Waterstop 8". 20m roll.

Rubber waterstop is an essentitial part of concrete swimming pool construction.

Used to create a waterproof bond between floor and walls.

8" width for large or deep pools.

AVOID COLD JOINTS. Cold joints are formed primarily between two batches of concrete where the delivery and placement of the second batch has been delayed and the initial placed and compacted concrete has started to set. The full knitting together of the two batches of concrete under vibration to form a homogeneous mass is therefore not possible, unlike the compaction of two fresh workable batches of concrete. This could be a potential place of weakness.