91 - Sizing Up

I removed the wee magnety squares I'd stuck on: it's because I need to stack the squares when I glue on the pictures, compressing them with an even weight while they dry. The magnets would have created a gap, preventing that even pressure across the surface.

That done, I painted each square with acrylic gloss medium. This acts as a 'size' to seal the wood surface and protect it from damp. Much easier working with a water based medium. They were touch dry quickly but I need to wait a few days before the size has hardened off fully.

This brand is available in a large bottle from Hobbycraft which isn't too far from me. I cycled over the other day to collect it. Apparently the gloss provides a better seal than a matte because it's less porous and dries harder. So there you go.