There are products containing disodium octaborate tetrahydrate and glycols which claim to be injecible into wood to stop and prevent rot. Bora-care is one of these products. I have a deck in Seattle which has 4x6 beams made of untreated wood which show white fibers of rot on the surface underneath. I am considering treating the beams to extend their life. Has anyone used these products and seen good results?
Bob