Membrana impermeabilitzant de polímer autoadhesiva JY-ZNU [N]

Introducció del producte

The JY-ZNU Self-Adhesive Polymer Waterproofing Membrane [N] is a non-tire type waterproofing material designed for applications requiring moisture protection. It uses petroleum asphalt as the primary base, combined with SBS (styrene-butadiene-styrene) and SBR (styrene-butadiene rubber) as modifiers to enhance flexibility and adhesion properties.

The membrane features a cross-laminated polyethylene (PE) film or polyester (PET) film on the upper surface, along with a peelable silicon-coated isolation film on both the upper and lower surfaces. This configuration allows it to form a curled sheet that can be applied directly without additional adhesives in many cases.

Available specifications include:

This product aligns with common industry standards for self-adhesive polymer-modified asphalt membranes, which are typically used in roofing, basements, and other construction scenarios where waterproofing is needed. Installation involves peeling the isolation films and pressing the membrane onto prepared surfaces.

Característiques del producte

The JY-ZNU self adhesive waterproofing membrane offers several key performance characteristics based on its design and materials:

• Alta força d'enllaç: The adhesive resin enhances the bonding strength of the coil, ensuring firm attachment to the base layer while prioritizing safety, environmental friendliness, and ease of use.
• Strong Initial Adhesion: At temperatures above 5°C, it achieves firm bonding without requiring heating equipment, maintaining safety, environmental considerations, and convenience.
• Long-Lasting Adhesion: Provides durable adhesion with no detachment or water leakage from the base layer, including self-bonding at lap joints that matches the lifespan of the roll material.
• High Tensile Strength: Features tensile strength of at least 350N/50mm and elongation of 30% or more, offering adaptability to base shrinkage, deformation, and cracking.
• Wide Temperature Range: Resists flow at high temperatures up to 70°C and avoids cracking at low temperatures down to -20°C, supporting use across varied conditions.
• Excellent Self-Healing Ability: Demonstrates capability to self-heal fine cracks resulting from external stress.

Índex de rendiment

Aplicació

The JY-ZNU Self-Adhesive Polymer Waterproofing Membrane [N] serves as a self-adhesive waterproofing membrane applicable to non-exposed roofs and underground structures, such as open-cut subways. It also supports waterproofing in pools, water channels, and related installations, making it a practical self adhesive waterproofing membrane for roof projects where open flames cannot be used.

Mètode de construcció

The construction method for the JY-ZNU Self-Adhesive Polymer Waterproofing Membrane [N] follows a sequential process: grassroots treatment, additional layer construction, self-adhesive surface construction, exhaust compaction, closed water test, and construction of a protective layer.

• Tractament de base: Begin by cleaning the surface to ensure the base is solid, flat, and free of debris. Apply a base treatment agent evenly across the area, avoiding any missed or exposed spots. Allow the surface to dry completely before proceeding with the roll material.
• Additional Layer Construction: Apply extra treatment to specific areas such as internal and external corners, pipe roots, eaves gutters, and deformation joints. Pre-cut the rolls to the required size and shape, then lay them onto the base layer. For sections that are difficult to adhere, use heating equipment to assist in bonding the coil.
• Large-Scale Construction: Once the base treatment agent has dried, mark reference lines on the surface. Lay the roll material in a timely manner by first fixing the starting end and gradually unfolding it. As you proceed, uncover the isolation material and position the roll along the reference line while rolling it out.

This self adhesive membrane waterproofing requires careful exhaust compaction during installation: At the same time as laying, remove any air pockets by pressing or rolling the material to ensure full contact and adhesion.

• Closed Water Experiment: Perform a closed water test in line with the construction plan requirements to verify the integrity of the waterproofing.
• Construction of Protective Isolation Layer: Equip the outer surface of the waterproof layer with a protective layer, following relevant specifications or design guidelines.

As a self adhesive bituminous waterproofing membrane, this product emphasizes dry, clean surfaces and proper sequencing to achieve effective results in non-exposed or underground applications.

Comparison of JY-ZNU Self-Adhesive Polymer Waterproofing Membrane to Torch-Applied Membranes

The JY-ZNU membrane is a self-adhesive type, using modified asphalt with SBS and SBR for flexibility and bonding without heat. Torch-applied membranes, often made from similar modified bitumen like APP or SBS, require heating with a propane torch to melt the material for adhesion. Below is a side-by-side comparison based on key factors such as installation, safety, durability, cost, and applications.

Overall, the JY-ZNU self-adhesive option prioritizes ease and safety, making it a practical choice for straightforward waterproofing tasks, while torch-applied membranes excel in robustness for more challenging or long-term needs. Selection depends on project specifics, such as environmental conditions and budget.

Application Cases

The JY-ZNU membrane, as a self-adhesive polymer-modified asphalt material, is commonly used in various construction scenarios where flame-free installation is required. Below are practical application examples drawn from typical industry uses.

Underground Basement Waterproofing 

In residential and commercial basement projects, the membrane is applied to concrete foundation walls and floors to prevent groundwater ingress. Surface preparation involves cleaning and priming the substrate, followed by peeling the release film and rolling the membrane for full adhesion. It handles minor substrate movement and provides lasting protection against moisture, often combined with a protective board before backfilling.

Non-Exposed Flat Roof Waterproofing 

For flat or low-slope roofs on buildings like warehouses or extensions, the membrane serves as a primary layer under insulation or ballast. Installation starts with base treatment, then unrolling and pressing the sheets with overlaps sealed by the self-adhesive properties. It suits areas where torching is restricted, offering reliable performance under protective coverings.

Pool and Water Channel Waterproofing 

In swimming pools, water reservoirs, or channels, the membrane lines the concrete structure to contain water without leaks. The cold-applied method allows safe installation in confined or flame-prohibited spaces. Additional layers at joints and corners ensure integrity, with a final protective finish applied over the membrane.

Underground Tunnel and Subway Projects 

For open-cut subway sections or utility tunnels, the membrane is used on walls and slabs to block seepage. It adheres directly to prepared surfaces, accommodating the wide temperature range and providing self-healing for small cracks. This approach is common in urban infrastructure where safety and speed are priorities.

Ressenyes de clients

• John from USA: I used this membrane for my basement waterproofing project last summer. It stuck well to the concrete walls after priming, and I didn't need any heat or special tools, which was a plus since I'm not a pro. It's held up through some heavy rains without leaks so far, though I noticed a few air bubbles during installation that I had to roll out carefully. Decent value for the price.
• Emma from UK: Applied it to our flat roof extension. The self-adhesive feature made it straightforward to lay down, especially in cooler weather above 5°C as recommended. No issues with detachment after six months, and it seems to handle the British dampness okay. It's not the cheapest option out there, but it saved us on labor costs compared to hiring someone for torch-on stuff.
• Carles d'Espanya: We installed this on an underground garage floor. The material unrolled evenly, and the adhesion was solid once we cleaned the surface properly. It has good flexibility for minor cracks, but in our hot climate, we had to work quickly to avoid it getting too sticky. Overall, it's performed as expected without any water seepage.
• Sophie from Australia: Used it for pool surrounds where flames aren't allowed. Easy to cut and fit around edges, and the PET surface option worked well with our tiles. After a year, no peeling or cracking from the sun exposure, though we added a protective layer on top. It's reliable, but make sure the base is completely dry or it won't bond right.
• Hans from Germany: For our balcony renovation, this membrane was a practical choice. Strong initial stick without heating, and it adapted to some base movement without issues. Tensile strength seems adequate, but I found the roll a bit heavy to handle alone. It's been leak-free through winter freezes, matching what we needed for non-exposed areas.
• Maria from Canada: Tried it on water channels in a rural property. The wide temperature range helped with our cold snaps down to -20°C—no cracking noted. Installation was convenient, but we had to be careful with overlaps to ensure long-lasting adhesion. It's held up against snow melt, though I'd suggest extra sealant at joints for peace of mind. Good for the money spent.

Preguntes freqüents

What is the JY-ZNU Self-Adhesive Polymer Waterproofing Membrane [N]? This is a non-tire self-adhesive polymer-modified asphalt membrane made with petroleum asphalt as the base, enhanced by SBS and SBR modifiers. It features a cross-laminated PE or PET film on the upper surface and peelable silicon-coated isolation films on both sides, forming a curled sheet for waterproofing applications.

What are the available specifications for this membrane? The membrane comes in thicknesses of 1.2 mm, 1.5 mm, or 2.0 mm; lengths of 15 m or 20 m; and a standard width of 1.0 m. Surface options include PE or PET, with a separator underface.

How does it compare to torch-applied waterproofing membranes? Unlike torch-applied membranes that require heating with a flame for adhesion, this self-adhesive version bonds without heat, reducing fire risks and simplifying installation. It offers similar durability in tensile strength and elongation but may need careful surface prep to avoid air bubbles, while torch-applied ones often provide stronger long-term bonds in exposed conditions.

What applications is this membrane suitable for? It is designed for non-exposed roofs, underground projects like open-cut subways, pools, water channels, and similar structures where open flames are not allowed. It's not recommended for areas requiring flame-based installation.

How do I install the JY-ZNU membrane? Start with grassroots treatment by cleaning and priming the base surface until dry. Apply additional layers to corners and joints, then lay the membrane by peeling the isolation film, aligning along reference lines, and compacting to remove air. Conduct a closed water test and add a protective layer as needed. No heating is typically required above 5°C.

What temperature range can this membrane withstand? It performs without flowing at high temperatures up to 70°C and avoids cracking down to -20°C, making it suitable for a variety of climates, though installation is best above 5°C for optimal adhesion.

Does it require any special tools or equipment? Basic tools like rollers for compaction and cutters for sizing are sufficient. Heating equipment may be used for tricky spots, but no torches or advanced setup is needed, unlike some other membranes.

How durable is the membrane, and what about its lifespan? It provides high tensile strength (≥350N/50mm) and elongation (≥30%), with self-healing for fine cracks and long-lasting adhesion matching the material's life. Actual lifespan depends on installation quality and conditions, often lasting several years in proper non-exposed uses, but it's not specified with a formal warranty here.

Sobre Shandong Great Ocean Waterproof Technology Co., Ltd.

Shandong Great Ocean Waterproof Technology Co., Ltd. (formerly Weifang Juyang New Waterproof Materials Co., Ltd.) was founded in 1999 and is situated in Tai Tou Town, Shouguang City – recognized as China's largest waterproof materials production hub.

The company spans 26,000 square meters and runs several advanced production lines for waterproof membranes, sheets, and coatings. Its diverse portfolio includes polymer and modified asphalt waterproofing materials, self-adhesive membranes, root-resistant membranes, drainage boards, and recobriment impermeable de poliuretà.

Backed by strong technical expertise, modern equipment, and comprehensive quality testing facilities, the company ensures stable and reliable product quality, certified by national authorities. Its products are distributed across more than 20 provinces in China and exported to multiple countries, consistently earning positive feedback from customers.

Driven by the principles of integrity, pragmatism, and innovation, Great Ocean Waterproof is committed to providing dependable products and quality service to partners worldwide.