Exterior wood filler is a versatile compound designed for repairing and filling cracks, holes, and other imperfections in outdoor wood surfaces. It is typically made from a combination of wood fibers, resins, and water-resistant additives, providing a durable and weather-resistant finish. Exterior wood filler is easy to apply, dries quickly, and can be sanded and painted to match the surrounding wood. It is commonly used to repair wood siding, trim, decks, fences, and other exposed wood surfaces, ensuring a seamless and aesthetically pleasing appearance.