Products Finishing

DEC 2013

Products Finishing magazine is the No. 1 industrial finishing publication in the world. We keep our readers informed about the latest news and trends in plating, painting, powder coating, anodizing, electrocoating, parts cleaning, and pretreatment.

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Anodize CleAning TesTs Chart 5 Seal 1 Seal 2 Seal 3 Seal 4 Seal 5 Seal 6 Seal 7 Seal 8 Sanodal Red B3LW Seal 9 Seal 10 See Photo Sanodye Blue G Sanodal Green 3LW See Photo Sanodal Deep Black HBL Sanodye Yellow 3GL See Photo Sanodal Turquoise PLW Inorganic Gold See Photo Inorganic Blue See Photo Inorganic Maroon See Photo Inorganic Bronze See Photo Inorganic Black See Photo Degree of Fading: Some None Most Complete Panels were alkaline soak cleaned, etched, deoxidized, and anodized for 45 min. at 15 amps per sq. ft. to create a porous coating measuring 0.7 – 0.8 mil thick. Red B3LW Inorg.Gold Yellow 3GL Green 3LW the dyes from fading. The MHBD seal (No.9) clearly proved to be the best performer, allowing virtually no color deterioration of the red, green and yellow dyed coatings. As described earlier, this two-step seal process included a standard cold seal followed by a boiling silicate-type seal. In addition to color retention, this seal provides improved alkali resistance, which can be expected to help protect the finish from harsh detergents used to clean the equipment prior to sterilization. For the most part, this study showed that inorganic colors were unaffected by Sterrad sterilization. The gold, blue, bronze, maroon and black easily pass the visual test for color degradation. Although this is not an altogether surprising result, it was interesting to prove none the less. With the exception of the Prussian blue, even the color of the unsealed panels were unaffected by the sterilization cycles. This suggests that other inorganic treatments including integral coloration such as hard coat processing, and interference coloration would produce similar results. Inorg. Blue Inorg. Bronze Inorg. Maroon Inorg. Black Mark Jozefowicz is vice president of Technical Services for Reliant Aluminum Products. He can be reached at mark.jozefowicz@reliantaluminumproducts.com. Thanks to Chris Coker and his colleagues at Advanced Sterilization Products, Division of Ethicon, Inc. a Johnson & Johnson company, for running the lengthy Sterrad test program. New Anodizing Technology for Reusable Medical Equipment A new micro-crystalline aluminum anodic coating packs molecules in a regular, ordered and repeating pattern that makes it suited for reusable medical instruments, equipment and devices that require repeated cleaning and sterilization because of its enhanced chemical stability. http://www.pfonline.com/articles/new-anodizingtechnology-for-reusable-medical-equipment PRODUCTS FINISHING — pfonline.com 27

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