Another. Ore for POR15. An extremely hard surfaced pawing that is very corrosion
resistant and sticks to rust. If you go with it I’d leave the parts
out in the rain for a week then treat with their cleaner prep spray before painting. POR15 actually sticks best to Lightly rusted surfaces.
Galvanizing would be best it will probably be pricey to do a few small parts
. Also not good for anything that has tight tolerances as deposited zinc adds to dimensions. May have to ream out rudder
fitting after hot dipping.