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Hi Jon. Ya, sorry, It's brass all-thread. The connector sockets on
the ends of the wires will be copper. I'm using 1/8 inch rods, threaded
brass, epoxy potted, then sealed with polyurethane.
After the things are assembled, the whole thru-hull will be painted with
VULCHEM which is a polyurethane paint that's made for submerged applications
like swimming pools, docks, and the like. I've used it many times before and
it's tough stuff, lasts a long time, and for sure doesn't leak.
I worked on a wind turbine/tunnel at NASA and we used that stuff exposed to
sunlight and some pretty rough handling. On another task I went and looked at it
after about 5 years and that stuff was just as good as the day I put it
on. Frank D.
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