Waterproof coating and waterproof membrane are both used to protect buildings from water penetration, but they differ in material form, installation method and project suitability. Waterproof coatings are applied directly onto a substrate to form a continuous protective layer, while waterproof membranes are installed as preformed or site-formed barrier systems. The better choice depends on substrate complexity, exposure conditions, construction method and maintenance requirements.
| Factor | Waterproof Coating | Waterproof Membrane |
|---|---|---|
| Application form | Liquid or mortar-based | Sheet or membrane system |
| Surface adaptability | High on irregular details | Best on planned continuous areas |
| Joints | Can form seamless coverage | Joint treatment is critical |
| Typical areas | Bathrooms, roofs, walls, basements | Roofs, foundations, large waterproof areas |
| Procurement focus | Adhesion and formulation stability | Membrane integrity and joint reliability |
Caruns currently manufactures eight waterproofing solutions, including K11 Waterproof Mortar, JS Polymer Waterproof Coating, Red Rubber Roof Waterproofing, Acrylic Heat-Reflective Waterproof Coating, Transparent Waterproof Adhesive and Liquid Waterproof Membrane. Company product records specify applications including roofs, bathrooms, basements and exterior building protection.
Waterproof performance depends strongly on raw-material quality, formulation stability and production consistency. Direct cooperation with a manufacturer gives greater control over technical adjustment, batch records and application matching than sourcing through a trader.
According to Caruns company records, the manufacturing base covers 16,000 square meters, maintains more than 500 coating formulations, and has annual manufacturing capacity above 20,000 tons.
For customized waterproofing products, our process can cover:
Substrate and application analysis
Climate and moisture exposure evaluation
Performance requirement confirmation
Formula development
Sample testing
Packaging customization
Trial production
Mass production and shipment inspection
Caruns provides OEM and ODM development tailored to different climatic conditions and environmental compliance requirements.
Our production process includes mixing, dispersion, grinding, tinting, filtration and filling. Incoming materials are checked for solid content, viscosity, pH, fineness, moisture and environmental indicators.
Finished batches undergo testing for adhesion, hardness, water resistance, uniformity and stability. Quality management follows IQC, IPQC, FQC and OQC, covering raw materials, production, finished products and outgoing shipments.
Before bulk purchasing, confirm substrate type, waterproofing location, expected water exposure, construction method, required system thickness, quantity, packaging, lead time and technical documentation.
For international supply, Caruns supports compliance credentials including ISO9001, ISO14001, ISO45001, CE, RoHS, REACH, French A+ and German AgBB.
Waterproof coating is often preferred for complex surfaces and seamless application, while waterproof membranes are suitable where a defined barrier system is required. The final decision should be based on substrate conditions, project design, quality control and long-term waterproofing reliability.
