Product Overview
As the best
bituminous waterproofing coating in its segment, the JY-LRT Polymer Modified Bituminous Waterproofing Coating (Liquid Waterproof Roll) is a high-quality, water-based, high-solid-content solution developed by our trusted manufacturer at our china-based factory. Built on the foundation of water-based asphalt-based waterproof coatings, this product is precisely formulated using specialized equipment to blend grease road asphalt emulsion, water-based lotion, and custom additives.
Designed for practicality and performance, it features straightforward, easy-to-execute construction—while also delivering safe, consistent functionality even on damp substrates. A key strength lies in its excellent adhesion, which ensures reliable bonding to diverse common materials like concrete, wood, and asbestos board. For businesses or projects seeking a durable, versatile waterproofing solution, connect with us to learn about the competitive price tailored to your needs.
| Color | Black | Type | Single-component | Packaging form | Iron bucket |
| Physical state | Liquid | Specifications | 20 kg/barrel |
Product Features
Boasts unique waterproof performance, high elasticity and overall integrity—its coating is seamless and continuous for full-coverage protection.
Example: If your roof has tiny cracks or uneven surfaces, this seamless coating will adhere to every detail (no gaps like traditional waterproof rolls). Its high elasticity also stretches with the roof’s expansion/contraction (e.g., from 35℃ daytime heat to 10℃ nighttime cool) to avoid new cracks that cause rain leaks.
Delivers strong high-temperature resistance, low-temperature tolerance, and reliable aging resistance.
Example: In southern China’s summer, where roof surfaces hit 60℃+, this coating won’t soften/melt. In northern China’s -20℃ winter, it won’t turn brittle/crack. After 5+ years of outdoor exposure, it still blocks water (unlike cheap coatings that peel after 1 year).
Offers good elongation performance paired with excellent UV resistance.
Example: For exterior walls exposed to 8+ hours of daily sunlight, its high elongation follows minor wall movements (e.g., from foundation settling) without tearing. Its UV resistance also prevents fading/cracking—no need to re-coat for 4+ years (saving maintenance costs).
Is a single-component, water-soluble formula that can be easily applied via rolling or spraying.
Example: On a 100㎡ basement project, workers skip mixing multiple materials (saving 30 mins of prep). They use a roller for pipe corners or a sprayer for large floors—cutting application time by ~25% vs. multi-component coatings.
Features green, environmentally friendly properties; it enables simple construction and helps shorten the overall construction period.
Example: When waterproofing an indoor garage, this low-odor coating needs no extra ventilation (safe for on-site teams). Its fast-drying nature lets you lay floor tiles 24 hours later—trimming the waterproofing phase from 3 days to 1 day.
Application Scenario & Core Benefit Matching Table
| Application Scenario | Matching Product Advantages |
|---|
| Roofs | - Seamless, full-coverage coating (blocks rain leaks)
- High/low temperature resistance (adapts to extreme weather)
- Excellent UV resistance (resists long-term outdoor aging) |
| Basements | - Safe, effective performance on damp substrates (no extra drying for moderately damp surfaces)
- Strong adhesion to concrete (locks out underground moisture) |
| Garages | - Easy application via rolling/spray (covers large areas efficiently)
- Durable coating (withstands minor vehicle impact) |
| Floors | - Good elongation (adapts to minor floor settling without cracking)
- Reliable waterproof integrity (suitable for indoor/outdoor floors) |
| Kitchens & Bathrooms | - Seamless formula (blocks seepage from sinks/pipes)
- Eco-friendly, low-odor property (safe for enclosed high-humidity spaces) |
Performance Index
| No. | Item | Performance index |
|---|
| | L | H |
|---|
| 1 | Solid Content/% ≥ | 65 | 60 |
| 2 | Heat resistance/℃ | 80±2 | 110±2 |
| | No flow, sliding, or sinking |
| 3 | Impermeability | 0.1MPa,30min,No water seepage |
| 4 | adhesion/MPa ≥ | 0.30 |
| 5 | surface drying time/h ≤ | 8 |
| 6 | Internal drying time/h ≤ | 24 |
| 7 | Low temperature flexibility/℃ | Standard conditions | -15 | 0 |
| Alkali treatment | -10 | 5 |
| Heat treatment |
| UV treatment |
| 8 | Elongation at break/% ≥ | Standard conditions | 600 |
| Alkali treatment |
| Heat treatment |
| UV treatment |
Construction Method
- Base Cleaning: Prior to liquid roll waterproofing construction, thoroughly clean the base surface to remove dust, debris, or other contaminants.
- Base Layer Humidity Check: Ensure the base surface is dry, with its moisture content controlled below 8% (as a general requirement).
- Material & Tool Preparation: Prepare the liquid roll coating and matching construction tools, including brushes, rollers, scrapers, and spray guns.
- Primer Application: Evenly apply primer to the base surface (no missed areas), with a base coating thickness of 0.2–0.3mm. Wait for the primer surface to dry completely before proceeding.
- First Liquid Roll Coating: Use a brush, roller, or spray gun to apply the first coat of liquid roll. Maintain uniform coverage during application, avoiding issues like missed brushing, bubbles, or material accumulation. Allow the surface to dry (typically 1–2 hours).
- Multi-Pass Brushing: It is recommended to apply 2–3 coats total. Wait for the previous coat to fully dry before applying the next one; apply each coat in vertically intersecting directions to ensure even coverage.
- Joint Treatment: Joints and nodes (key waterproofing areas) should be reinforced with reinforced cloth or liquid roll-specific waterproof tape, then apply the liquid roll coating over the reinforced area.
Different Applications of Bitumen in Waterproofing
From Traditional Systems to Next-Generation Liquid Waterproof Rolls
Bitumen remains the most reliable and time-tested waterproofing material in the world. Today it is available in four main forms, each suited to specific project needs.
| System Type | Application Method | Seamless? | Typical Dry Film Thickness | Need Heating? | Ease & Safety | Best Applications |
|---|
| Bituminous Paint | Brush / Roller / Spray | Yes | 100–300 μm | No | ★★★★★ | Metal protection, rustproofing, marine, maintenance |
| Bituminous Membrane (Torch-on / Self-adhesive Rolls) | Torch / Peel-&-stick / Cold adhesive | No (overlaps) | 3–5 mm | Sometimes | ★★☆☆☆ | Flat roofs, podiums, tunnels, large horizontal areas |
| Hot-Applied Bituminous Coating | Heated kettle + trowel/squeegee | Yes | 4–10 mm | Yes (180–220°C) | ★☆☆☆☆ | Bridges, reservoirs, heavy-duty foundations |
| JY-LRT Polymer Modified Liquid Coating (Liquid Waterproof Roll) | Cold brush / roller / squeegee / airless spray | 100% Yes | 1.5–4.0 mm | No | ★★★★★ | Complex roofs, balconies, wet rooms, renovations, vertical walls, planters |
1. Bituminous Paint – Simple Protective Layer
- Cold-applied, solvent- or water-based
- Fast drying, excellent for metal & wood protection
- Ideal for pipelines, steel structures, boat hulls → Thin layer → mainly anti-corrosion & light waterproofing
2. Bituminous Sheet Membrane – The Classic Choice
- APP or SBS modified rolls with polyester/fiberglass reinforcement
- Torch-applied, self-adhesive or cold-glued
- 20–35 years proven durability → Best for large flat/low-slope roofs and below-grade works → Drawback: seams/overlaps and need for skilled torching team
3. Hot-Applied Bituminous Coating – Heavy Duty Traditional
- Requires melting in kettle (hot work)
- Very thick and robust when reinforced with fabric → Still used on bridges and industrial projects → Safety risks and slow application
4. JY-LRT Polymer Modified Bituminous Waterproofing Coating
The Modern “Liquid Waterproof Roll” – Best of All Worlds
✓ 100% cold-applied – no torch, no kettle, no fire risk ✓ Forms a thick (1.5–4 mm), fully seamless rubber-asphalt membrane ✓ Extraordinary elongation > 1,800% (excellent crack-bridging) ✓ Perfect adhesion to concrete, concrete, metal, old bitumen, wood, damp surfaces ✓ Fast curing – rainproof in 4–8 hours, fully cured in 24–48 hours ✓ Can be sprayed for super-fast coverage on large areas
Ideal for:
- Flat & green roofs (including zero-fall)
- Balconies, terraces & podium decks
- Bathroom & wet room waterproofing
- Basement & foundation walls
- Renovation over existing failed membranes
- Planters, ponds & water tanks
- Complex details, penetrations & upstands
Why JY-LRT is the Future of Bitumen Waterproofing
It delivers the trusted long-term performance of bitumen + the ease, safety and seamless finish that only a true liquid system can provide.
When you need guaranteed waterproofing without the hassle of torches, seams or hot works — JY-LRT Liquid Waterproof Roll is the ultimate professional choice.
Great Ocean Waterproof – Professional Waterproofing Solutions You Can Trust Contact us today for technical data sheets, application guides and project support.
What factors should I consider when choosing between bituminous membranes, coatings (like JY-LRT), or paints for my waterproofing project?
- When selecting bituminous waterproofing solutions, align the option with your project’s specifics—here’s how JY-LRT fits in:
- Type of Structure: Membranes work best for large, flat industrial roofs, while JY-LRT (a liquid waterproof roll coating) suits both large spaces (basements, garages) and detailed areas (kitchen/bathroom pipe joints) thanks to its seamless, adaptable application.
- Weather Exposure: JY-LRT handles harsh conditions (60℃+ heat, -20℃ cold) and UV exposure, making it ideal for outdoor roofs and indoor spaces. Membranes offer similar resilience but with higher upfront costs.
- Ease of Application: Membranes require professional installation, but JY-LRT (single-component, water-soluble) can be applied via brush/roller/spray—saving time for mid-sized projects.
- Cost Considerations: JY-LRT is a cost-effective pick for small (bathrooms) and medium (garages) jobs, with 5+ years of outdoor performance (vs. pricier membranes for large-scale industrial use).
How does JY-LRT perform in extreme weather (freezing temperatures or intense sunlight)?
- JY-LRT is built for tough climates:
- Freezing Temperatures: Its high elasticity stays flexible through -20℃ winter freeze-thaw cycles (common in northern regions), avoiding brittleness or cracking that causes leaks.
- Intense Sunlight/Heat: It resists softening/melting on 60℃+ summer roof surfaces, and its UV resistance prevents fading/cracking from prolonged sun exposure.
- This resilience makes it reliable for outdoor structures (roofs) and semi-outdoor areas (patios) year-round.
What maintenance practices maximize JY-LRT’s durability?
- To extend JY-LRT’s service life (5+ years outdoors, longer indoors):
- Routine Inspections: Check 1–2 times yearly (especially joints/nodes) for cracks/blisters—prioritize checks after heavy rain or extreme temperature swings.
- Debris/Water Removal: Clear leaves/dirt/standing water from surfaces (roofs, garages) regularly; unclog gutters to avoid water buildup that speeds up material breakdown.
- Prompt Repairs: Seal small cracks immediately with a thin JY-LRT coat (after cleaning) to prevent larger leaks.
How soon can I start subsequent work (e.g., laying tiles) after applying JY-LRT?
- Under standard conditions (25℃, 50% RH), the final JY-LRT coat dries completely in ~24 hours. You can safely lay tiles or proceed with other construction after this full-drying period (adjust timelines for more humid/hotter environments).
Can JY-LRT be applied on damp substrates, and what’s the moisture limit?
- Yes—JY-LRT works on moderately damp substrates (great for basements). However, the base layer’s moisture content must stay below 8% (per construction guidelines) to ensure strong adhesion and long-term performance.
How do I get a price quote for JY-LRT?
- As a professional manufacturer based in China, we offer project-tailored quotes for JY-LRT. Contact our factory with your project details (area size, application scenario) to get a competitive price for this best bituminous waterproofing coating.
About Us – Great Ocean Waterproof
Great Ocean Waterproof Technology Co., Ltd. (founded in 1999) is a national high-tech waterproofing manufacturer located in Taitou Industrial Zone, Shouguang City – the heart of China’s largest waterproofing material production base.
With a 26,000 m² modern factory and multiple automated production lines, we specialize in the research, development, and production of high-performance waterproofing systems, including polymer membranes, modified bituminous membranes, polyurethane coatings, polymer-cement (JS) coatings, cementitious crystalline coatings, spray-applied rubber asphalt, and innovative liquid-applied waterproofing products such as JY-LRT Polymer Modified Bituminous Waterproofing Coating.
All products are manufactured under strict ISO 9001 quality management standards, backed by a full in-house laboratory and certified by national authorities. Our materials are widely used in more than 20 provinces across China and exported to Southeast Asia, the Middle East, Africa, Europe, and South America.
For over 25 years, Great Ocean Waterproof has stayed committed to the principles of Integrity, Pragmatism, and Innovation, delivering reliable, cost-effective solutions and professional service to contractors, distributors, and project owners worldwide.
