Regarding Rubber Waterstops (What Adhesive is Used for Rubber Waterstops)

Grouting-pipe-type centrally located waterstops use natural rubber as the raw material and are used for gate sealing, building waterproofing, etc. They come in two types: disposable grouting pipe centrally located waterstops and reusable grouting pipe centrally located waterstops. Disposable grouting pipes do not have overflow holes, while reusable grouting pipes have overflow holes every 3 cm.

A pressure-resistant rubber sleeve is tightly fitted over the perforated part of the grouting pipe. This rubber sleeve, covering the overflow hole, acts as a one-way valve, preventing grout from flowing back into the grouting pipe.

Advantages of the grouting-pipe-integrated waterstop:

1. Simple installation, supplied as a complete set;

2. Grouting pipes can be cut to the required length on-site according to the actual needs of the joint (grouting outlet length should not exceed 6 meters);

3. No special installation equipment required;

4. Grouting time can be arbitrarily selected;

5. When grouting under pressure, the grout can maintain a uniform flow throughout the pipe;

6. The system allows for grouting at relatively low pressure;

7. Installation does not affect the inherent properties of the building structure;

8. Installation or grouting process does not damage the concrete;

9. Guaranteed seal after grouting; The grouting-pipe-integrated waterstop utilizes a vacuum cleaning principle, allowing the pipe to be washed with water for reuse.

The grouting-pipe-integrated waterstop is used for sealing construction joints, cold joints, pipe seepage cracks, and gaps between walls and floors in concrete.

Installing grouting pipes between new and old concrete joints is highly suitable.

When water enters the joint, it can be sealed by injecting grout through the PVC ports on the surface.

The appropriate time for grouting is after the concrete curing is complete.

Leaking joints can also be sealed using this method.

Our company specializes in various standard national standard rubber waterstops, embedded waterstops, external waterstops, water-swellable rubber waterstops, steel-edged rubber composite waterstops, steel plate putty waterstops, and various special-shaped standard waterstops. Custom production is available based on customer drawings and samples.

Should rubber waterstops or water-swellable waterstops be used for post-pouring joints? Before pouring concrete at construction joints, cleaning the surface of the initial concrete is crucial. Because the time difference between the two pours is relatively long, many impurities, dust, and fine sand remain on the surface. If not cleaned properly, this becomes a barrier layer, creating a seepage channel.

It is necessary to clean the surface with water during cleaning.

Then lay a 30mm-50mm thick layer of 1:1 cement mortar or apply a bonding agent, and then pour concrete promptly.

Ambient temperature for waterstop construction: For polymer-modified asphalt rubber waterstops, cold bonding method should be no lower than 5°C, and hot-melt method no lower than -10°C; for composite polymer rubber waterstops, cold bonding method should be no lower than 5°C, and hot-melt welding method no lower than -10°C; for self-adhesive rubber asphalt waterstops, no lower than 5°C. Installation and fixing: Fixing the circular device of the rubber waterstop in the center of the expansion joint is crucial for installation.

Detailed technical instructions should be given before installation. Construction should be carried out by a qualified waterproofing company, with certified and experienced operators.

Design and selection of waterstops: The selection of waterstops should be determined based on a comprehensive consideration of the importance level of the structure, the deformation amount and water pressure of the expansion joint, the applicable working environment of the waterstop, and economic factors.

Solutions for cracked rubber waterstops during construction: Chemical grouting. For cracked waterstops in the expansion joints of the foundation slab, chemical grouting combined with a removable waterstop can be used for repair.

This is because chemical grouting materials have excellent adhesion to concrete, and after solidification, they exhibit excellent elasticity and water-induced expansion.

Before grouting, use a steel file to thoroughly clean the polystyrene board, cracked waterstop, and other debris from the original expansion joint. Then, use a cleaning agent to treat the concrete surface within a 500mm wide area of the cracked area to ensure a clean, smooth, and even surface.

After thoroughly cleaning the expansion joint and removing any debris, high-pressure grouting can be performed in stages through the grouting pipe, depending on the actual situation. After grouting, anti-corrosion wooden strips are added to the exterior of the expansion joint, followed by a top-pressure steel plate. For wall expansion joints, reinforced concrete baffles and caulking fillers are added to the outside. Then, chemical grouting is used to seal the expansion joint within approximately 1 meter of the top of the wall, ensuring the chemical grout overlaps with the rubber waterstop to form a water seal. After construction, monitoring of the expansion joint width as it changes with temperature and the overall deformation of the basement structure should be arranged to control and compensate for any deficiencies. When selecting waterproofing products, embedded waterstops are crucial, and the quality of the construction project is even more important. The market is currently chaotic, making it difficult to buy good waterproofing products. For those unfamiliar with waterproofing products, buying good products is even more difficult, and they may even be deceived without realizing it. Therefore, before buying waterproofing products, it is essential to have a certain understanding of them; the most basic things to know are necessary.

What to pay attention to when doing waterproofing: 1. The first step in waterproofing is to understand the waterproofing product, waterstop. Understand its function, performance indicators, product types, and available varieties. Carefully review the drawings and strictly follow the design requirements when purchasing the waterproofing product waterstop. Not every type is suitable. When purchasing waterproofing product waterstops, research prices and quality. 2. The second step in waterproofing is to use the waterproofing product waterstop correctly.

What kind of adhesive is best for bonding rubber? (What kind of adhesive is used to connect rubber waterstops?)

What kind of adhesive is best for bonding rubber?

Rubber bonding also includes different types, such as bonding rubber to rubber, rubber to fabric, and rubber to metal. Bonding rubber to rubber and rubber to fabric is relatively easier, while bonding rubber to metal is slightly more complex.

However, some commonly used adhesives, such as two-component adhesives with good overall performance, like SK313 with a matching hardener, can be used for both bonding rubber to rubber and bonding rubber to metal.

During on-site application, an angle grinder is needed to clean both the rubber bonding surfaces and the surfaces to be bonded.

The mixed SK313 is then evenly applied to the bonding surfaces. After drying, another layer is applied.

When the adhesive is slightly sticky to the back of your finger, the rubber pieces are bonded together, and then tamped firmly with a rubber mallet to remove excess air.

What adhesives can bond rubber? What are the main uses of rubber? (What adhesives are used to bond rubber waterstops?)

Rubber has a wide range of applications in daily life. Do you know what its main uses are? Utilizing the various properties of rubber, it can be made into different products. Rubber flooring is one such product. Rubber flooring is usually installed using adhesives to achieve stable flooring. So, what adhesives can bond rubber? Let's learn about rubber together. What adhesives can bond rubber? 1. There are many types of adhesives for bonding rubber. Commonly available adhesives include structural adhesives, marble adhesives, and epoxy adhesives. These adhesives have high bonding strength, but high bonding strength doesn't necessarily guarantee good performance. Because these adhesives are designed for high adhesion, their cured hardness is relatively high. If the hardness is too high, the adhesive layer of the rubber can crack or tear, causing damage or peeling. 2. For rubber bonding, the adhesive needs not only strong adhesion but also good flexibility. Cold vulcanizing adhesive SK313 is very suitable. SK313 is a neoprene rubber type adhesive, which has good adhesion to most materials and strong wetting properties. When used on cement floors, it can completely penetrate into the small gaps of the cement after cleaning away surface dust. As an imported German adhesive, its bonding strength exceeds the German DIN industrial standard, and the bonding strength between cement floors and rubber sheets is beyond doubt. 3. As a chloroprene rubber adhesive, it naturally possesses good flexibility and tear resistance, and has a strong ability to cope with complex stresses caused by various impacts and vibrations. The hardness of the adhesive layer itself is comparable to that of the rubber sheet, and it will not tear the rubber sheet. 4. The biggest feature of cold vulcanizing adhesive SK313 is that it can undergo a vulcanization reaction with the semi-vulcanized layer on the back of the RIT wear-resistant rubber sheet, thus fusing together and further improving the bonding strength and overall integrity. It is also more effective in handling complex stresses. 5. Cold vulcanizing adhesive SK313 has strong environmental adaptability, is resistant to water, oil, and corrosion, and has a long service life. Under indoor static conditions, it can maintain its bonding strength for 20 years without decline, making it very suitable as an adhesive for bonding floors and rubber sheets. What are the main uses of rubber? 1. Uses of natural rubber: Simply put, natural rubber can be made into smoked sheets, air-dried sheets, crepe sheets, technically graded dry rubber, and concentrated latex, depending on the rubber processing method. 2. Due to the aforementioned series of physicochemical properties of natural rubber, especially its excellent resilience, insulation, water resistance, and plasticity, and after appropriate treatment, it also possesses valuable properties such as oil resistance, acid resistance, alkali resistance, heat resistance, cold resistance, pressure resistance, and abrasion resistance. Therefore, natural rubber has a wide range of applications. 3. For example, everyday items include rain boots, hot water bottles, and elastic bands; surgical gloves, IV tubing, and condoms used in the medical and health industry; various tires used in transportation; conveyor belts, transport belts, and acid- and alkali-resistant gloves used in industry; irrigation and drainage hoses and ammonia bags used in agriculture; weather balloons used for meteorological measurements; sealing and shockproof equipment used in scientific experiments; aircraft, tanks, cannons, and gas masks used in national defense; and even high-tech products such as rockets, artificial satellites, and spacecraft rely on the use of natural rubber. What kind of glue can bond rubber? Actually, the glue used for different types of rubber bonding will vary. It is hoped that friends can understand the main uses of rubber. Generally speaking, its uses are very extensive, and it is involved in many facilities in life.