Fernox LS-X is a fast-acting silicone paste designed to seal external leaks and joints on hot and cold water services. It is particularly useful for repairing leaks around compression joints and screwed fittings without the need for mixing or specialist preparation.
The ready-to-use paste remains flexible rather than setting rock hard, allowing joints to be dismantled when required. It does not shrink or crack with age and can be used across a wide temperature range, from below freezing to above the boiling point of water.
LS-X can also be used as a jointing compound on hot and cold water services, including potable water. For larger leaks or higher pressures, Fernox recommends reinforcing the repair with PTFE or another suitable reinforcement tape.