---
product_id: 384014911
title: "Sentinel Leak Sealer 1L, Seals All Minor leaks and Weeping Joints in Heating Systems, Suitable for All Metals Including Aluminium, Will not Cause blockages in The Heating System"
brand: "sentinel"
price: "421 zł"
currency: PLN
in_stock: true
url: https://www.desertcart.pl/products/384014911-sentinel-leak-sealer-1l-seals-all-minor-leaks-and-weeping
store_origin: PL
region: Poland
---

# Seals all minor leaks instantly Compatible with all metals incl. aluminium No blockages in heating systems Sentinel Leak Sealer 1L, Seals All Minor leaks and Weeping Joints in Heating Systems, Suitable for All Metals Including Aluminium, Will not Cause blockages in The Heating System

**Brand:** sentinel
**Price:** 421 zł
**Availability:** ✅ In Stock

## Summary

> 💧 Seal leaks like a pro—because your heating deserves the best!

## Quick Answers

- **What is this?** Sentinel Leak Sealer 1L, Seals All Minor leaks and Weeping Joints in Heating Systems, Suitable for All Metals Including Aluminium, Will not Cause blockages in The Heating System by sentinel
- **How much does it cost?** 421 zł with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.pl](https://www.desertcart.pl/products/384014911-sentinel-leak-sealer-1l-seals-all-minor-leaks-and-weeping)

## Best For

- sentinel enthusiasts

## Why This Product

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

## Key Features

- • **System-Safe Formula:** Engineered to prevent blockages, keeping your heating system running smoothly and efficiently.
- • **Leakproof Confidence:** Stops all minor leaks and weeping joints fast, so your heating never skips a beat.
- • **Compact & Ready-to-Use:** 1L of powerful polyurethane sealant in a sleek, easy-to-handle bottle—ready when you are.
- • **Trusted Sentinel Integration:** Perfectly compatible with other Sentinel products for a holistic heating system care.
- • **Universal Metal Compatibility:** Works seamlessly with every metal type, including delicate aluminium—no exceptions.

## Overview

SentinelLeak Sealer 1L is a professional-grade polyurethane sealant designed to instantly seal minor leaks and weeping joints in all indirect central heating systems. Compatible with all metals including aluminium, it ensures no blockages occur, maintaining optimal system performance. Compact and easy to use, it integrates seamlessly with other Sentinel products for comprehensive heating system protection.

## Description

Sentinel Leak Sealer 1L, Seals All Minor leaks and Weeping Joints in Heating Systems, Suitable for All Metals Including Aluminium, Will not Cause blockages in The Heating System

## Features

- Ideal for sealing small leaks or weeping joints on all types of indirect central heating systems
- Seals small leaks or weeping joints on all types of indirect central heating systems
- Seals all minor leaks
- Compatible with other Sentinel products
- Suitable for all metals including aluminium

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Manufacturer | Sentinel |
| Part number | Sentinel Leak Sealer |
| Item Weight | 1.07 Kilograms |
| Product Dimensions | 10.13 x 9.67 x 21 cm; 1.07 kg |
| Item model number | LS-12X1L-EXPA |
| Color | White |
| Style | Compact |
| Material | Polyurethane |
| Item Package Quantity | 1 |
| Included components | Sentinel Leak Sealer 1 litre |
| Batteries Included? | No |
| Batteries Required? | No |

## Product Details

- **Material:** Polyurethane
- **Brand:** Sentinel
- **Style:** Compact
- **Item dimensions L x W x H:** 10.1 x 9.7 x 21 centimeters
- **Compatible material:** Aluminum

## Images

![Sentinel Leak Sealer 1L, Seals All Minor leaks and Weeping Joints in Heating Systems, Suitable for All Metals Including Aluminium, Will not Cause blockages in The Heating System - Image 1](https://m.media-amazon.com/images/I/41NS23nDjAL.jpg)

## Frequently Bought Together

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**Shop now:** [https://www.desertcart.pl/products/384014911-sentinel-leak-sealer-1l-seals-all-minor-leaks-and-weeping](https://www.desertcart.pl/products/384014911-sentinel-leak-sealer-1l-seals-all-minor-leaks-and-weeping)

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*Product available on Desertcart Poland*
*Store origin: PL*
*Last updated: 2026-02-02*