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Published on Feb 19, 2013
Mix chalk powder, white glue and water in the ratio 2:1:1.5. Apply three coats of this mixture on the board using a flat 2" brush. If the first coat is applied in the vertical direction, the second can be in the horizontal direction. In between each coat, allow time to dry and smoothen the board with fine emery paper. After the final coat, allow the board to dry for a day.