Fernox LS-X Leak Sealer 50ml

Product Code: 23614
Fernox LS-X Leak Sealer 50ml
Product Code: 23614
50ml. Silicone paste used as an external leak sealer and jointing compound.


  • Suitable for Compression Joints & Screw Fittings
  • For External Use
  • For External Use
Download more information
Safety Data Sheet
€6.55 Incl. 20% VAT
Add to Wishlist

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


Standard delivery: €15

Free delivery on all orders over €70.00

Click here to see information on our delivery charges and times



Hopefully you won't need to return an item, however, if you do, it is our aim to make this as simple as possible. By following the guidance below you can help us to help you when a product is not what you expected, or is faulty. Your statutory rights are not affected by this guidance.


Click here to see information on returns and cancellation

More Items to Consider

More Items to Consider

Loading... Loading...
Fernox LS-X Leak Sealer 50ml is rated 4.6 out of 5 by 217.
Rated 5 out of 5 by from amazing stuff Well i found a slow dripping leak in a plastic pipe join that runs under and slightly behind our kitchen cabinets, due to the awkward position and complete lack of room it would have been a total pain to replace or refit !!! somebody told me about this stuff gave it a whirl and wow job done instantly . Left a little pot under there to catch the drips its been bone dry ever since.Id like to add that this stuff worked even though it was dripping water while i was applying and still only took one application. I'm very impressed this will now be added to my tool box emergency stash. Seriously though highly recommended give it a go.
Date published: 2017-01-09
Rated 5 out of 5 by from Good product Have used LSX for a few years now, tend to use it as a jointing paste combined with ptfe. Also use it on olives and unions. A MUST !! Ps it does go off quite quick when opened.
Date published: 2016-12-28
Rated 5 out of 5 by from You need this in your toolbox Great stuff. Perhaps a little pricey for what it is; however, it works and I usually lose a tube before I run out. I use it when installing difficult to access joints and not just for repairs.
Date published: 2016-12-24
Rated 5 out of 5 by from Fernox LS-X Fernox LS-X is a great product to fix leaks and seal water pipes etc. The instructions are good and the product is easy to use.
Date published: 2016-12-19
Rated 4 out of 5 by from Good to keep in toolbox I used this years ago when the builder dropped a concrete lintel and it clipped a radiator valve. It was in a difficult place to change but a bit of LSX on the olive stopped the leak.
Date published: 2016-12-04
Rated 5 out of 5 by from Leaking joint fixed This is great stuff does what it says. Radiator connector leaking after re-fitting, put some of this around the joint, reconnected and no more leaks, use all the time now.
Date published: 2016-12-03
Rated 5 out of 5 by from Excellent product This is by far the best joining compound I have used. Its a little on the expensive side, but the cost is worth it. If you need to guarantee a watertight joint LS-X is the one to choose.
Date published: 2016-12-03
Rated 5 out of 5 by from Easy to apply! I've used this product before, which worked well around the joint at the bottom of the flush tank. This time used it for a joint in the central heating pipe-work. The leak has stopped and it has been a few months and seems to be holding! Great product and easy to apply.
Date published: 2016-12-03
  • y_2017, m_1, d_21, h_1
  • bvseo_bulk, prod_bvrr, vn_bulk_0.0
  • cp_1, bvpage1
  • co_hasreviews, tv_0, tr_217
  • loc_en_GB, sid_23614, prod, sort_[SortEntry(order=AGE, direction=DESCENDING)]
  • clientName_screwfix-ie