Motul | Radiator Stop Leak & Cooling System Sealer (300ml)

Safeguard your vehicle's engine against critical fluid loss and catastrophic overheating with the advanced Motul Radiator Stop Leak. Formulated by the premier French automotive chemical pioneer Motul, this professional-grade cooling system sealer delivers a fast, highly dependable solution for unexpected failures. Over extended drive cycles, cooling networks can develop micro-cracks, porous solder joints, and minor radiator punctures that trigger coolant drops. Motul’s high-tech formula cycles naturally with your active antifreeze and seals these dangerous leaks instantly upon contact with external oxygen, forming a durable, permanent repair that preserves fluid volume without building up internal restrictions.

Product Specifications:

• Brand: Motul.

• Product Name: Radiator Stop Leak.

• Product Type: Cooling system sealing fluid and additive.

• Volume: 300 ml.

• Origin: Made in France.

Product Benefits:

• Immediate Leak Sealing: Rapidly seals dangerous hairline cracks, porous connections, and micro-leaks in the radiator core, water pump glands, and heater matrices.

• Proactive Prophylactic Defense: Prevents future internal sealing degradation when left inside the coolant network, stabilizing baseline expansion levels.

• Guaranteed Clog-Free Formula: Advanced chemistry engineered to seal only at the leak site, ensuring 100% free circulation through tight thermostat lines.

• Universal Material Safety: Thoroughly safe and fully compatible with all types and colors of conventional or OAT long-life antifreezes, rubber hoses, and aluminum cores.

Directions for Correct Application:

1. Allow the vehicle's engine to cool completely before attempting to remove the radiator or overflow reservoir cap to avoid high-pressure steam injuries.

2. Shake the container thoroughly and pour the entire 300ml bottle of Motul Radiator Stop Leak directly into the cooling system.

3. Verify that the total coolant volume in the reservoir meets factory specifications.

4. Start the engine and let the vehicle idle for 10 minutes or go for a short drive to allow the chemical sealant to fully engage and plug the leak sites.

Important Note:

To prevent severe personal injury from pressurized boiling water, never open the system while hot. One concentrated 300ml container is accurately measured to effectively treat automotive cooling systems with capacities up to 12 liters.

Secure high-efficiency radiator sealing and drive with absolute thermal assurance! Buy the 300ml Motul Radiator Stop Leak today from Carboost store.