This is a panel I have already prepped and tinted that I decided to cut down into smaller pieces.
After the panels are cut, I paint the back side with two coats of Liquitex acrylic gesso. I buy the gesso by the gallon. I like Liquitex because it is a good consistency that flows nicely and offers good coverage. I dip my brush in water now and then but overall the gesso doesn't need any thinning. I also seal the edges of the panels.
I sand the front side of the panels to give them a little "tooth" and to knock off the rough edges on the sides. I want the palette knife to be able to flow off the edge, NOT get hung up on a rough edge that sticks up. Again, I typically do the sanding outside on the deck unless the weather is too cold or rainy.
GAC-100 seals the wood base from the oil paints and prevents anything from bleeding through to the oil painting and distorting the colors.
After the panels are completely sealed and gessod, I tint the front with an acrylic Napthol Crimson paint.
I like the red crimson color as my base because it seems to work well with my four season, forest paintings. The red sparkles against greens in summer and looks like red cardinals in the forest in winter. The red tint base is a middle value so dark values and light values pop against it.
Then the panels are ready to use!
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