The Rot Doctor


Subject: old fence posts question
Date: Wed, 02 Sep 1998

Dear Dr. Rot,

First of all, I want to tell you that I am a True Believer after using CPES just once on my son's recommendation. Since then, in my proselytizing about the product, I am sounding suspiciously like an enraptured evangelist. Friends have been noted to duck behind doors or automobiles on spotting my approach. It's seriously affecting my social life.

I am gearing up now for several big projects and will, without question, use CPES everywhere you recommend in the new construction of a small barn, a bathroom addition, and the moving/replacing of fencing, decking, other wood structures, to accommodate the new work. My question today is about fence posts.

Those that I dig up and move I will simply treat heavily, as directed, before repositioning. Question is how to treat the posts I don't move, some of which are showing signs of weakening: they move some when jiggled. Is there some way to apply CPES so that it thoroughly penetrates the wood buried below ground level? Maybe drilling, squirting, filling, or some similar approach?

Your response much appreciated.

Susan H.


Well, thank you! for your sweet words! We're very happy that you're satisfied with our product.

The problem you're likely to have with posts in the ground is that they're wet or damp, and the CPES doesn't work as well on damp wood. If they are dry, however, or at least reasonably dry, then yes, drilling down-slanting holes and injecting the CPES will do the job. You should then go back and fill the holes with our Layup & Laminating Resin. It will bond with the CPES and make things even stronger. And, of course, you should brush the surface of the post as well.

Come back if we can be of further help. On your new construction, ask us specific questions and we'll give you our best advice.