The following study illustrates the use of Integument’s new FluoroGrip ® peel-and-stick fluoropolymer films for preventing corrosion and extending equipment life for a California cold storage facility.
The company operates facilities that store fresh fruits at temperatures down to 34°F. This allows the goods to be sold during more profitable times of the year. The equipment used to keep the rooms chilled includes chillers and aluminum drip pans employed to collect condensation that is generated by the chillers. The acidic (H2SO3) condensation is collected in the pans and then piped away for proper handling.
The facility owner actively experimented with traditional epoxy-phenolics and other conventional paints and coatings. Traditional coatings were unsatisfactory for several reasons: The operational downtime, combined with application costs for sandblasting and metal preparation was prohibitive. The pans are constructed of a relatively thin gauge of aluminum, which sandblasting permanently damaged by warping. The coatings did not withstand the corrosive environment and failed to protect the aluminum from corrosive attack.
Working with Integument engineers, the customer selected a FluoroGrip ® – P (PTFE), 10-mil fluoropolymer film which incorporates a proprietary plasma surface activation and acrylic adhesive technology to create a peel-andstick fluoropolymer film. After a simple solvent wipe (isopropyl alcohol) surface preparation, the film was applied to both the interior and exterior pan surfaces — much like wallpaper. The project was finished by sealing all film edges with FluoroGrip ® SB-100 brushable fluoroelastomer edge sealant.
Teflon ® is a registered trademark of the Dupont Company
Halar ® is a registered trademark of Ausimont-Solvay
Kynar ® is a registered trademark of Ato-Finatechnical
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