Art resin, by its very design, is meant to be a surface coating for artwork and craft creations—and will self-level to approximately 1/8” in thickness. However, you can make the coating as thick as you like by adding additional 1/8” layers, waiting about 4–5 hours between layers for some curing to occur. This method may also be used for molds and casts. Additionally, layers may be added to the fully cured resin, if the surface is lightly sanded with 200–320 fine grit sandpaper first to help ensure adhesion.