Description
Product information
The Fernox LS-X Leak Sealer & Jointing Compound (50ml) is a versatile solution for sealing leaks in central heating systems, plumbing, and joints. It creates a durable, long-lasting seal that prevents water damage and system downtime. Ideal for use on threaded joints, flanges, and pipes, it helps maintain system integrity and ensures a secure, leak-free connection.
- External leak sealer and jointing compound.
- When sealing leaks, relieve the water pressure before applying and whilst LS-X is setting, drain system if necessary. Apply LS-X direct form the tube and mould into shape using a spatula or knife previously dipped into soapy water (to prevent adhesion or dragging).
Features and benefits
- Ideal for use on compression joints and screwed fittings
- Never sets rock hard, joints can easily be undone
- Does not shrink or crack with age
- Suitable for use from below freezing point to above boiling point of water
- Ideal for use on compression joints and screwed fittings
- It can make better use of resources to repair rather than replace items




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