ≥300%
- Water resistance: No powdering, peeling, or degradation after long-term immersion
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 deep penetration, strong bonding, and long-term self-healing waterproof performance for concrete structures.
Base Surface Preparation
Remove surface laitance, dust, oil stains, and loose concrete. Repair cracks, honeycombs, and damaged areas before application. Fully wet the concrete surface without standing water.
Material Mixing Preparation
Mix the powder with clean water according to the recommended ratio. Stir for several minutes until a smooth slurry is achieved and use within the specified working time.
Detail Reinforcement Treatment
Apply additional coating layers to construction joints, cracks, pipe penetrations, and weak areas. Use dry powder filling for deeper cracks when required.
Layered Coating Application
Apply the first coat evenly by brush or trowel. After initial drying, apply the second coat in a cross direction to ensure complete coverage.
Moist Curing Treatment
Maintain moisture after application by regular water spraying. Proper curing allows the crystalline reaction to continue and improves waterproof performance.
Water Testing & Final Inspection
After curing, perform water testing to verify waterproof performance. The surface can then receive protective layers such as cement mortar or concrete.
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
