Except for materials that repel water, the DIY Epoxy Resin bonds well to every surface. Water-repellant materials include wax paper and plastics (including silicone). Some of the surfaces that the resin works well on include wood, photographs, inkjet prints, acrylic, oil paint that has completely dried, watercolor, spray paint, encaustic, ink, paper collage, oil pastel, sculpture, flowers, and rocks.
When pouring the resin, avoid applying it on loose surfaces. Substances like chalk pastels may mix into the resin after you pour it. You may need to use a sealant over some surfaces since surfaces like paper may absorb the resin instead of allowing it to settle on top. Experimentation before the actual pouring is the best thing to do.