Fast A1 is a ready-made acrylic putty compound for finishing and decorative works in construction. Thanks to its properties, it is ideal for final puttying on seasoned cement-lime plasters, lime or gypsum plasters, plasterboards, concrete surfaces for all types of paint coatings. It can also be used to supplement cavities on walls and ceilings indoors, as well as pointing plasterboard reinforced with tape.