Brush the bottom third or bottom half of the fence post with waterborne copper naphthenate a wood preservative that is free of arsenic and chromium.
Roof sealnt fence post.
Sealing tops of treated fence posts.
In this video i show how the old timers use to treat protect fence posts from rotting.
Prepping to apply sealer to the tops fence posts hoping we will get a day over 50 degrees i went around with straight bleach over the tops today.
The posts are about 10 years with tops sawn at an angle and nothing was ever applied per the installer.
Already have the epoxy sealer.
Available at some paint stores and home centers this wood treatment is specifically designed for in ground applications.
They are being sealed to preserve against decomposing.
Brush the preservative on the entire post if.
In concept these practices would seem to block some moisture transfer into the wood but there isn t any research to suggest that it increases longevity.
Soak the bottom of the posts in a wood preservative containing copper napthanate such as cuprinol.
Coating the post base with asphalt roofing cement driveway sealer tar or a bituminous self adhesive flashing tape are fairly common practices.