General description Ronseal High Performance Wood Filler is a chemically bonded filler designed for durable repairs on both interior and exterior wood surfaces. It provides extremely tough repairs to virtually any wood damage without shrinking or cracking. This versatile filler can fill holes and cracks of any size, making it ideal for areas such as window frames, sills, doors, and door frames. Available in Natural, Dark, or White, it dries quickly in approximately 30 minutes and remains flexible to prevent future damage. Technical specifications Weight: 550g Colour: Natural Drying time: Approximately 30 minutes Durability: Flexes with the wood, resistant to shrinking and cracking Sizes available: 275g, 550g, 1kg VOC level: Medium Installation Mix a small amount of hardener with the filler until the color is uniform. Apply the mixture into the hole or crack, slightly overfilling to ensure proper filling. Smooth the surface with a knife before it hardens. Allow approximately 30 minutes