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Quandary on ice clinging to zinc plated, chromate coated parts

We have a customer that tests in a high humidity chamber at high temperature, but the drawer of the freezer (0 °F) is opened periodically. This causes condensation on the metal parts, which freeze when the drawer is closed. Corrosion resistance is not an issue, but a coating to prevent the ice clinging so well to the metal parts would solve the problem. Is there a final coating, after leachant sealant, that would accomplish this objective? Wax? Silicone? Teflon?....Help....!

Art Lammens
Product Designer - Fullerton, California
August 27, 2008

Most suppliers of leachant-sealants offer versions that either incorporate a wax, or provide a wax that can be added separately to the leachant-sealant topcoat. These formulations were developed to provide salt spray resistance as well as torque-tension relationships for threaded assemblies. Contact your leachant-sealant supplier for further details.

Tom Rochester
CTO - Jackson, Michigan, USA
Plating Systems & Technologies, Inc.

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August 30, 2008

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