Fernox LS-X Leak Sealer 50ml Product Code: 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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Safety Data Sheet
Additional Information
Technical Specification
  • Brand : Fernox
  • Product Type : Leak Sealer
  • Volume : 50 ml
  • Model No : LS-X
  • Pack Size : 1
  • Manufacturer Guarantee : 1 Year Guarantee
  • Pieces in Pack/Case : 1
Product Contents
Delivery & Returns


Standard delivery service up to 3 working days: €8.95

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€6.35 Incl. 23% VAT

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Fernox LS-X Leak Sealer 50ml is rated 4.6 out of 5 by 329.
Rated 5 out of 5 by from LEAK SEALER It does what it says on the box! every tool box/bag should have a tube of this stuff in it perfect for that one fitting with a tiny weep that you can only just reach with the tip of one finger, but that's all you need to smear some of this stuff onto it
Date published: 2019-05-02
Rated 5 out of 5 by from Really helpful Introduced to me by a Plumber years ago and find it a really good addition to have in your tool bag. For a leak that isn't under pressure this is the right thing to use. Saves a lot off time
Date published: 2019-04-29
Rated 5 out of 5 by from Perfect sealant for the job! As others have described this is a great sealant for a new or old leaking fitting! It’s not the cheapest of products BUT it works and because it comes in a small tube fits very nicely in your tool box and you don’t need a applicator gun just squeeze power Very highly recommend it!
Date published: 2019-04-22
Rated 5 out of 5 by from Stop that drip........ Had a persistent leak on radiator TRV input due to scored copper pipe. Choice was either to replace the pipe, which was imbedded in concrete floor, or use a sealer. Fernox LS-X used on joint which hasn't leaked since. Slightly more expensive than other similar products, but it worked first time and I would recommend this product.
Date published: 2019-04-18
Rated 5 out of 5 by from super for leaks this is the best there is for sealing leaks on presser connectors, I now always add to new couplers from the start,which make sure its not going to leak
Date published: 2019-04-03
Rated 5 out of 5 by from Amazing stuff Can't believe how good this stuff is. Works very well and easy to apply. Great product.
Date published: 2019-03-19
Rated 5 out of 5 by from effective leak sealant reasonably priced effective sealant handy for the toolbox
Date published: 2019-03-14
Rated 5 out of 5 by from Excellent Does exactly what it says on the tin. Stopped leaks straight away
Date published: 2019-03-03
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