Fernox LS-X External Leak Sealer (50ml)

Fernox LS-X External Leak Sealer (50ml)
  • Brand: Fernox
  • Product Code: 347 100940
  • Availability: In Stock
  • £5.24
  • Ex Tax: £4.37

Available Options


Tags: Fernox LS-X Jointing Compound

Ideal for use on compression joints and screwed fittings

Never sets rock hard, joints can easily be undone

Ready to use, no mixing

Does not shrink or crack with age

Suitable for use from below freezing point to above boiling point of water

Completely safe to use with drinking water

WRAS approved product

Supplied in 50ml tube

Product Uses

Fernox LS-X is a silicone paste used as an external leak sealer and jointing compound.

Physical Properties

Fernox LS-X contains Acetoxysilane.

Colour: Milky white

Form: Paste

Odour: Mild. Acetic

pH: <3

SG: 1.0 at 20°C

Application and Dosage

When sealing leaks, relieve the water pressure before application if possible. 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. Replace cap immediately after use. Allow a minimum of 1 hour to set. Time required depends on thickness applied. Spraying with water speeds curing.

LS-X may be used as a jointing compound on hot and cold water services, including potable water, in place of traditional materials. Reinforcement is generally not required, but reinforcement fibre may be used on larger pipe sizes.

The use of reinforcement material is advisable for larger leaks and higher pressures.

Packaging, Handling and Storage

Fernox LS-X is supplied in 50ml tubes.

Fernox LS-X is classified as a skin and eye irritant. Keep out of reach of children. Avoid contact with skin. Use only in well ventilated areas. We recommend the use of gloves with this product

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