Impreg-Tite is unaffected by thermal shock or the normal action of standard pickling and plating solutions (except chromic acid), says the manufacturer. 

Graphite cubic block heat exchangers have a small footprint with a high amount of heat transfer surface area. Heat exchangers in excess of 400 ft2 of surface area can be supplied.

Graphite heat exchangers are well suited and cost effective for highly corrosive processes used in industries such as chemicals, metallurgy and pharmaceuticals.

Grade M-58 received approval from the Food and Drug Administration so it can be used in food contact applications, meaning the oil-free, self-lubricating, carbon-graphite material can be used in dry running.

Typically, heat exchangers are fabricated from steel, tantalum and other metals, fluoropolymers, glass or graphite. However, when dealing with diluted sulfuric acid, the list of appropriate construction materials is greatly reduced to fluoropolymers, glass, graphite and tantalum.