Additive STP Radiator Leak Stopper 300ML

STP® Radiator Sealer was developed to repair leaks in radiators quickly and effectively, forming a permanent seal that ensures the proper functioning of the cooling system. In addition to sealing, its formula contains corrosion inhibitors, preventing the formation of rust and deposits that compromise the efficiency of the system, and also lubricates the water pump, contributing to the durability of the parts and preventing premature failure.

Main benefits:

• Repairs leaks quickly and safely.
• Prevents rust and deposits with anti-corrosive action.
• Lubricates the water pump for greater durability.
• Compatible with all types of radiators and antifreeze.
• Safe for rubber hoses, metal parts and gaskets.

How to use:

1. Start the engine until the coolant is hot (but not boiling).
2. Shake the bottle well and pour the entire contents into the radiator.
3. Leave the engine running for about 10 minutes or drive for a short distance to allow the seal to take effect.

Caution: when opening the radiator, be careful of steam or hot liquid.

One bottle treats systems up to 14 litres in capacity.

Frequency of use: Apply as needed.