High-strength tear-resistant waterproof roll
By combining a multi-layered composite structure with a hot-melt process, the mechanical strength and tear resistance of the waterproof membrane are improved, solving the problem of easy tearing of existing waterproof membranes and achieving high strength, durability, and simplified construction.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-27
- Publication Date
- 2026-04-03
AI Technical Summary
Existing waterproof membranes have low strength, are prone to breakage, have a short service life, and poor stability, resulting in frequent tearing and deformation, requiring manpower and material resources for repair, and causing serious waste of resources.
It adopts a multi-layer composite structure, including a protective layer, upper and lower reinforcing layers, a reinforcement layer, a waterproof layer, a self-adhesive layer, and a release layer, which are seamlessly bonded through a hot melt process. The polyester base and glass mesh are used to enhance mechanical strength and tear resistance, while butyl rubber pressure-sensitive adhesive provides rapid bonding.
It improves the tear resistance and durability of waterproof membranes, enhances mechanical strength, simplifies the construction process, avoids the delamination and aging problems of traditional adhesives, and improves the reliability of waterproofing projects.
Smart Images

Figure CN224075227U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the technical field of building construction, and in particular to a high-strength, tear-resistant waterproof membrane. Background Technology
[0002] Waterproof membranes are mainly used in building walls, roofs, tunnels, highways, landfills, etc., to resist external rainwater and groundwater seepage. They are flexible building materials that can be rolled up and serve as a leak-proof connection between the foundation and the building. They are the first line of defense for waterproofing the entire project and play a vital role in the overall project.
[0003] The current waterproof membrane has low strength, is easy to break, has a short service life, and poor stability. As a result, it is prone to tearing and deformation, requiring manpower and material resources for repair, which leads to a waste of funds and resources and thus cannot meet market demand. Utility Model Content
[0004] To address the problems mentioned in the background section, this application provides a high-strength, tear-resistant waterproof membrane.
[0005] This application provides a high-strength, tear-resistant waterproof membrane, employing the following technical solution: the membrane is uniformly wound around the outer circumference of a roll. The membrane includes a protective layer, two upper reinforcing layers fixedly connected below the protective layer, an upper reinforcement layer fixedly installed between the two upper reinforcing layers, a waterproof layer fixedly connected below the two upper reinforcing layers and the upper reinforcement layer, two lower reinforcing layers fixedly connected below the waterproof layer, a lower reinforcement layer fixedly connected between the two lower reinforcing layers, a self-adhesive layer fixedly connected below the two lower reinforcing layers and the lower reinforcement layer, and an isolation layer fixedly connected below the self-adhesive layer.
[0006] Optionally, the protective layer, upper reinforcing layer, upper strengthening layer, waterproof layer, lower reinforcing layer, lower strengthening layer, self-adhesive layer, and isolation layer are seamlessly bonded together by a hot-melt process.
[0007] Optionally, the two upper reinforcing layers and the two lower reinforcing layers are polyester base materials.
[0008] Optionally, the upper and lower reinforcing layers are glass meshes.
[0009] Optionally, the self-adhesive layer is butyl rubber pressure-sensitive adhesive.
[0010] In summary, this utility model has the following beneficial technical effects:
[0011] 1. The outermost protective layer provides puncture resistance, abrasion resistance, and chemical corrosion resistance, protecting the internal structure from mechanical damage and chemical erosion. The upper and lower reinforcing layers use a polyester base, giving the roll high tensile strength and deformation resistance, effectively dispersing damage caused by base layer cracking or external puncture. A glass mesh reinforcement layer is fixedly installed between the two reinforcing layers, significantly improving tear resistance, while also enhancing high-temperature resistance through heat reflection and flame retardancy via the mesh structure.
[0012] 2. The waterproof layer ensures reliable waterproofing and prevents liquid water penetration. The self-adhesive layer uses butyl rubber pressure-sensitive adhesive, providing rapid bonding without open flame or adhesives, simplifying the construction process. The isolation layer prevents the self-adhesive layer from sticking together during storage or transportation. Attached Figure Description
[0013] Figure 1 This is a schematic diagram of the overall structure in an embodiment of this application;
[0014] Figure 2 This is a schematic diagram of the structure of the roll material in the embodiments of this application;
[0015] Figure 3 This is a schematic diagram of the structure of the side of the roll material in an embodiment of this application;
[0016] Figure 4 This is a schematic diagram of the structure of the roll material analysis in the embodiments of this application;
[0017] Figure 5 This is a schematic diagram of the structure of the side of the roll material in the embodiments of this application.
[0018] Reference numerals: 1. Roll material; 101. Protective layer; 102. Upper reinforcing layer; 103. Upper reinforcement layer; 104. Waterproof layer; 105. Lower reinforcing layer; 106. Lower reinforcement layer; 107. Self-adhesive layer; 108. Release layer; 2. Roll. Detailed Implementation
[0019] The following is in conjunction with the appendix Figures 1-5 This application will be described in further detail.
[0020] This application discloses a high-strength tear-resistant waterproof membrane, wherein the membrane 1 is evenly wound around the outer periphery of the roll 2;
[0021] The roll material 1 includes a protective layer 101, two upper reinforcing layers 102 are fixedly connected below the protective layer 101, an upper reinforcing layer 103 is fixedly installed between the two upper reinforcing layers 102, a waterproof layer 104 is fixedly connected below the two upper reinforcing layers 102 and the upper reinforcing layer 103, two lower reinforcing layers 105 are fixedly connected below the waterproof layer 104, a lower reinforcing layer 106 is fixedly connected between the two lower reinforcing layers 105, a self-adhesive layer 107 is fixedly connected below the two lower reinforcing layers 105 and the lower reinforcing layer 106, and an isolation layer 108 is fixedly connected below the self-adhesive layer 107.
[0022] It should be noted that the roll material 1 is a multi-layer composite waterproof material, which consists of the following layers from top to bottom: protective layer 101, upper reinforcing layer 102, upper reinforcement layer 103, waterproof layer 104, lower reinforcing layer 105, lower reinforcement layer 106, self-adhesive layer 107, and isolation layer 108. Through material composite and mechanical optimization, a balance is achieved between waterproof performance, mechanical strength, and construction efficiency.
[0023] Please see Figures 2-5 The protective layer 101, upper reinforcing layer 102, upper reinforcement layer 103, waterproof layer 104, lower reinforcing layer 105, lower reinforcement layer 106, self-adhesive layer 107, and isolation layer 108 are seamlessly bonded together by a hot-melt process.
[0024] It should be noted that in the multi-layer composite structure of roll material 1, the seamless bonding through hot-melt process plays a crucial role in achieving molecular-level adhesion between materials through high-temperature fusion, ensuring optimized overall performance of the roll material. The hot-melt process melts the surfaces of adjacent layers by heating, forming a continuous physical interface upon cooling, avoiding the delamination and aging problems that may occur with traditional adhesives. Seamless bonding eliminates interlayer gaps, preventing delamination caused by moisture, gas, or external forces, and improving the stability of the roll material under complex stress.
[0025] Please see Figures 2-5 The two upper reinforcing layers 102 and the two lower reinforcing layers 105 are polyester base materials.
[0026] It should be noted that the upper reinforcing layer 102 disperses stress through the polyester base to resist damage to the waterproof layer 104 caused by cracking of the base layer or external puncture. The lower reinforcing layer 105 further strengthens the tensile properties to prevent the waterproof layer 104 from tearing due to unevenness of the base layer or subsequent loads during construction.
[0027] Please see Figures 2-5 The upper reinforcing layer 103 and the lower reinforcing layer 106 are glass meshes.
[0028] It should be noted that the upper reinforcing layer 103 and the lower reinforcing layer 106 are made of glass mesh. The high strength, corrosion resistance and temperature resistance of the glass mesh, when transformed into roll material 1, provide reliable mechanical support and environmental adaptability, making it especially suitable for engineering scenarios with high requirements for durability and crack resistance.
[0029] Please see Figures 2-5 The self-adhesive layer 107 is a butyl rubber pressure-sensitive adhesive.
[0030] It should be noted that the self-adhesive layer 107 uses butyl rubber pressure-sensitive adhesive. The dense molecular structure of butyl rubber can effectively block moisture penetration and prevent the substrate from becoming damp or leaking. The self-adhesive layer 107 can achieve instant bonding to the substrate at room temperature through slight pressure, without the need for heating or solvent assistance, forming a seamless seal.
[0031] The implementation principle of a high-strength tear-resistant waterproof membrane according to this application embodiment is as follows: Before construction, thoroughly remove dust, oil, loose particles, and sharp objects from the substrate surface to ensure there are no hollow areas or cracks. The substrate needs to be flat; uneven areas should be filled with cement mortar or ground smooth. The moisture content of the substrate should be within a reasonable range for laying to avoid moisture causing the self-adhesive layer 107 to detach. Pre-cut the membrane according to the construction area and node requirements, leaving an overlap width. Unfold the membrane 1 on the substrate, with the protective layer 101 facing upwards and the self-adhesive layer 107 facing downwards, and pre-lay it in the design direction, checking the overlap position. Peel off the release layer 108, slowly removing it from one end of the membrane while simultaneously pressing the self-adhesive layer 107 to ensure full contact between the adhesive surface and the substrate, avoiding wrinkles or air bubbles. Control the peeling speed and laying pressure to prevent the self-adhesive layer 107 from being exposed to contamination prematurely. Use a rubber roller to roll from the center to both sides to remove air and ensure that the self-adhesive layer 107 is tightly bonded to the substrate, paying special attention to the overlap edges and complex nodes. The overlapping area between the long and short sides needs to be compacted a second time to ensure that the self-adhesive layers 107 are bonded to each other. If necessary, use a hot air welding gun to assist in heating and improve the bonding strength.
[0032] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.
Claims
1. A high-strength, tear-resistant, waterproofing membrane in the form of a roll (1), characterized in that: The coiled material (1) is uniformly wound on the outer periphery of the winding drum (2); The coiled material (1) comprises a protective layer (101), two upper reinforcing layers (102) are fixedly connected below the protective layer (101), an upper reinforcing layer (103) is fixedly installed in the middle of the two upper reinforcing layers (102), a waterproof layer (104) is jointly fixedly connected below the two upper reinforcing layers (102) and the upper reinforcing layer (103), two lower reinforcing layers (105) are fixedly connected below the waterproof layer (104), a lower reinforcing layer (106) is fixedly connected in the middle of the two lower reinforcing layers (105), a self-adhesive layer (107) is jointly fixedly connected below the two lower reinforcing layers (105) and the lower reinforcing layer (106), and an isolation layer (108) is fixedly connected below the self-adhesive layer (107).
2. A high strength, tear resistant, waterproofing membrane as defined in claim 1, characterized in that: The protective layer (101), the upper reinforcing layer (102), the upper reinforcing layer (103), the waterproof layer (104), the lower reinforcing layer (105), the lower reinforcing layer (106), the self-adhesive layer (107) and the isolation layer (108) are seamlessly combined through a hot melting process.
3. A high strength, tear resistant, waterproofing membrane as defined in claim 1, wherein: The two upper reinforcing layers (102) and the two lower reinforcing layers (105) are polyester base.
4. A high strength, tear resistant, waterproofing membrane as defined in claim 1, wherein: The upper reinforcing layer (103) and the lower reinforcing layer (106) are glass meshes.
5. A high strength, tear resistant, waterproofing membrane as defined in claim 1, wherein: The self-adhesive layer (107) is butyl rubber pressure-sensitive adhesive.