John W Posted January 15, 2020 Share Posted January 15, 2020 Thinking about power coating all the metal control linkage parts made from 4130 steel or aluminum. I think this may give better rust/corrosion control than Zink chromite. Have any of you tried this and what were your results? Only comment I could find on powder coating was in DBFN 82, page 4, but mostly referred to landing gear and motor mounts. I am primarily interested in the feasibility of using power coating on the small rods and linkage between stick and elevator/ailerons, as they are not yet installed. Quote Link to comment Share on other sites More sharing options...
Kent Ashton Posted January 15, 2020 Share Posted January 15, 2020 It's "Zinc Chromate" but that's an old-fashioned coating. 🙂 You might read this thread on the Cozybuilders list. https://groups.google.com/forum/#!msg/cozy_builders/PirmQw044uE/NFgNM0E8CQAJ I paint the engine mount with white Rustoleum. It is easy to touch up or remove if you need to weld a crack. I use a two-part epoxy primer on the aluminum pieces which has great adhesion, then paint over that if you like but AFAIK, powder coating is more chip-resistant than paint. Folks say the powder-coat oven will ruin the aluminum heat treat but I just read a study that says no. I have no opinion on powder coating except that processes like that slow down the building. Quote -KentCozy IV N13AM-750 hrs, Long-EZ-85 hrs and sold Link to comment Share on other sites More sharing options...
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