This additive is used to adjust the amount of gloss to a duller, flatter finish of of the Water Based Color Coats. Simply add this product to the color coat before application. When dry, the new finish will have a duller appearance. Leather Magic Color Coats are formulated to produce a “matte” finish, not too glossy, not too flat. However, there are circumstances which require a much duller, flatter finish. DT-81 Flattening Paste allows the user to manually adjust the gloss factor of the new color finish applied.