DuraCoat Reducer is specially formulated for DuraCoat. This propritary blend of solvents is a must for a successful fireams finishing project. The use of other solvents will dramatically change the chemical balance of DuraCoat and may cause finish failure. DuraCoat may be reduced up to 20 for proper atomization which allows for a smooth even flow. DuraCoat Reducer must also be used to clean your spray gun ank keep it running smoothly.. Type - Reducer. Item weight - 8 oz.