General description Ronseal High Performance Wood Filler is a chemically bonded filler and catalyst designed for tough repairs to virtually any wood damage. It is suitable for both interior and exterior applications, filling holes and cracks without shrinking or cracking. This high-performance filler can be used on various surfaces, including window frames, sills, doors, and door frames, and is available in three colors: Natural, Dark, and White. Technical specifications Colour: White Size: 1kg Drying Time: Approx. 30 minutes Durability: Flexes with the wood to prevent shrinking or cracking Finish: Matt VOC: Medium Installation Before starting, remove any soft wood if repairing rotten wood and treat it with Ronseal Wood Hardener for better adhesion. Mix a pea-sized amount of hardener with a golf ball-sized amount of filler until uniform in color. Test the filler on a small area to ensure color satisfaction. Pack the filler into the hole, leaving some raised above the surface, and