Before gessoing and painting on hardboard or wood panels, they need to be sealed. Sealing, also called ‘sizing’, prevents the gessoed surface from discoloring caused by naturally-occurring acids in the wood. Sealing panels is really easy to do. This video (3:48 minutes) shows exactly how to seal panels successfully.
In the video, I mentioned two sealing solutions:
Golden Multi-Purpose Acrylic Polymer GAC-100 – 16 oz Cylinder and Gamblin’s PVA: Poly Vinyl Acetate Size: 32 oz
Once your panels are sealed, the next step is to apply gesso. Stay tuned! Next in my bi-weekly oil painting technique videos, I’ll be uploading a video about how to gesso panels and canvas. Let me know if you have any questions about the process.