Coated Paper Grades Wood-containing papers are mainly single-coated(LWC). Coat weights are usually between 6 and 10 g/m2 per side. Traditionally, the coat is applied with a blade coater. More modern installations use a film press for the single coat. At higher basis weights(MWC), two coat layers may be applied per paper side Here, the top coat is usually a blade coat. The pre-coat may be either a film or a blade coat. Wood-free papers cover a very wide basis weight range. Depending on the basis weight, the application can be single coat, double coat or triple coat. The coat weight per layer can vary in a wide range between approximately 8 and 20 g/m2; For board grades, the coat weight depends on the requirements of the final product and on the quality of the base board 865