General-use filling mass EKO-MAS is designed for application of top finishing coats on walls and ceilings, filling minor cavities and scratches, plasterboards jointing (with the use of reinforcing tapes) as well as masking screws heads. Can be applied manually with a float or sprayed mechanically. For use on typical mineral substrates, such as cement, cement-lime and gypsum plasters, concrete walls and plasterboards.