Cooling System Sealant
Zollex Radiator Stop Leak is a fast-acting sealing formula designed to eliminate minor leaks and microcracks in the engine’s cooling system. It works quickly to seal radiator, hose, and gasket leaks, helping you avoid costly repairs and coolant loss.
The advanced blend of sealing particles and stabilizing agents forms a durable, heat-resistant plug in areas of leakage — without clogging coolant passages or damaging metal, plastic, or rubber components.
Ideal for emergency repairs or preventative maintenance in radiators, heater cores, and the entire cooling system.
Key Benefits:
- Seals micro-leaks and hairline cracks in radiators, hoses, and gaskets
- Prevents coolant loss and engine overheating
- Compatible with all types of antifreeze and coolants
- Safe for aluminum, steel, plastic, and rubber parts
- No need to drain the system
- Works while the engine runs
Application:
Shake well before use. Pour the full contents into the cooling system.
Close the cap and run the engine at high RPM for 5–10 minutes.
Packaging is designed for cooling systems up to 20 liters.