---
product_id: 691417473
title: "Bar's Leaks 1109 Block Seal Liquid Copper Intake and Radiator Stop Leak - 18 oz. (Pack of 2)"
brand: "bar's leaks"
price: "190.24 DT"
currency: TND
in_stock: true
reviews_count: 13
category: "Bar's Leaks"
url: https://www.desertcart.tn/products/691417473-bars-leaks-1109-block-seal-liquid-copper-intake-and-radiator
store_origin: TN
region: Tunisia
---

# No draining needed Universal coolant compatibility Permanent leak fix Bar's Leaks 1109 Block Seal Liquid Copper Intake and Radiator Stop Leak - 18 oz. (Pack of 2)

**Brand:** bar's leaks
**Price:** 190.24 DT
**Availability:** ✅ In Stock

## Summary

> 🚗 Seal the deal before your ride feels the leak!

## Quick Answers

- **What is this?** Bar's Leaks 1109 Block Seal Liquid Copper Intake and Radiator Stop Leak - 18 oz. (Pack of 2) by bar's leaks
- **How much does it cost?** 190.24 DT with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.tn](https://www.desertcart.tn/products/691417473-bars-leaks-1109-block-seal-liquid-copper-intake-and-radiator)

## 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

- • **Saves Time & Money:** Avoid costly repairs—stop leaks fast and keep your engine running smooth.
- • **Fiber-Enhanced Strength:** Locks leaks with fiber additives for a durable, long-lasting seal.
- • **One-Step Permanent Seal:** Just pour in and drive—no mess, no stress.
- • **Multi-Material Leak Repair:** Penetrates plastic, aluminum & cast iron for versatile fixes.
- • **Antifreeze Compatible Formula:** Works seamlessly with all coolant types—no draining required.

## Overview

Bar's Leaks 1109 Liquid Copper Block Seal is a powerful, one-step coolant leak repair solution that permanently seals leaks in radiators, intake manifolds, and engine blocks. Compatible with all antifreeze types and materials including plastic, aluminum, and cast iron, it requires no draining and uses fiber additives for enhanced durability. Trusted by thousands, it’s the go-to fix for professional-grade, hassle-free cooling system maintenance.

## 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.

Review: Works well, stopped a minor leak in 2002 vortec v6 - I've used this stuff twice in 20 years and both time it worked great. The first was in a 1998 grand cherokee that was driven across town with low coolant resulting in a blown head gasket or cracked cylinder head. The second a 2002 S10 v6 that ran great but consumed a half gallon of coolant every few days. In both cases I added the full bottle and drove the car. In the case of the S10 it took a couple days driving to work but it's been a month now and no leaks. Saved me a ton of work replacing the head gasket and/or cylinder head(s).
Review: Quick, Effective, and Easy One‑Step Fix - Bar’s Leaks Liquid Copper Block Seal really delivers. The one‑step formula makes it simple to use—just pour it in and let it circulate. Within a short time, it sealed a small radiator leak and stopped coolant loss without any complicated process or extra tools. The 18 oz. size is generous enough for most vehicles, and the copper formula feels more heavy‑duty compared to standard stop leaks. It saved me from an expensive repair and kept the engine running smoothly. For anyone dealing with minor intake or radiator leaks, this product is a reliable, cost‑effective solution that works exactly as advertised.

## Features

- The information below is per-pack only
- 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 |
|---------------|-------|
| ASIN | B0DC7TX8SJ |
| Best Sellers Rank | #10,272 in Automotive ( See Top 100 in Automotive ) #1 in Radiator Sealers |
| Brand | Bar's Leaks |
| Brand Name | Bar's Leaks |
| Color | copper |
| Compatible Material | Ceramin |
| Customer Reviews | 4.3 out of 5 stars 1,527 Reviews |
| Included Components | 1109 Block Seal |
| Item Dimensions | 7.5 x 2.6 x 2.6 inches |
| Item Form | Liquid |
| Item Weight | 2.3 pounds |
| Item dimensions L x W x H | 7.5 x 2.6 x 2.6 inches |
| Manufacturer | Bar's Leaks |
| Material | Sodium Silicate |
| Material Type | Sodium Silicate |
| Model | 1109 |
| Number of Items | 2 |
| Number of Packs | 2 |
| Part Number | 1109 |
| Style | 1 Pack |
| Style Name | 1 Pack |
| Surface Recommendation | Automotive |
| Unit Count | 2 Count |
| Water Resistance Level | Waterproof |

## Product Details

- **Brand:** Bar's Leaks
- **Item Weight:** 2.6 Pounds
- **Item dimensions L x W x H:** 7.5 x 2.6 x 2.6 inches
- **Material:** Plastic
- **Style:** 1 Pack

## Images

![Bar's Leaks 1109 Block Seal Liquid Copper Intake and Radiator Stop Leak - 18 oz. (Pack of 2) - Image 1](https://m.media-amazon.com/images/I/71Zwol9WVML.jpg)
![Bar's Leaks 1109 Block Seal Liquid Copper Intake and Radiator Stop Leak - 18 oz. (Pack of 2) - Image 2](https://m.media-amazon.com/images/I/71wAZckXmcL.jpg)
![Bar's Leaks 1109 Block Seal Liquid Copper Intake and Radiator Stop Leak - 18 oz. (Pack of 2) - Image 3](https://m.media-amazon.com/images/I/41X0xUy+9EL.jpg)

## Available Options

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

## Customer Reviews

### ⭐⭐⭐⭐⭐ Works well, stopped a minor leak in 2002 vortec v6
*by M***E on March 1, 2026*

I've used this stuff twice in 20 years and both time it worked great. The first was in a 1998 grand cherokee that was driven across town with low coolant resulting in a blown head gasket or cracked cylinder head. The second a 2002 S10 v6 that ran great but consumed a half gallon of coolant every few days. In both cases I added the full bottle and drove the car. In the case of the S10 it took a couple days driving to work but it's been a month now and no leaks. Saved me a ton of work replacing the head gasket and/or cylinder head(s).

### ⭐⭐⭐⭐⭐ Quick, Effective, and Easy One‑Step Fix
*by M***L on November 18, 2025*

Bar’s Leaks Liquid Copper Block Seal really delivers. The one‑step formula makes it simple to use—just pour it in and let it circulate. Within a short time, it sealed a small radiator leak and stopped coolant loss without any complicated process or extra tools. The 18 oz. size is generous enough for most vehicles, and the copper formula feels more heavy‑duty compared to standard stop leaks. It saved me from an expensive repair and kept the engine running smoothly. For anyone dealing with minor intake or radiator leaks, this product is a reliable, cost‑effective solution that works exactly as advertised.

### ⭐⭐⭐⭐ Value and price
*by M***E on June 14, 2026*

Works well for small leaks

## Frequently Bought Together

- Bar's Leaks 1109 Block Seal Liquid Copper Intake and Radiator Stop Leak - 18 oz. (Pack of 2)
- Bar's Leaks Rear Main Seal Repair, 16.9 oz
- Bar's Leaks OS-1 Oil Seal Engine Oil Burning and Leak Repair, 16.9 oz.

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---

*Product available on Desertcart Tunisia*
*Store origin: TN*
*Last updated: 2026-08-12*