Epoxy resin is considered the best sealer for acrylic painting because of its superior durability and high-gloss finish. The epoxy resin creates a hard, protective layer that can withstand scratches, chipping, and UV light, which makes it ideal for preserving and displaying acrylic paintings. Additionally, it creates a crystal clear, high-gloss finish that enhances the colors and details of the painting. Learn how to use epoxy resin to give your paintings a gallery-worthy finish!