Polyurethane Waterproof Coating Manufacturer
Single-component, two-component and water-based polyurethane waterproof coatings for roofing, basement, concrete and construction waterproofing applications. OEM, private label and bulk supply available from Great Ocean Waterproof in China.
Our Polyurethane Waterproof Coating Products
Great Ocean manufactures single-component, two-component and water-based polyurethane waterproof coatings for different construction and waterproofing requirements. Each system has its own application characteristics, performance and recommended use. Explore the products below or contact our team for product selection, technical data, samples, OEM options and quotation.
Polyurethane Waterproof Coating for Wholesale & OEM
Great Ocean is a waterproofing materials manufacturer in China, integrating product development, manufacturing and supply. We manufacture polyurethane waterproof coatings for distributors, importers, construction material brands, contractors and project buyers.
Our polyurethane coating range includes single-component, two-component and water-based systems. OEM and ODM cooperation is available, with packaging, branding and selected product options customizable according to customer requirements.
Manufacturer & Product Supply
Great Ocean operates waterproof coating manufacturing facilities in China and supplies polyurethane waterproof coatings for international distributors, importers, contractors and construction material brands.
OEM & Customization
Great Ocean supports OEM and ODM cooperation for waterproofing products. Packaging, branding and selected product specifications can be customized according to customer and order requirements.
Technical Documents & Support
Product-specific technical documents are available to support product evaluation, project selection and purchasing decisions.
| Procurement Information | Details |
|---|---|
| Manufacturer | Great Ocean Waterproof Technology Co., Ltd., China |
| Product Range | Single-component, two-component and water-based polyurethane waterproof coatings |
| OEM / ODM | Available |
| Customer Branding | Available for OEM / ODM cooperation |
| Packaging Customization | Available according to product requirements |
| Color Customization | Available for selected products |
| TDS / SDS | Available |
| Product Specifications & Test Documentation | Available according to product and project requirements |
Key Advantages of Polyurethane Waterproof Coating
Polyurethane waterproof coatings are liquid-applied systems designed to form a continuous waterproofing layer over properly prepared substrates. Performance varies by formulation, so product selection should be based on the substrate, exposure conditions, required membrane thickness and project specification.
Seamless Liquid-Applied Waterproofing
Applied as a liquid, polyurethane coatings can form a continuous waterproofing layer around corners, joints and complex construction details.
Flexibility and Movement Accommodation
Selected polyurethane systems provide flexibility and elongation that can help accommodate normal substrate movement. Specific performance values should be confirmed in the TDS of the selected product.
Different Formulations for Different Projects
Great Ocean offers single-component, two-component and water-based polyurethane waterproof coating systems for different application and construction requirements.
Application on Compatible Substrates
Depending on the selected product, polyurethane coatings may be used on compatible concrete and other specified substrates. Substrate preparation and primer requirements should follow the relevant product TDS.
Crack Bridging and Adhesion
Polyurethane systems provide exceptional crack bridging, spanning micro-cracks and accommodating structural movements without failure. Their strong adhesion bonds seamlessly to various substrates like concrete, metal, and wood, ensuring a reliable seal even on uneven or damaged surfaces, reducing the risk of leaks.
Flexibility
Offering high elasticity and elongation, polyurethane waterproofing remains flexible across a wide temperature range, preventing cracking due to thermal expansion or contraction. This adaptability makes it suitable for dynamic environments, such as rooftops or bridges, where movement is common.
Easy Application
Application is straightforward and versatile, with liquid formulations that can be sprayed, brushed, or rolled on, forming seamless membranes without joints. Quick curing times and low-odor options allow for minimal disruption, making it accessible for both professionals and DIY projects.
Durability and Longevity
Known for their robustness, polyurethane coatings resist UV rays, chemicals, abrasion, and weathering, delivering long-term protection that can last 10-20 years or more with proper maintenance. This durability minimizes repair needs, offering cost-effective solutions for demanding applications.
How to Apply Polyurethane Waterproof Coating
Polyurethane waterproof coatings form a seamless and flexible waterproofing layer and are widely used for roofs, concrete structures, basements, wet areas and other construction applications. However, application requirements vary between single-component, two-component and water-based polyurethane systems. Substrate condition, primer requirements, coating consumption, film thickness, recoat interval and curing time should always follow the technical data sheet of the selected product.
For concrete waterproofing projects, proper substrate preparation and product selection are particularly important. You can learn more about substrate considerations, typical applications and system selection in our guide to polyurethane waterproof coating for concrete.
The following steps provide a general application overview. Exact procedures should follow the TDS and project requirements for the selected polyurethane coating system.
1. Surface Preparation
The substrate should be structurally sound, clean and free from dust, oil, loose particles and other contaminants that may affect adhesion. Cracks, holes and uneven areas should be repaired before coating application. Acceptable substrate moisture conditions vary by product, so always check the relevant technical data sheet before application.
2. Priming
Primer requirements depend on the selected polyurethane coating, substrate type and project conditions. Some systems require a compatible primer to improve adhesion, while certain products may be applied directly to properly prepared substrates.
3. Detail Treatment
Pay particular attention to corners, joints, penetrations, drains and other areas where movement or water concentration may occur.
Depending on the waterproofing system and project design, additional coating, reinforcing fabric or other detail treatment may be required at these locations.
4. Coating Application
Prepare the selected product according to its technical instructions. For two-component polyurethane systems, mix the components at the specified ratio. Single-component and water-based systems should be prepared and applied according to their respective TDS.
Apply the coating evenly using the recommended roller, brush, squeegee or other suitable application method specified for the product.
Coverage & Thickness: Follow the recommended consumption and film thickness stated in the selected product TDS. Required thickness may vary depending on the product, number of coats and project specification.
5. Additional Coat and Recoating
Where multiple coats are required, apply the next coat after the previous layer has reached the condition specified in the product TDS. Recoat intervals vary depending on the polyurethane formulation, temperature, humidity and film thickness.
Apply subsequent coats evenly and ensure that the completed waterproofing layer meets the required system thickness.
6. Curing and Protection
Allow the completed waterproofing layer to cure according to the product requirements before exposure to water, covering, backfilling or other subsequent construction work. Curing time varies by product formulation and environmental conditions.
Applications of Polyurethane Waterproofing
Polyurethane waterproof coatings are used across a range of construction applications where a seamless and flexible waterproofing layer is required. Suitable applications depend on the selected formulation, substrate conditions and project requirements. Great Ocean offers single-component, two-component and water-based polyurethane systems for different waterproofing needs.
Roofing Systems
Polyurethane coatings can be used in selected roof waterproofing systems to form a seamless protective membrane around details, joints and complex roof areas. Product selection should consider substrate type, exposure conditions, required membrane thickness and whether additional surface protection is needed. Learn more about polyurethane waterproof coating for roof.
Wood Surfaces
Certain polyurethane waterproofing systems may be suitable for compatible wood-based substrates when specified for the application. Substrate preparation, adhesion, movement and exposure conditions should be evaluated before product selection. See our guide to polyurethane waterproof coating for wood for application considerations.
Green Roofs and Planters
Polyurethane waterproofing systems may be considered for selected green roof and planter applications where a continuous waterproofing layer is required. Product suitability, protection layers, drainage design and root-resistance requirements should be confirmed according to the selected product and project specification.
Basements and Foundations
Polyurethane waterproof coatings can be considered for selected basement, foundation and below-grade waterproofing applications where a continuous liquid-applied membrane is required. Product selection should take into account substrate moisture, water exposure, protection layers and project waterproofing specifications.
Not sure which polyurethane waterproof coating is suitable for your project? Send us your substrate, application, required standard and project conditions, and our team can help identify the appropriate product system.
Application Case Studies
Case Study 1: Rooftop Waterproofing for Commercial Building in Shanghai
Project Overview: A large commercial complex in Shanghai faced recurring leaks on its flat rooftop due to heavy rainfall, thermal expansion cracks, and urban pollution. The 5,000㎡ roof area required a robust solution to handle extreme weather variations.
Challenge: The existing bitumen membrane was deteriorating rapidly, leading to frequent water ingress, interior damage, and high maintenance costs during monsoon seasons. Temperature fluctuations caused cracking, and solvent odors were restricted in the densely populated area.
Solution: Applied JY-DPU Double Components Polyurethane Waterproof Coating to create a seamless, flexible membrane. Its high-solids, cold-applied formula ensured no solvent emissions, while superior elasticity accommodated structural movements. Technical support included customized installation guidelines for optimal adhesion on the weathered substrate.
Results: No leaks reported after two years, with enhanced UV resistance and ponding water tolerance extending the roof’s lifespan by 10+ years. The quick 24-hour curing minimized downtime, saving the client on repair costs and earning praise for eco-friendly performance in a high-traffic urban environment.
Case Study 2: Basement Sealing for Residential Development in Beijing
Project Overview: A new residential high-rise in Beijing required reliable waterproofing for underground parking and basements, covering over 10,000㎡ prone to groundwater seepage and soil pressure.
Challenge: High water table, constant moisture, and structural settling risked flooding, mold growth, and corrosion of reinforcements, complicating compliance with green building standards in a humid climate.
Solution: Utilized JY-951 Waterborne Polyurethane Waterproof Coating for its low-VOC, odorless application. The single-component system was brushed on concrete walls and floors, forming an impermeable barrier with excellent adhesion and root resistance for adjacent green areas. Detailed application guides ensured compatibility with existing materials.
Results: The basements remained completely dry through multiple rainy seasons and harsh winters, preventing mold and corrosion. The project met environmental certifications, with the developer noting a 30% reduction in labor time due to quick drying and ease of use, plus long-term durability against weathering and chemical exposure.
Technical Data, Testing & Documentation
Technical requirements for polyurethane waterproof coatings vary by product formulation, application and destination market. Great Ocean can provide product-specific technical information to help distributors, contractors and project buyers evaluate the appropriate waterproofing system.
Product-specific technical documentation and available test reports can be provided upon request. If your project requires testing according to ASTM, GB, EN or another specified standard, please send us the required standard or technical specification for confirmation.
Contact our technical team for product specifications, available test documentation and project-specific testing requirements.
Frequently Asked Questions
What types of polyurethane waterproof coatings does Great Ocean manufacture?
Great Ocean offers single-component, two-component and water-based polyurethane waterproof coating systems. Product selection depends on the substrate, application conditions and project requirements.
What is the difference between single-component and two-component polyurethane waterproof coating?
Single-component and two-component polyurethane systems differ in preparation, application and technical performance. Two-component systems require the components to be mixed according to the specified ratio, while single-component products are supplied ready for application according to their TDS.
Do you provide OEM or ODM polyurethane waterproof coatings?
Yes. OEM and ODM cooperation is available for selected polyurethane waterproof coating products. Packaging, branding and customization requirements can be discussed according to the product and order requirements.
Are TDS and SDS available?
Yes. Product-specific TDS and SDS can be provided for polyurethane waterproof coating products.
How do I choose the right polyurethane waterproof coating?
Send us your substrate, application, required standard and project conditions. Our team can help identify the appropriate polyurethane waterproof coating system.
How is polyurethane waterproof coating pricing determined?
Pricing depends on the selected product, specification, order quantity, packaging requirements and trade terms. Please send your requirements for quotation.
