---
product_id: 438427770
title: "1109-6PK Liquid Copper 'Block Seal' Intake and Radiator Stop Leak - 18 oz., (Pack of 6)"
brand: "bar's leaks"
price: "£148.22"
currency: GBP
in_stock: true
url: https://www.desertcart.co.uk/products/438427770-1109-6pk-liquid-copper-block-seal-intake-and-radiator-stop
store_origin: GB
region: United Kingdom
---

# Easy pour application One-step formula Antifreeze compatible 1109-6PK Liquid Copper 'Block Seal' Intake and Radiator Stop Leak - 18 oz., (Pack of 6)

**Brand:** bar's leaks
**Price:** £148.22
**Availability:** ✅ In Stock

## Summary

> 🚗 Fix leaks in a flash with Bar's Leaks!

## Quick Answers

- **What is this?** 1109-6PK Liquid Copper 'Block Seal' Intake and Radiator Stop Leak - 18 oz., (Pack of 6) by bar's leaks
- **How much does it cost?** £148.22 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.uk](https://www.desertcart.co.uk/products/438427770-1109-6pk-liquid-copper-block-seal-intake-and-radiator-stop)

## Best For

- bar's leaks enthusiasts

## Why This Product

- Trusted bar's leaks brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **🚀 Permanent Leak Fix:** Say goodbye to coolant loss with our one-step solution!
- • **🌍 Eco-Friendly Formula:** Safe for your vehicle and the environment!
- • **🔒 Strong & Reliable Seal:** Fiber additives create a robust, lasting seal.
- • **⚡ Quick & Easy Application:** Just pour it in and let it work its magic!
- • **🛠️ Versatile Compatibility:** Works with all coolant types—no draining needed!

## Overview

Bar's Leaks 1109-6PK Liquid Copper 'Block Seal' is a powerful 18 oz. solution designed to permanently repair leaks in your vehicle's cooling system. This easy-to-use formula is compatible with all types of antifreeze and requires no draining, making it a hassle-free choice for car owners. With its fiber additives, it creates a strong seal that works on various materials, ensuring your vehicle stays cool and efficient.

## Description

Bar’s Leaks® Liquid Copper™ Block Seal Coolant Leak Fix Stop Leak seals larger leaks regular stop leaks won’t. One step formula permanently repairs coolant loss problems on cars, trucks, vans, SUV’s and RV’s. Antifreeze compatible sodium silicate liquid glass penetrates large and small leaks in plastic, aluminum and cast iron heads, blocks, intake manifold & gaskets, freeze plugs, heater cores and radiators. Fiber additives lock together with liquid to increase strength and promote a permanent seal. It will not harm the coolingsystem when used properly, no draining is required. Use with ALL types of traditional or extended life coolant including yellow, orange, pink, red, blue, purple and green silicate based & non-silicate based (OAT/HOAT) 50-50 mix antifreeze, and/or water.

## Features

- PERMANENTLY FIXES COOLING SYSTEM LEAKS: . One step formula permanently repairs coolant loss problems on cars, trucks, vans, SUV’s and RV’s.
- ANTIFREEZE COMPATIBLE - NO DRAINING REQUIRED: Antifreeze compatible sodium silicate liquid glass penetrates large and small leaks in plastic, aluminum and cast iron heads, blocks, intake manifold & gaskets, freeze plugs, heater cores and radiators.
- ONE STEP - POUR DIRECTLY INTO RADIATOR - EASY TO USE: Fiber additives lock together with liquid to increase strength and promote a permanent seal. It will not harm the coolingsystem when used properly, no draining is required.
- USE WITH ALL TYPES OF TRADITIONAL OR EXTENDED LIFE COOLANT: Use with ALL types of traditional or extended life coolant including yellow, orange, pink, red, blue, purple and green silicate based & non-silicate based (OAT/HOAT) 50-50 mix antifreeze, and/or water.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Manufacturer | Bar's Leaks |
| Brand | Bar's Leaks |
| Model | 1109-6PK |
| Product Dimensions | 6.6 x 6.6 x 18.8 cm; 589.67 g |
| Item model number | 1109-6PK |
| Manufacturer Part Number | 1109-6PK |
| Item Weight | 590 g |

## Product Details

- **Material:** Plastic
- **Brand:** Bar's Leaks
- **Style:** Compact
- **Item weight:** 1.3 Pounds
- **Item dimensions L x W x H:** 6.6 x 6.6 x 18.8 centimeters

## Images

![1109-6PK Liquid Copper 'Block Seal' Intake and Radiator Stop Leak - 18 oz., (Pack of 6) - Image 1](https://m.media-amazon.com/images/I/71Punx5e8fL.jpg)

## Available Options

This product comes in different **Size** options.

## Frequently Bought Together

- Bar's Leaks 1109-6PK Liquid Copper 'Block Seal' Intake and Radiator Stop Leak - 18 oz., (Pack of 6)
- Bar's Leaks Liquid Aluminum Radiator and Heater Core Stop Leak. 6 Pack,1186-6PK

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**Shop now:** [https://www.desertcart.co.uk/products/438427770-1109-6pk-liquid-copper-block-seal-intake-and-radiator-stop](https://www.desertcart.co.uk/products/438427770-1109-6pk-liquid-copper-block-seal-intake-and-radiator-stop)

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*Product available on Desertcart United Kingdom*
*Store origin: GB*
*Last updated: 2026-05-29*