The DropWise application process is based on a initiated chemical vapor deposition (iCVD) technique developed by the Gleason Lab at MIT. Using just a very small amount of polymer precursors, and chemical reaction is carried out that covalently grafts an ultra-thin polymer film to any metal surface: stainless steel, titanium, copper, aluminum, etc..

schematic of core deposition process using heated filaments to help initiate thermally-mediated polymerization reaction.

schematic of core deposition process using heated filaments to help initiate thermally-mediated polymerization reaction.

Schematic of in-situ DropWise deposition process performed within a shell-and-tube steam condenser.

Schematic of in-situ DropWise deposition process performed within a shell-and-tube steam condenser.

The DropWise process has been specifically designed for coating heat exchangers. By carefully controlling the conditions within the shell of the heat exchanger, a polymer film selected from a wide library of monomer precursors can be deposited which best suits the condensing vapor, whether it be steam, a refrigerant, or other working fluid.

Since the process is vapor-based, it can be carried out on virtually any configuration of heat exchanger: shell-and-tube, plate-and-frame, twisted coil, etc...