Redline Water Wetter Supercoolant is a unique wetting agent for cooling systems which reduces coolant temperatures by as much as 30 degrees F. This liquid product can be used to provide rust and corrosion protection in plain water for racing engines and it provides much better heat transfer properties than glycol-based antifreeze. Also, it can be added to new or used antifreeze to improve the transfer of ethylene and propylene glycol systems. Designed for modern aluminum, cast iron, copper, brass, and bronze systems.