Meet our friend GAC. It's the next stage of my process. Once the boards are cut to size and ready to go (or unwrapped if I'm using Birch panels), GAC-100 will be the next thing. Of course I make sure the board is free and clear of any remaining dust first. I just simply run a damp paper towel over the board and wait a few min for it to dry. Once I'm ready for the GAC, I squirt the bottle over the panel and smooth it out with a paintbrush. I make sure to get the whole surface. In the case of the Birch panel, I also cover the sides. For the Masonite, the sides aren't necessary, but the back might be, depending on the size of the panel. The bigger the panel, the more you will want to cover both sides to avoid warping. Small panels won't warp as much. I do 3 coats of GAC, taking time to let each coat dry in between, usually about 5-10 min. Make sure to alternate direction on the subsequent coats. Meaning, if you swiped right with the paintbrush for the first coat ;) make sure you swipe up for the next coat. This will help make it stronger and further avoid warping. The GAC looks like white glue, but has a thinner consistency. This protects your panel and also gives it longevity. The thing about using wood is that years later some of the oils (or chemicals/glue in the case of Masonite) could seep through the layers of paint and ruin your painting. The 3 layers of GAC will help prevent this from happening (combined with the next stage of the process...)
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ALLEZ DANS LES COULISSES
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