Hengshui Guangfeng Engineering Rubber and Plastic Co., Ltd.

Product introduction
Common name: water-swellable water-stop strip, product type water-swellable water-stop strip, water-swellable rubber strip, water-stop strip
Overview
Product type water-swellable water stop strip Swelling waterstop is a new type of waterproof material that has the performance of general rubber products and the ability to expand automatically when exposed to water. The water-stopping and waterproofing effect is more reliable than ordinary rubber water-stop strips
Product-type water-swelling water-stop strips or B. This product is produced using polymer expansion rubber technology and special processes. It not only has good expansion properties, but also has good elasticity and restoring force of general rubber. It undergoes elastic changes under the action of external pressure and has elastic water-stopping effect. The product has strong ion resistance and no dissolved matter during the expansion process. It is non-polluting, has good swellability after being repeatedly immersed in water, and has the dual functions of being permanent and environmentally friendly. It is a material used to prevent leakage in the construction joints of various underground building construction projects, water conservancy projects, traffic tunnel projects, power plant cooling towers, municipal water supply and drainage, and other concrete masonry projects
Main features
When the rubber comes into contact with water, it will expand and deform at least twice, filling all irregular surfaces, cavities and gaps of the joints, and at the same time generating huge contact pressure, completely preventing leakage
B When joints When the joints or construction joints are displaced, causing the gap to exceed the elastic range of the material, the ordinary rubber water-stopping material loses its water-stopping effect, while this product can also stop water by absorbing water and expanding.
Using water-swellable rubber as a leak-stopping and sealing material not only saves usage, but also eliminates the elastic fatigue characteristics of general elastic materials caused by excessive compression, making the waterproofing effect more reliable, water-resistant, and chemical-resistant. Good performance and aging resistance.
It is mainly used for waterproofing of existing joints of shield construction methods, deformation joints of buildings, waterstops for construction joints and metal components, and waterproofing of joints of prefabricated concrete components.
How to use water stop strips
The reserved groove method leaves a groove that can accommodate half of the rubber strip on the previously poured cement surface, and then embeds the rubber strip into the half of the slot. Keep pouring cement.
Use the pasting method to position the glue waterstop along the installation line.
The steel nail dense nailing method uses steel nails to position the rubber strip along the installation line and the denser the steel nails, the better.
The joints can be bonded with beveled surfaces, or positioned with steel nails after being overlapped with beveled surfaces.
Precautions for waterstop strips
The cement surface in contact with the rubber strip must be smooth and should not be uneven.
Since the specific gravity of the rubber strip is lighter than that of cement, the rubber strip must be firmly positioned when installed to prevent the strip from floating and misaligning, causing water leakage.
Do not leave seams first and then insert strips. The strips should be firmly fixed and then embedded tightly and not exposed.
This product should not be exposed to the air for a long time. It should be placed in a dry and ventilated warehouse to avoid exposure to strong light