Spotted a drip, a coolant smell or a falling coolant level? B-RAL Coolant Leak Repair is a simple, no-flush radiator stop leak. Pour it into your cooling system and carry on. The formula includes carbon fibre for added strength.

A comparable choice if you are looking for a K-Seal style coolant leak sealer. B-RAL is an independent brand and is not made by, or affiliated with, K-Seal.

Key Benefits

• No flushing: simply pour and go

• Carbon fibre for added strength

• Radiator stop leak: designed for small coolant leaks

• Also for water pumps, heater cores and freeze plugs

• Convenient bottle with easy-pour yellow cap

How It Works

Coolant leak sealers circulate around the cooling system with the coolant. When they reach the point where coolant is escaping, they are designed to help seal small leaks. The carbon fibre content is included to add strength to the seal. Results depend on the size and location of the leak.

How to Use

Generic steps only. Verify against the printed label directions before publishing.

1. Make sure the engine is switched off and fully cool. Never open a hot cooling system.

2. Check the coolant level and top up with the correct coolant if needed.

3. Shake the bottle well, then pour the contents into the radiator or expansion tank

4. Refit the cap, start the engine and run it as directed on the label

5. Re-check the coolant level once cool and top up if required.

Suitable For

• Radiators

• Water pumps

• Heater cores

• Freeze plugs

• Cars and vans, Boats, Motor Bikes etc

• Classic cars, including Minis and other older vehicles

FAQs

Do I need to drain or flush the cooling system? No. The label states "No flushing - just simply pour & go".

What can it be used on? The label says radiator stop leak, and also for water pumps, heater cores and freeze plugs.

Can I use it in a classic car? Many owners of older vehicles use stop leak products, but please check the label and your vehicle handbook first.

Will it fix any leak? It is designed for small leaks. Large splits, cracked radiators or head gasket failures need a proper repair.

Safety and Disclaimer

Use only on a cool engine and never open a hot cooling system. Always read and follow the manufacturer's instructions on the bottle. This product is not a substitute for proper repair in cases of severe damage; if a leak persists, have the vehicle inspected by a qualified mechanic. Keep out of reach of children.

Radiator Stop Leak - Just Pour and Go

Available Options

Have a question?