Ronseal Multi Purpose Woodfiller can be applied straight from the pack and gives professional, long lasting, tough and durable repairs. The flexible formula resists shrinking and cracking and it can be stained, varnished or painted. For interior and exterior use. Ronseal Multi-Purpose Wood Filler is ideal for use on doors, window frames, screw/nail holes, cracks, gaps, skirting boards, floors and other wood surfaces.