I’m ready to start bolting back pieces to my new lower right wing and while I’ve used “Clear Coat” (system three penetrating epoxy) to coat inside the holes in the spar (I used a Q-Tip soak in the resin....let dry...reamed hole with correct size reamer for bolt and then re applied a second coat of the Clear Coat penetrating epoxy using a Q-Tip again. I then allowed to dry and reamed the hole a final time and all holes appear well sealed) I’d like to use some sort of Corrosion Preventive Compound (CPC) on the bolt shanks that will live inside the spars. I assume this is overboard and not everyone does this? When I disassembled wing I did have a few bolts with corrosion (rust) on the shanks that were inside the spar. I’d like to avoid that and “do it right”. What’s the best product for this? I’ve heard some just use a tiny bit of grease on the shanks and I’ve heard some use something made for this but don’t know the name. Recommendations welcome!