I applied VC-3 at trim tab safety wire and actuator cotter pin to keep them secure and not fretting in the breeze 3 years ago. it seems to be holding fine. silicone may also work.
Steve Melton
N531EM, RV9A, Superior O-320, WW 200RV prop, Slick mags, CHT 330F, EGT 1300F, B&C, 1300+ hours
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