Pay close attention to this detailed method for welding an aluminum cylinder head using super coolant, with TIG welding ...

Addressing heat buildup at the intersection of the tool tip and the workpiece are essential for the best results.

Engineers at engine-preheater maker Kim Hotstart Manufacturing, Spokane, Wash. (www.kimhotstart.com), used Amodel FR-4133 polyphthalamide (PPA) for the firm's tank-style engine-coolant heater.