Teflon Dot Increases Finish Quality, Decreases Masking Times

The design of the Teflon magnetic dot drastically increases finish quality and consistency while decreasing overall masking application/removal times and provides a low-volume solution with no tooling required, according to distributor EPSI.

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The design of the Teflon magnetic dot drastically increases finish quality and consistency while decreasing overall masking application/removal times and provides a low-volume solution with no tooling required, according to distributor EPSI.


The Teflon magnetic dot was first developed for the powder coating and plating industries in 2008 as a high-temperature masking solution for no-paint zones around tapped holes. For many years, the company says, coaters had been using high temperature die-cut discs to mask these areas, and the results were less than perfect: low quality, often non-centered paint lines around indicated no-paint zones. Coaters also were forced to spend too much time applying and removing the die cuts.


The Teflon magnetic dot is composed of a samarium cobalt rare earth magnet, housed in a Teflon shell. The working temperature range of the mask is 500°, which provides protection for mplating/powder coating applications. The shell is designed to not only protect the magnet, but helps locate the mask concentrically over the tapped hole while providing a crisp, predictable paint line around the no-paint zone every time.
 

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