Cooling system sealing agent 300 ML
Index: STP 30-026
Cooling system leak stopper 300 ml 30-026 STP, for radiators
RADIATOR SEALANTPermanently seals leaks
STP® Radiator Sealant is designed to repair radiator leaks quickly and effectively, creating a permanent seal. It contains corrosion inhibitors that help prevent rust and deposits. STP® Radiator Sealant also lubricates the water pump.
DIRECTIONS
How to use STP® Radiator Sealant:
- Start the engine and leave it running until the coolant is warm (not hot).
- Shake the bottle well and pour the entire bottle of STP® Radiator Sealant into the radiator.
- Leave the engine running for about 10 minutes or drive a short distance, allowing the seal to harden. Exercise caution when opening the radiator/cooling system: hot coolant or steam may leak out. One bottle is intended for cooling systems with a capacity of up to 14 litres.
IS IT SAFE TO USE IN MY VEHICLE
STP® Radiator Sealant is suitable for use with all types of radiators, all types of antifreeze, and is safe for rubber hoses, metal parts, and gaskets.
NOTE!
For best results, especially in older vehicles, the system should be flushed with STP® Radiator Flush to remove rust, scale, and deposits before adding STP® Radiator Sealant.
Description
RADIATOR SEALANTPermanently seals leaks
STP® Radiator Sealant is designed to repair radiator leaks quickly and effectively, creating a permanent seal. It contains corrosion inhibitors that help prevent rust and deposits. STP® Radiator Sealant also lubricates the water pump.
DIRECTIONS
How to use STP® Radiator Sealant:
- Start the engine and leave it running until the coolant is warm (not hot).
- Shake the bottle well and pour the entire bottle of STP® Radiator Sealant into the radiator.
- Leave the engine running for about 10 minutes or drive a short distance, allowing the seal to harden. Exercise caution when opening the radiator/cooling system: hot coolant or steam may leak out. One bottle is intended for cooling systems with a capacity of up to 14 litres.
IS IT SAFE TO USE IN MY VEHICLE
STP® Radiator Sealant is suitable for use with all types of radiators, all types of antifreeze, and is safe for rubber hoses, metal parts, and gaskets.
NOTE!
For best results, especially in older vehicles, the system should be flushed with STP® Radiator Flush to remove rust, scale, and deposits before adding STP® Radiator Sealant.




