BOSLAI Water-Based Polyurethane Waterproof Coating (PU waterproof coating) is an eco-friendly, high-molecular elastic waterproof material, which is non-toxic and odorless. It offers excellent adhesion and breathability. It has strong adhesion to concrete substrates, stone, and metal surfaces, with stable chemical properties. It can withstand long-term sunlight exposure, providing UV protection, and features high strength, large elongation, and good elasticity.
Single-component / Eco Friendly / OEM Accepted / UV Resistant / Brush or Sprayer Applied
APPLICATION RANGE – Water-Based Polyurethane Waterproof Coating
1.Building Surfaces: Roofs and terraces, Interior and exterior walls, Balconies.
2.Indoor Spaces: Bathrooms, Warehouses, Kitchens.
3.Special Structures: Basements, Pools, Water tanks.
4.Infrastructure: Tunnels, Bridges, Reservoirs.
PACKAGING & COVERAGE – Water-Based Polyurethane Waterproof Coating
| Specification: | 18kg/pail or 50kg/pail |
| Appearance: | Single component, viscous emulsion, color can be customized. |
| Coverage: | It is recommended to apply two coats, with each pail covering 13~15m2. |
| Warranty period: | More than 10 years. |
| Shelf Life: | 1 Year |
TECHNICAL DATA – Water-Based Polyurethane Waterproof Coating
| Item | Data |
| Tensile Strength, MPa ≥ | 6.74 |
| Elongation at Break, % ≥ | 352 |
| Low-Temp Flexibility | -35°C, no cracks |
| Water Resistance (0.3 MPa 0.5a) | 0.3 MPa, 120 minutes, Impermeable |
| Surface Drying, h | 8 |
| Thorough Drying, h | 23 |
| Bonding Strength, MPa | 1.2 |
| Water Absorption Rate, % | 4.3 |
Download Water-Based Polyurethane Waterproof Coating TDS (PDF)
TDS_Water-Based Polyurethane Waterproof Coating.pdf
Key Advantages of BOSLAI Polyurethane Waterproof Coating
BOSLAI water-based polyurethane waterproof coating offers 5 core advantages:
- UV resistance: It can withstand long-term exposure to sunlight, making it suitable for use in any outdoor environment without degradation or peeling.
- Weather resistance: Resistant to oxidation and moisture erosion, maintaining waterproofing effectiveness over the long term even in harsh climates.
- High elasticity: The coating film has a certain degree of elasticity (elongation at break ≥352%), adapting to minor substrate deformations and resisting cracking.
- Excellent waterproof ability: Effectively prevents water penetration, providing reliable waterproofing with impermeability tested at 0.3 MPa for 120 minutes.
- Customizable colors: BOSLAI supports OEM polyurethane waterproof coating of any color, such as blue, gray, red, etc., to match project aesthetics or brand requirements.
Packaging, MOQ, and Export Shipping
Standard packaging is 18kg, 20kg or 50kg pails. MOQ is 200 kg if you have a freight forwarder in China; otherwise the minimum shipment follows your shipping line’s requirement (around 2 CBM). Free samples are available so you can verify adhesion and film quality on your actual substrate before ordering.
Lead time is 4 days for standard stock; OEM orders take 7 days depending on packaging design. We ship with CIF, FOB, EXW with complete export documentation — TDS, MSDS, and Non-dangerous goods classification for smooth customs clearance.
OEM & Customization Service
Customization is available for product color, packaging design, and package sizes.
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FAQ
Q: What is water-based polyurethane waterproof coating?
Water-based polyurethane waterproof coating is an eco-friendly, single-component liquid membrane that cures into a seamless elastic waterproof layer. BOSLAI’s formula is non-toxic, odorless, UV resistant, and offers 352% elongation with strong adhesion to concrete, stone, and metal surfaces.
Q: Where can water-based PU waterproof coating be applied?
Typical applications include roofs and terraces, interior and exterior walls, balconies, bathrooms, kitchens, basements, pools, water tanks, tunnels, bridges, and reservoirs. Its UV resistance makes this PU waterproof coating suitable for exposed applications without a protective topcoat.
Q: How does water-based PU coating differ from solvent-based?
Water-based polyurethane waterproof coating is diluted with water, low-odor, and safer for enclosed spaces. It adheres without primer and can be sprayed over large areas. Solvent-based PU forms a denser film but releases VOCs and requires ventilation — choose based on the application environment and local regulations.
Q: What is the coverage and packaging?
Standard packaging is 18kg or 50kg pails. Apply two coats — each 18kg pail covers 13–15 m². Custom colors (blue, grey, red) and custom pail sizes are available for OEM clients building private-label product lines.
Q: Can you OEM water-based polyurethane coating?
Yes. BOSLAI supports private-label packaging, custom colors, custom formulation, and full export documentation (TDS, MSDS). Low-MOQ trial orders are welcome — test this polyurethane waterproof coating on your actual substrate before committing to bulk orders.
Q: What is the shelf life and warranty?
Shelf life is 12 months in unopened pails. The cured film carries a warranty period of more than 10 years, with surface drying in 8 hours and thorough drying in 23 hours under standard conditions.
Q: Can water-based polyurethane waterproof coating be used in tropical and cold climates, such as Indonesia and Russia?
Yes. BOSLAI water-based polyurethane waterproof coating is tested for extreme climates: low-temperature flexibility is certified at -35°C with no cracking, while the cured film withstands long-term UV exposure in tropical markets such as Indonesia. Whether your projects face hot-humid monsoon conditions or freezing winters, the coating stays elastic and watertight.
Q: How do I find a reliable polyurethane waterproof coating manufacturer?
Look for five things: (1) a real factory with in-house production, not a middleman; (2) OEM and custom packaging support; (3) complete export documents — TDS, MSDS, COA; (4) free samples for testing on your substrate; (5) proven export experience. BOSLAI, a water-based polyurethane waterproof coating manufacturer in China with a 10,000-ton facility, meets all five and supports private-label brands worldwide.
Why Distributors Choose BOSLAI Water-Based PU Coating?
Water-based polyurethane waterproof coating is a fast-growing SKU as more markets restrict solvent-based products. Distributors who stock it early capture contractors seeking low-odor, primer-free solutions for residential and commercial projects.
BOSLAI manufactures this liquid polyurethane waterproofing membrane in a 10,000-ton facility with batch-to-batch consistency. As a factory-direct water-based polyurethane coating manufacturer, we offer custom colors, private-label packaging, and full export documentation — you build your brand while we handle production and shipping.
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