Q & A
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| TOPIC: 420SS Plating to Increase the Life of a Mold | |||
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Submitted: October, 2001 |
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To increase the life of a PVC mold one should avoid any treatment
containing chrome. PVC emits hydrochloric acid, which is precisely
what is used to strip chrome by plating companies. Treatments such as TiN may provide a good hard surface, but wear might lead to flaking, due to erosion of the white layer substrate. Recommended plating for 420 Stainless Steel, to increase the life of a PVC mold, might be an electroless nickel-based coating, with an additive to provide better wear resistance. You may consider NiHard, a combination of Nickel and Cobalt, from Bales Mold Service. They can be reached at 1-800-215-6653 or at http://www.balesmold.com/services.htm.
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