Liqui Moly Radiator Stop Leak is designed to seal small leaks and hairline cracks in the cooling systems of water-cooled engines. It works effectively by sealing leaks instantly, preventing coolant loss and potential further damage due to the engine overheating.Here are the key features of this product:Dispersion Technology: A dispersion-based formula that quickly seals hairline cracks and small leaks in the cooling water circuit, preventing the loss of coolant and protecting the engine from overheating.Compatibility with Coolant Additives: Works with all conventional coolant additives and antifreezes, ensuring seamless integration into your existing cooling system without the need for special modifications.Use in Aluminium and Plastic Radiators: Designed for use with aluminium and plastic radiators, providing flexibility and reliability across a range of engine types, while ensuring durable, long-term sealing.No Negative Impact on Water Pump: The formula is gentle on the water pump and wont block the heating circuit, maintaining the efficiency of your engine's cooling and heating systems without causing unwanted wear or damage.Preventive Use: Can be applied preventively after cooling system repairs to protect against future leaks, offering peace of mind and extending the life of your engine.This product provides a simple, reliable solution for preventing leaks and ensuring your cooling system functions properly. It's a smart addition to your car maintenance routine, offering effective protection and peace of mind for daily driving.150ml/250ml Bottle - Suitable for coolant systems up to 10 litre capacity.Technical Data Sheet