This large 48" x 36" acrylic panel needed to be prepped for painting, The substrate was in an original state where the paint would not be able to adhere to it's surface. So, the first thing I did was sand the entire surface and then applied several layers of gesso, then I sanded the entire surface by hand in different directions so as to create a weave type of pattern that the oil paint can adhere to. This process took about 4 hours in total, but I was pretty satisfied with the result.
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