Bare wood surfaces are ill-suited for paint adhesion. Before epoxy paint will adhere to a wood floor, it must be coated with an acrylic latex primer. The primer should be applied, using a roller affixed to a rolling pole. The primed wooden floors must dry for at least three hours before they are ready for epoxy paint. If you have wood floors that are heavily scratched, discolored, or otherwise showing their age, an epoxy coating can theoretically hide the damage and create a new surface layer. If the wood has any kind of stain or seal, that needs to be removed completely. Even if it’s old wood flooring that has not been refinished in decades, it must be sanded to create an exposed, rough surface for the epoxy to bond.
Hardware stores sell epoxy floor coating kits that you can install yourself, but these products will not work very well on wood floors. A DIY epoxy coating kit will probably not adhere to the wood correctly, causing it to crack and peel throughout.