How does waterproof sandpaper work?

Waterproof sandpaper is specially designed to be used with water or other liquids, which helps reduce dust and improves the finish. It works by attaching the abrasive grains to a flexible, water-resistant backing, allowing you to perform wet sanding. This not only helps achieve a smoother surface but also prevents the abrasive grains from clogging with dirt and dust, extending the lifespan of the sandpaper. It is perfect for both wood and metal, especially when aiming for a fine finish.