Ti-Hex heat exchangers are 100% titanium from the tube bundle to the tube sheets, and the water boxes. Tube bundles are TIG welded to the tubesheets using a smooth weld. This gives a 100% seal, impervious to sea water, non-corrosive and non-galvanic service with high dependability. No more “zincs” to change every few months. Lower maintenance, longer service, less down time.