Making an epoxy tabletop is a great way to create a unique and durable piece of furniture. To get started, you'll need a wooden board or tabletop. For a 40"x80" table top, sand the surface to create a smooth finish. Next, mix the epoxy resin and hardener according to the package instructions. Pour the mixed epoxy over the wooden surface and spread it evenly using a brush or roller. Use a blowtorch or heat gun to remove any air bubbles. Allow the epoxy to cure for at least 24 hours before sanding and repeating the process if necessary. Repeat the process until you achieve the desired thickness and finish. With a little patience and attention to detail, you can create a beautiful and long-lasting epoxy tabletop.