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Fernox LS-X Leak Sealer 50ml (23614)

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

  • 1 Year Guarantee
  • Suitable for Compression Joints & Screw Fittings
  • For External Use

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Fernox LS-X Leak Sealer 50ml is rated 4.6 out of 5 by 185.
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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 Leaks - what leaks This stuff is amazing, I now use it on every plumbing application I need to do at home. Not pleasant on your hands, so gloves are a must. It stops leaks and prevents leaks when using fittings. Excellent.
Date published: 2017-08-20
Rated 5 out of 5 by from Always use this when doing any This is my 2nd tube, as it had been used all up after we replaced all our old radiators with new modern ones. As I said every plumbing job I undertake I always put a film of this on the threads as it makes sure when you put the water back in it doesn't leak and need to be drained down again so in my opinion well worth the cost as it always works I have found although I am not a plumber so don't use it daily as they would.
Date published: 2017-08-18
Rated 4 out of 5 by from Leak stopper A great product that saved the day when all other methods had failed. Easy to apply and still effective 6 months later!
Date published: 2017-08-11
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Hi. Will this stop a slow dripping leak from the radiator pipe?

Asked by: Gabi
Hello Gabi. LS-X will be able to stop the leak, as long as the surface is dry when you apply it. Hope this helps.
Answered by: Fernox Client Services
Date published: 2017-08-14

Ok for copper pipe fitting?

it this ok to use on a slow leak on a copper pipe (central heating)?
Asked by: copperpopper
Hello Copperpopper. As long as you can apply the LS-X to the surface whilst it is dry this will be fine to use. Hope this helps.
Answered by: Fernox Client Services
Date published: 2017-08-10

Is it suitable to use to attempt to seal a leak from around where the tap is in an outdoor water butt. All components are plastic?

Asked by: Anonymous
Hello Trickydicki. The LS-X will be fine to use for this, however you need to give this a minimum of 4 hours to cure before refilling or getting wet again. Hope this helps.
Answered by: Fernox Client Services
Date published: 2017-07-11

hydraulic pipe work

would this be suitable to seal a small weep on a hydraulic fitting and how fast is curing time please
Asked by: wandango75
Hello, sorry, no.LSX will not be compatible with hydraulic fluid. Only for water. Curing time is 1-2 hours.
Answered by: Fernox Client Services
Date published: 2017-08-19

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: 2017-04-27
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Specification
Brand Fernox
Manufacturer Guarantee 1 Year Guarantee
Model No LS-X
Pack Size 1
Pieces in Pack/Case 1
Product Type Leak Sealer
Volume 50 ml

Downloads

Safety Data Sheet (COSHH)