Permatex 30301 Radiator Repair Stop Leak 16 oz Coolant Additive

Permatex Radiator Repair is a professional-grade coolant additive formulated to stop leaks and seepage in cooling systems. This fast-acting formula works to seal minor leaks in radiators, heater cores, gaskets, and freeze plugs without requiring a complete system flush.

Key Features:

• Stops minor coolant leaks and seepage in radiators and cooling system components
• Helps prevent engine overheating by maintaining proper coolant levels
• Safe for use with all types of antifreeze and coolant formulations
• Works on head gaskets, heater cores, freeze plugs, and radiator seams
• Easy-to-use liquid formula requires no draining or flushing
• 16 fluid ounce bottle treats most cooling systems

This radiator stop leak formula circulates through the cooling system and seeks out leaks, forming a permanent seal at the source. Compatible with cars, trucks, SUVs, and other vehicles with liquid-cooled engines. Not recommended for severe leaks or mechanical damage requiring professional repair.