PVC Waterstop Connection Method

There are two connection methods for PVC waterstops: direct connection and angled connection. Direct connection is the process of directly attaching and overlapping two waterstops together, which is relatively simple. And oblique overlap is the connection of two waterstops at an inclined angle, which can increase the stability and durability of the waterstop connection.

Do you need hot melt treatment

Whether hot melt treatment is required at the PVC waterstop connection depends on the specific situation. If an embedded waterstop is used, it can be directly overlapped without the need for hot melt treatment. If self-adhesive waterstop is used, it needs to be hot-melt treated to ensure complete sealing at the overlap.

The specific steps of hot melt treatment are as follows:

1. Cut the waterstop to ensure that the lengths of the two waterstops are consistent.
2. Perform diagonal overlap at the overlap of the waterstop.
3. Use an electric torch to heat the overlap of the waterstop, and connect the adhesive layer of the hot-melt waterstop to the wall.
4. Use a textured wheel or diamond sandpaper to remove the oxide layer on the surface of the hot melt waterstop, sprinkle with clean water, and wipe dry with a towel.

matters needing attention

1. When performing hot melt treatment, be careful not to overheat to avoid damaging the waterstop.
2. Hot melt treatment requires the use of a professional electric torch and cannot be carried out using ordinary open flames.
3. After the overlap is processed, it should be inspected to ensure that the overlap is completely sealed and does not leak water.

Finally, we would like to remind everyone to pay attention to the surrounding temperature when using PVC waterstops. If the temperature is too low, it is not suitable for construction, especially in cold northern regions. If the temperature is below six degrees Celsius, the product will become brittle. Even if there is no problem at the time, it is easy to break after prolonged use, which will affect the construction effect. In the long run, we do not recommend construction in the cold winter.