Last fall I designed and installed an anchor platform, realizing after installation that I’d cut corners on two steps:
1. The final finish wasn’t nearly thick enough. Only three coats of varnish. As it is constructed of red oak, a strong but rot-prone material, I should have sealed it with two to three coats of epoxy, then 6-8 coats of varnish.
2. I sealed the deck mounting holes with neat epoxy, which I am confident has prevented any water intrusion into the deck core, but this isn’t really sufficient. I should have over-sized the holes, and filled them with thickened epoxy, then re-drilled them the correct size. Doing this will ensure that the surrounding core never gets wet, and that the deck structure itself is incompressible.
Fortunately, the half-measures I took last fall did offer some protection, and I have only to strip the platform, bleach with oxalic acid, then refinish. I will also pot the mounting holes in the platform itself for a complete seal.
This project is slated for 14-19 October, while my wife is out-of-town. I was tempted to do some solo cruising while she was gone, and it still sounds attractive, but this project re-do is important and time-consuming, so I will hopefully have it finished by the time she returns so that we can do some mid-autumn cruising.