Wood Restoration is the process of using a very liquid penetrating epoxy mix to saturate wood, strengthening the fibers at the same time killing fungi. This is not an epoxy adhesive, but a penetrating liquid that changes the structure of wood. Then a thick putty like epoxy is used to fill in...
Wooden window sashes tend to rot. There are special hardening and filler materials that can do a good job of restoring this wood without having to replace it -- also good for the bottom of door frames.
A wood hardener is the starting point, to solidify existing soft wood and prepare the area for...
