Sand the surfaces of the stoneware lightly with the fine sandpaper to give it a slightly rough finish. Sand the inner surfaces of the piece if you can reach them. Wipe off the sanded surfaces of the stoneware thoroughly with the tack cloth to remove all dust.
Spray the degreaser spray over the inner and outer surfaces of the stoneware to clean them. Wipe off the spray with the cloth to dry the item completely.
Load the paintbrush with the acrylic enamel paint and apply the paint over the stoneware piece in a thin layer. Work carefully to ensure that you keep the paint even over the entire surface of the stoneware, including inner surfaces (if applicable), coating the surfaces completely. Allow the stoneware to dry for at least eight hours.
Apply a second coat of the acrylic enamel paint over the stoneware to achieve more even and flawless paint coverage. Allow the paint to dry for at least 72 hours before touching the stoneware.