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Fernox LS-X Leak Sealer 50ml (23614)

Silicone paste used as an external leak sealer and jointing compound.

  • Suitable for Compression Joints & Screw Fittings
  • For External Use
  • For External Use

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Qty Price per item
1 - 2 £5.29 (£105.80/Ltr)
3 + £4.76 (£95.20/Ltr)
£5.29INC VAT (£105.80/Ltr)

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Fernox LS-X Leak Sealer 50ml is rated 4.6 out of 5 by 166.
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Rated 5 out of 5 by from Fernox Leak Sealer This product performs excellently for jointing BSP fittings as well as sealing 'old' weaping joints. A must have for all tool boxes! It is silicone based but the fittings are watertight immediately so you do not need to allow time for the paste to cure. NOT FOR USE ON GAS FITTINGS.
Date published: 2011-10-12
Rated 5 out of 5 by from LS-X time saver A real time saver when re working older plumbing a smear on the olive before tightening a joint is all that is needed to ensure a watertight seal every time. Old fittings with a slight weep can be cured with a wipe of LS-X to the outside of the threaded fitting, no need to disassemble. Joints can be broken easily if replacement parts are needed in the future unlike some of the permanent white compounds. Only dropped a couple of stars on the value because it always sets in the tube after 6 months or so, no matter how careful I am to avoid contaminating it with water.
Date published: 2017-02-17
Rated 5 out of 5 by from Brilliant stuff Abs brilliant product, I had a radiator with a a practically stripped thread which just would not seal with paste or tape. This did the business first time. It might seem expensive for a small tube, however you only need a small amount. Another radiator was weeping from the base connection and I just smeared some Fernox around the joint - total success. Cannot recommend this stuff highly enough - so many uses on my motorbike as well!
Date published: 2017-02-16
Rated 5 out of 5 by from ferno ls-x great product first time ever used it its great even used it instead of ptfe + no leaks!
Date published: 2017-02-13
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Can it stop a weeping connection from an old (1970s) stopcock. It's completely seized up (open) and a plumber put another above it. I don't want to disturb the old stopcock as it's connected to the mains with old black plastic pipe, but want to stop this

Asked by: DangerousDIYer
Hello DangerousDIYer. LS-X should be able to stop the leaks, however you will need to get the surface as dry as possible so that it can cure correctly.It would help to bind the weep with some PTFE tape, then coat with LS-X to seal the leak completely. Hope this helps.
Answered by: Fernox Client Services
Date published: 2017-02-17

Is this sealant clear?

I have a joint between a bib tap and bib tap extension that will not completely seal using rubber washers or PTFE tape. Can you let me know if this product is clear when cured?
Asked by: Anonymous
Hello SusieMaroon. When the LS-X cures it will go cloudy, so it will not be completely clear. Hope this helps.
Answered by: Fernox Client Services
Date published: 2017-01-16

Can I use this to help stop a leak on plastic thread fittings?

I have fitted a new close coupled toilet cistern and have a reoccurring leak where the braided metal hose for the water inlet meets the plastic thread fitting of the new cistern inlet. Is this product suitable for this type of application? Thanks!
Asked by: GuigsyWigsy
Hello GuigsyWigsy. LS-X would work fine for this. Please make sure you turn off the water and re-make the joint using LS-X and that should solve the problem.
Answered by: Fernox Client Services
Date published: 2017-02-21

Can this seal a leaking soil pipe?

The soil pipe was new 2 years ago. Where this meets the ground I notice there is a small leak of water on floor. Is this product good to close this small leaking?
Asked by: Convey766
Hello Convey766. The LS-X will be able to stop small leaks, as long as it is applied to a dry surface and give sufficient time (about an hour) to set. Hope this helps.
Answered by: Fernox Client Services
Date published: 2017-01-27

Bath waste

How will this work on a bath waste as ours leaks when draining? Racking my brains as I feel could be an issue with the threading due to a few attempts with a few bottle traps?
Asked by: Stick71
Hello Stick71. LS-X will be fine to use on the bath waste, however you need to make sure the surface is clean and dry. Apply a thin layer and wait for an hour before using the bath again. Hope this helps.
Answered by: Fernox Client Services
Date published: 2017-02-13
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Specification
Brand Fernox
Manufacturer Guarantee 1 Year Guarantee
Manufacturer Guarantee 1 Year Manufacturer's Guarantee
Model No LS-X
Pack Size 1
Pieces in Pack/Case 1
Pieces in Pack/Case 1
Product Type Leak Sealer
Sealant Adhesive Volume 50 ml

Downloads

Safety Data Sheet (COSHH)