Paint finish marred. See
painted surface.
Scratches. Rub a hammer head over the scratch. Press down hard. Then rub with a wax stick of the proper color.
Stains. See
wood.
Pieces of hardboard separated. Bolt or rivet together, or coat surfaces with Weldwood plastic resin glue and clamp pieces together overnight.
Hardboard separated from another material. If the other material holds nails and screws, hardboard can be rejoined to it with either of these. Otherwise use bolts or rivets or appropriate glue (see
household decorative accessories and use same glues as specified for wood).