Brush the preservative on the entire post if.
Roof sealnt fence post.
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.
Of aggregate in the bottom of the posthole to allow for drainage.
Already have the epoxy sealer.
Coating the post base with asphalt roofing cement driveway sealer tar or a bituminous self adhesive flashing tape are fairly common practices.
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.
The posts are about 10 years with tops sawn at an angle and nothing was ever applied per the installer.
They are being sealed to preserve against decomposing.
Place about 6 in.
Sealing tops of treated fence posts.
They would reuse or as we say today re purpose old motor oil.
Available at some paint stores and home centers this wood treatment is specifically designed for in ground applications.