News & Events

  • Boric Sulfuric Acid Anodize (BSAA)

    Flying High with an Environmentally Friendly Alternative to Chromic Acid Anodize Chromium, in certain forms, is on its way off of the proverbial production map, and with this comes the swan song of a staple of engineering-centric coatings such as hard chrome chromate conversion coatings and chromic acid anodize (CAA). Chromic acid anodize, a.k.a. Type I per MIL-DTL-8625, has traditionally been used in the following applications: Airframe components due to its increased corrosion resistance T…

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  • Burnt on Nylon

    Q & A: Burnt on Nylon

    Q: We recently sent you a group of parts to be electroless nickel plated and upon return noted that they exhibited missing or flaking plating on the ID. What happened? [Machine Shop Customer – Moonachie, NJ] A: Upon microscopic examination of the returned parts, there was noted a white “glob” at the top edge of each of the parts. Using a wooden stick the material could be mechanically separated from the part exposing raw, untreated substrate material beneath. We chemically removed the plating …

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  • Q & A: Impregnation After Anodize

    Q: I have some cast aluminum (355 T6) parts in question that have been anodized but have issues with porosity. Can impregnation be done on these parts to correct the condition in an anodized state? Would we need to re-anodize after impregnation? A: The reason you’re seeing porosity after anodize is that during processing the pores adsorbed the anodize electrolyte — namely sulfuric acid. And if your parts are dyed, we’re sure the acid is leeching the dye, making the pores even more noticeable. T…

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  • Zinc-Nickel Plating

    Zynik II Zinc Nickel

    By offering outstanding thermal and corrosion resistance as well as being a more environmentally-friendly alternative to cadmium, zinc-nickel is increasingly being used in applications such as aircraft landing gear, railway switching gear and electrical connector shells.…

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  • The Impact of Anodize on Dimensions

    Anodizing is seemingly a pretty basic process, however, in the case of precision machined parts there are a lot a nuances that if not carefully considered and taken into account can spell disaster. Unlike plating where metal is deposited directly on the substrate and one can readily measure the dimensional change using any number of instruments from micrometers to X-ray, anodize is a conversion coating wherein aluminum from the being part being anodized is converted to aluminum oxide. Because al…

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