Radiator Stop Leak is a high quality water based sealant designed for temporarily fixing leaking cooling systems. Its fast acting formulation effectively seals radiators, heater cores, weeping head gaskets, hose joints and welsh plugs in automotive engines preventing major damage from loss of coolant and engine overheating.
Additional Product Information:
Radiator Stop Leak is suitable for all types of motorcycles, passenger cars, 4WD's, light and heavy duty commercial vehicles, construction, mining,agricultural and stationary engines.
Radiator Stop Leak is suitable for use with all types of materials including aluminium, cast iron, copper, brass, plastics & rubber hoses. One x 375 ml bottle will treat between 6 & 12 litres.
Radiator Stop Leak will not block cooling system passages and is compatible with anti-freeze anti-boil solutions. If cooling system has lost fluid prior to Radiator Stop Leak being used, we recommend refilling with a quality OEM approved Penrite anti-freeze anti-boil coolant such as -
8 Year Red Coolant (OEM Approved) Premix
8 Year Red Coolant (OEM Approved) Concentrate
7 Year Green (OEM Approved) Premix
7 Year Green (OEM Approved) Concentrate
7 Year Blue (OEM Approved) Premix
7 Year Blue (OEM Approved) Concentrate
350,000KM Green Coolant Premix
350,000KM Green Coolant Concentrate
Universal Top Up Premix
RCI100,000 KM Concentrate
Instructions for Use:
- Remove radiator cap (Do not remove whilst engine is hot)
- Shake bottle well prior to using
- Start engine and run, with heater on, for 2 minutes
- Add contents directly to the radiator
- Refill radiator and refit radiator cap
- Leave engine and heater on for 5 minutes
- Please dispose of bottle thoughtfully
Note: Penrite Radiator Stop Leak is designed as a temporary repair and does not replace the need for mechanical repairs.
If leaks are still evident after use, replacement or repair of faulty parts may be required.
For product safety and handling information, click the Material Safety Data Sheet (MSDS
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