---
product_id: 49191272
title: "603022 Ls-X Leak Sealer External, 50 g"
brand: "fernox"
price: "$U1916"
currency: UYU
in_stock: true
url: https://www.desertcart.uy/products/49191272-603022-ls-x-leak-sealer-external-50-g
store_origin: UY
region: Uruguay
---

# WRAS approved Jointing compound Compact silicone 603022 Ls-X Leak Sealer External, 50 g

**Brand:** fernox
**Price:** $U1916
**Availability:** ✅ In Stock

## Summary

> 🔒 Seal the Deal with Ease!

## Quick Answers

- **What is this?** 603022 Ls-X Leak Sealer External, 50 g by fernox
- **How much does it cost?** $U1916 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.uy](https://www.desertcart.uy/products/49191272-603022-ls-x-leak-sealer-external-50-g)

## Best For

- fernox enthusiasts

## Why This Product

- Trusted fernox brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Ready to Go:** No mixing required; just apply and seal.
- • **Safety First:** WRAS approved for safe use with drinking water.
- • **Compact Power:** Lightweight design for easy handling and storage.
- • **Seal with Confidence:** Ideal for compression joints and screwed fittings.
- • **Flexibility at Its Best:** Never sets rock hard; easily adjustable joints.

## Overview

The Fernox 61016 LS-X Leak Sealer is a versatile jointing compound designed for external use, perfect for compression joints and screwed fittings. With its WRAS approval, it ensures safety for drinking water applications. This silicone-based sealer is ready to use straight from the package, allowing for quick and hassle-free application without the need for mixing. Its unique formulation means it never sets rock hard, making adjustments a breeze. Compact and lightweight, it's an essential tool for any professional or DIY enthusiast.

## Description

Fernox 603022 Ls-X Leak Sealer External, 50 g

## Features

- Jointing compound and external leak
- Ideal for use on compression joints and screwed fittings
- WRAS Approved- Completely safe to use with drinking water
- Never sets rock hard; joints can easily be undone
- Ready to use, no mixing

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Manufacturer | Fernox |
| Part Number | LS-X |
| Package Dimensions | 14.2 x 3.6 x 2.9 cm; 58.97 g |
| Item model number | LS-X |
| Colour | Yellow |
| Style | Compact |
| Material | Silicone |
| Volume | 0.05 Litres |
| Item Package Quantity | 1 |
| Included Components | Sealer |
| Batteries included? | No |
| Batteries Required? | No |
| Item Weight | 59 g |

## Product Details

- **Material:** Silicone
- **Brand:** Fernox
- **Style:** Compact
- **Item weight:** 59 g
- **Water resistance level:** Waterproof

## Images

![603022 Ls-X Leak Sealer External, 50 g - Image 1](https://m.media-amazon.com/images/I/61H+hWYe0yL.jpg)

## Questions & Answers

**Q: Is this product suitable for leaking cast iron joint of a drainage pipe?**
A: As long as the joint isn't under pressure,  (mains supply ) I have found it stops leaks in most cases , just clean off joint , apply product pushing into crevice or thread, it will then set to a jelly kind of  substance when it comes into contact with water , good product for most applications so cant see why it wont work

**Q: Canthis be used to seal a leak that in a shower fitting that is spraying at high pressure when used?**
A: Depends on the size of the hole but i would say yes. Sealed water pressure at 2 bar with this stuff.

**Q: Will this seal a leak in a campervan where the pipe has disconnected from the tap?**
A: If the pipe has completely disconnected then this sealant will not help.
If you are able to re-connect the pipe to the tap, a smear of the sealant on the connection before tightening it will help to stop a small leak (dripping).
The sealant is very good for stopping drips and small leaks.  It can't be used as a substitute for good plumbing.

**Q: How do you apply this stuff?**
A: Just to correct the early reply, Fernox's own site states LS-X is suitable for both compression and screw fittings.

## Frequently Bought Together

- Fernox LS-X External Leak Sealer and Jointing Compound, Yellow
- XFasten Self Fusing Silicone Tape for Plumbing White 1" X 36-Foot Non-Adhesive Leak Seal Tape Waterproof, Silicone Grip Tape, Rubber Tape Thick for Pipe, Hose Repair Tape, Stop Leak Tape

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*Product available on Desertcart Uruguay*
*Store origin: UY*
*Last updated: 2026-03-15*