Reliable, durable, and customizable engineering rubber products and bridge components for infrastructure projects worldwide.
P type rubber waterstop, also named gate seal, is a key part for hydropower project gate to ensure sluice sealed, normal operation. It is made from natural rubber or synthetic rubber, adding various additives and fillers, through the process of plasticizing, mixing, pressing, forming. This product has some species, such as solid P type, hollow P type, square solid P type, square hollow P type, double solid P type, double hollow P type and other types. In the process of using, sluice usually start up, bringing abrasion to waterstop. P type rubber waterstop has the advantages of low coefficient of friction, durable, high tensile strength, good elasticity, resistant to wear, aging, polar liquid. In this way, the waterstop has long service life.
| Item | Index | ||||
| Hardness(shore A) | B | S | J | ||
| 60±5 | 60±5 | 60±5 | |||
| Tensile Strength (MPa) | 15 | 12 | 10 | ||
| Elongation at Break % | 380 | 380 | 380 | ||
| Compression Set | 70°C × 24 h % | 35 | 35 | 35 | |
| 23°C × 168 h % | 20 | 20 | 20 | ||
| Tearing Strength KN/m | 30 | 25 | 25 | ||
| Brittleness Temperature °C | -45 | -40 | -40 | ||
| Hot Air Aging | 70℃×168h | Hardness (shore A) | +8 | +8 | – |
| Tensile Strength (MPa) | 12 | 10 | – | ||
| Elongation at Break % | 300 | 300 | – | ||
| 100°C × 168 h | Hardness (shore A) | – | – | +8 | |
| Tensile Strength (MPa) | – | – | 9 | ||
| Elongation at Break % | – | – | 250 | ||
| Ozone aging 50 pphm: 20%, 48 h | Grade 2 | Grade 2 | Grade 0 | ||
Performance Features：
1.Excellent Elasticity and Deformation Capability Rubber waterstop provides excellent elasticity and recovery performance, allowing it to accommodate structural movement caused by temperature changes, settlement, and external loads while maintaining long-term waterproof performance.
2.Excellent Aging Resistance Manufactured with aging-resistant rubber materials, the waterstop can withstand UV exposure, oxidation, and environmental conditions, ensuring long service life in underground and outdoor applications.
3.Excellent Chemical and Corrosion Resistance Rubber waterstop offers good resistance to groundwater, salt water, and various chemical environments, making it suitable for demanding construction conditions.
4.High Tensile Strength and Abrasion Resistance With high tensile strength and abrasion resistance, rubber waterstop maintains structural integrity during installation and long-term operation.
5.Various Types Available According to different project requirements, we provide various types including embedded rubber waterstop, external rubber waterstop, steel edge rubber waterstop, and water swelling rubber waterstop.
Product Applications：
Rubber waterstops are widely used in:
·Bridge Engineering: Installed in bridge piers, abutments, foundations, and concrete joints to improve waterproof performance.
·Tunnel Projects: Used for waterproofing construction joints and expansion joints in subway, highway, and railway tunnels.
·Hydraulic Engineering: Applied in dams, reservoirs, canals, and hydropower projects for concrete waterproofing.
·Underground Structures: Suitable for basements, underground parking facilities, and civil defense structures.
·Municipal Infrastructure: Used in sewage treatment plants, utility tunnels, and urban underground construction projects.
Installation Method：
1.Positioning Installation
Install the waterstop according to the construction drawings and ensure it is placed accurately at the center of the concrete joint.
2.Fixing the Waterstop
Use steel clamps, fixing devices, or formwork to prevent displacement during concrete pouring.
3.Concrete Casting
Ensure sufficient vibration and compaction around the waterstop to avoid voids and maintain waterproof performance.
4.Joint Connection
Waterstop joints can be connected by hot vulcanization or other approved connection methods to ensure continuous sealing performance.
Customization Service We provide professional customization services for rubber waterstops according to different project requirements:
·Customized width, thickness, and length available;
·Natural rubber (NR), neoprene (CR), and other rubber materials available;
·Customized rubber compounds for improved oil resistance, corrosion resistance, and weather resistance;
·Special cross-section designs available;
·OEM/ODM private labeling service supported;
·Sample approval and mass production available.
Common questions about bridge bearings, expansion joints, waterstop systems, customization, delivery and technical support.
Yes. We support customized manufacturing according to drawings, dimensions, profiles, materials, hardness and technical specifications.
Yes. Samples can be provided for product evaluation and technical confirmation before bulk production, depending on the product.
Quality control includes raw material inspection, production monitoring, dimensional inspection and finished product testing according to product requirements.
Yes. We supply products to international customers in Asia, Africa, the Middle East, Eastern Europe, South America and other markets.
Products can be manufactured according to applicable national, international or project-specific standards based on the product type and customer requirements.
We can review your requirements and provide product recommendations, customized manufacturing and a quotation.
