Fernox LS-X External Leak Sealer 50g 61016

The Fernox LS-X External Leak Sealer 50g is a silicone-based paste intended for sealing minor leaks on external joints in hot and cold water systems. Supplied in a compact tube, it is suitable for general plumbing tasks on site, particularly where immediate or temporary repair is required.

Common applications include sealing leaks or weeps around threaded fittings, pipe joints, or taps. The LS-X can be applied directly to problem areas without draining the system, making it practical for quick fixes and maintenance in both domestic and commercial plumbing jobs.