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TechKleen FDW and TechKleen FD for Displacement Drying

TechKleen® FDW and TechKleen® FD for Displacement Drying Systems

For drying applications that demand a spot-free finish, a displacement agent and rinsing agent in combination with specially designed equipment are typically employed to get the job done. Spot-free drying can be accomplished because of the relatively high specific gravity of the drying fluid which encourages rapid displacement of water from the part surface.

TechKleen® FDW (displacement agent) and TechKleen® FD (rinsing agent) are the new products of choice for this high-tech, results-oriented process due to their excellent performance characteristics and because they are an environmentally conscious alternative to water displacement drying systems such as CFC113, HCFC-225 (AK-225) and other perfluorocarbon systems. For example, TechKleen® FD has an Ozone Depletion Potential (ODP) of zero and very low Global Warming Potential (GWP).

Some applications that often require a spot-free finish include:

· Electromechanical Assemblies

· Optical Elements and Lenses

· Computer Components

· Medical Devices

· Computer Components

· Aerospace Components


A fully integrated system typically includes: drying sump; two rinsing sumps; primary and secondary water separators; primary and secondary cooling systems; and, a filtered recirculation system.


TechKleen® FDW – as the displacement agent typically used in tank one. An azeotropic, non-flammable solvent blend consisting of 1,2-trans-dichloroethylene and HFC-365mfc (1,1,1,3,3-pentafluorobutane) with an added specialty surfactant for water displacement drying.

TechKleen® FD – as the cleaning and rinsing agent typically found in tanks two and three and consisting of 1,2-trans-dichloroethylene and HFC-365mfc (1,1,1,3,3-pentafluorobutane).

For more information on TechKleen®FDWTechKleen® FDor on the displacement drying process, just call the pros at Envirotech International – (708) 343-6641. We will be happy to help!