Tim from Mount Vernon, Wa writes
I am getting ready to stain the house and have noticed some new bug hole activity.
In order to get the full benefits of using Boracare, the product label states it is to be used on raw, untreated wood. Bora-Care penetrates faster when applied to all sides, and you get a more complete application, but if you can only apply to one side, it can still penetrate up to 4 inches into the wood with 1 application. Boracare will last the lifetime of the wood as long as you follow the instructions on the product label.
Answer last updated on: 07/29/2022