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Fernox LS-X is a premium yellow silicone-based external leak sealer and jointing compound designed for compression joints and screwed fittings. WRAS approved for potable water, it remains flexible without hardening, works across extreme temperatures, and is ready to use without mixing. Ideal for professional-grade plumbing repairs that demand reliability and easy maintenance.
| ASIN | B0051TPIQ6 |
| Best Sellers Rank | #715,951 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #1,796 in Hardware Sealers #42,160 in Pumps & Plumbing Equipment |
| Brand | Fernox |
| Brand Name | Fernox |
| Color | Yellow |
| Compatible Material | Porcelain, Ceramic, Metal, Silicone, Tubs, Fixtures, Sinks |
| Customer Reviews | 4.5 out of 5 stars 7 Reviews |
| Global Trade Identification Number | 05014551584341, 05014551999961 |
| Item Form | Paste |
| Item Type Name | External Leak Sealer and Jointing Compound |
| Item Weight | 0.07 Kilograms |
| Manufacturer | Alent |
| Material | Silicone |
| Material Type | Silicone |
| Model | LS-X |
| Number of Items | 1 |
| Part Number | LS-X |
| Supported Standards | WRAS |
| Surface Recommendation | [Tub, Fixture, Sink] |
| UPC | 772040563226 |
| Unit Count | 1.0 Count |
| Water Resistance Level | Water Resistant |
A**R
Outstanding product-good vendor
I read about this sealant in an online forum and must say that I have never used anything quite like it. It seems like a silicone type of sealant but stays somewhat soft. Even after opening the tube the contents remain usable for long after a year. I’ve used it on connections such as the wall to toilet tank line, under-sink plastic pipes, and clear plastic/vinyl tubing for a reverse osmosis system. A pre-application to these fittings prior to normal tightening has resulted in 100% leak proof joints. I highly recommend the product. The wait to obtain the product from the UK and the price may seem like an obstacle but the first time you use it you will understand. I have purchased it twice for two different locations.
D**B
Does an excellent job of sealing high pressure leaks
Us this to patch up minor leaks of my pool's high pressure filter tank, and does 100% effective job (drying time overnight)
Trustpilot
2 days ago
1 month ago