Polymer Modified Bitumen Waterproof Coating - 10yr Proven Factory

Q: How to find a reliable waterproof coating supplier for your project?

Evaluate suppliers on these five points: TDS & specifications — Should be available before you order, not after. Specialization — A focused waterproofing supplier has better formulation expertise than a general chemical trader. Samples — Test on your actual substrate before committing to bulk. OEM capability — Custom color, packaging, and labeling if you're building your own brand. Export compliance — MSDS, DG classification, and customs documentation for smooth international shipping. At BOSLAI, we provide downloadable TDS and product specifications, support sample shipping and OEM customization, and have export experience across global markets—so you can verify quality firsthand through samples.

BOSLAI Polymer Modified Bitumen Waterproof Coating (As known as Liquid Asphalt Waterproofing Membrane or Liquid Rubber Waterproofing Paint) is a highly elastic waterproof coating made from emulsified asphalt as the base material, modified and toughened with aqueous high-molecular polymer, and enhanced with mineral materials. It is produced through a scientific formula. The coating is highly elastic, adhesive, and UV-resistant. It is simpler and more convenient than traditional torch on membrane, it’s also called liquid waterproofing membrane. Additionally, it is not restricted by the complex shapes of the base layer and can form a continuous, seamless, high-elastic waterproof membrane.

Single-component / Eco friendly / OEM Accepted / Weather resistance / Excellent Elasticity

Where Can BOSLAI Polymer Modified Bitumen Waterproof Coating Be Applied?

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.

What Are the Packaging Options, Coverage Rates, and Warranty?

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

What Are the Technical Specifications?

Item	Data
Solid Content, %	51
Heat Resistance	No flow, sliding, or dripping at 110°C
Elongation at Break, %	1071
Low-Temperature Flexibility	No cracks at -35°C
Surface Drying, h	8
Thorough Drying, h	23
Water Resistance	0.10 MPa, 30 minutes: No water leakage
Bonding Strength, MPa	0.35

TDS_Polymer Modified Bitumen Waterproof Coating.pdf

TDS_Polymer Modified Bitumen Waterproof Coating Download

What are the key features and advantages of BOSLAI Modified Bitumen Waterproof Coating?

As one of the premier choices for roof waterproof coating, BOSLAI water-based polyurethane waterproof coating offers 6 core advantages that make it versatile for both indoor and outdoor applications:

Strong adhesion: It bonds firmly to concrete surfaces, forming an elastic and weather-resistant waterproof membrane.
High elasticity and weather resistance: It has excellent weather resistance, with higher strength and better durability than most general waterproof coatings, that is why it is called liquid rubber waterproofing paint.
Wide temperature adaptability: Effective in both low and high temperatures, with stable performance.
UV-resistant: It can withstand prolonged exposure to sunlight without cracking.
Wide applicability: Suitable for both wet and dry surfaces, with strong bonding strength.
Convenient to use: Simply open the lid and stir before use.

Can I Customize the Product?

Yes! Customization is available for product color, packaging design, and package sizes.

Request Free Sample

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Contact us

Address

Building 12, Yun Chao Fu, Hangzhou City, Zhejiang Province, China.

Phone (Whatsapp/wechat)

+86 15231151892
+86 15906641341

info@boslaiwaterproof.com

FAQ

Can water-based bitumen waterproof coating be applied on wet surfaces?

Yes. BOSLAI polymer modified bitumen waterproof coating is water-based and can be applied on slightly damp cement substrates without waiting for full surface dryness. No standing water should be present. This makes it practical for basement and ground-level applications where drying time is limited.

Is this bitumen coating suitable for outdoor use and UV exposure?

Yes. This product is UV-resistant and can withstand prolonged sunlight exposure without cracking or degradation. It can be left exposed on rooftops, terraces, and exterior walls without a protective covering. It also resists standing water for up to 20 days, making it reliable for flat roof areas after rain.

What is the minimum application temperature for this waterproof coating?

The recommended application temperature is 5°C to 35°C. Within this range, the coating forms a proper film with optimal adhesion and flexibility. It passes low-temperature flexibility testing at -35°C with no cracks, and heat resistance testing at 110°C without flow or dripping — making it suitable for both cold and hot climate zones.

How many coats are required, and what is the recommended coverage?

Two coats are recommended for standard waterproofing applications. Each 18kg pail covers approximately 13–15 m² per coat. For high-stress areas (basements, tunnels, long-term water exposure), three coats may be required. Allow 4 hours for surface drying and 8 hours for thorough drying between coats.

Can I customize the packaging, branding, and label design?

Yes. We offer OEM and private label services including custom pail sizes (20kg or 50kg), branding, and label design. We have export experience across Southeast Asia, the Middle East, Africa, Europe, and North America. Send us your target market and packaging requirements for a customized quotation.

How to find a reliable waterproof coating supplier for your project?

Evaluate suppliers on these five points:
TDS & specifications — Should be available before you order, not after.
Specialization — A focused waterproofing supplier has better formulation expertise than a general chemical trader.
Samples — Test on your actual substrate before committing to bulk.
OEM capability — Custom color, packaging, and labeling if you’re building your own brand.
Export compliance — MSDS, DG classification, and customs documentation for smooth international shipping.
At BOSLAI, we provide downloadable TDS and product specifications, support sample shipping and OEM customization, and have export experience across global markets—so you can verify quality firsthand through samples.

What are the application methods and substrates this coating bonds to?

BOSLAI bitumen waterproof coating can be applied by sprayer, roller, brush, or scraper. It bonds directly to concrete, metal, tiles, glass, wood, and existing coating layers — no primer required on standard cement surfaces. It can be diluted with water for easier application on large areas. Compatible with fiber mesh for reinforced waterproofing on high-stress zones.

Why Choose BOSLAI as Your Bitumen Waterproof Coating Supplier?

As a specialized manufacturer and global exporter of polymer modified bitumen waterproof coating, BOSLAI has supplied bituminous waterproof coating to distributors and contractors across Southeast Asia, the Middle East, Africa, Europe, and North America. Whether you are sourcing liquid waterproofing membrane for a residential project or bulk-ordering bitumen waterproof coating for infrastructure development, we provide consistent quality, competitive pricing, and full export documentation support.

Unlike general chemical traders, BOSLAI focuses exclusively on waterproofing materials. This means deeper formulation expertise, stricter quality control, and a product line built around real jobsite conditions. Our polymer modified bitumen waterproof coating is manufactured to meet international performance standards, with a solid content of 51%, elongation at break of 1071%, and heat resistance up to 110°C.

Every shipment includes MSDS and dangerous goods documentation for smooth customs clearance. We coordinate with experienced freight forwarders to ensure your bitumen waterproof coating arrives on time, compliant with local import regulations. We also support OEM and private label services — custom packaging sizes, color matching, and label design. Download our TDS or request a free sample to test on your substrate before placing a bulk order.