Forté Advanced Radiator Stop Leak (J05211)
Sealing the cooling system without downtime – quickly, effectively, and safely
Description of action:
Forté Advanced Radiator Stop Leak is an advanced product for temporary and preventive sealing of micro-cracks and pores in the cooling systems of combustion vehicles. It works based on natural fibres and surfactants:
- Effectively seals leaks up to 1.4 mm – in the radiator, heater, water pump, and hoses
- Does not clog the radiator or heater core – safe for the entire cooling system
- Removes oxygen from the system – preventing corrosion and scale formation
- Softens rubber seals, e.g., in the water pump – extending their durability
- Stops coolant leaks, allowing you to continue driving without the risk of engine overheating
Why is it worth it?
- Immediate action on the road – allows you to complete your journey without downtime and costly towing
- Ideal for the driver's cabin – recommended as a "technical first aid kit" for every combustion vehicle
- Does not disrupt the cooling system's operation – does not cause blockages, deposits, or reduce radiator efficiency
- Compatible with all types of coolants, including ethylene glycol, "fill for life" fluids, OAT, antifreeze agents
Capacity:400 ml
Catalogue number:J05211
When to use?
- In case of coolant leakage – temporary repair without the need for disassembly
- Preventively – especially in older vehicles and with high mileage
- After prior system cleaning – if the cooling system is contaminated, we recommend using Forté Bio Degreaser / Cooling System Flush first
How to use
- Shake the package vigorously
- Slowly add 400 ml of Forté Advanced Radiator Stop Leak to the cooling system (or 10% of the volume for larger systems), through the radiator cap or expansion tank
- The engine should be running, and the heating set to maximum temperature
- Heat the engine to operating temperature and leave it idling for 20–30 minutes
- After the process is complete, the product remains active in the system until the next fluid change, and its action does not negatively affect cooling components
