What is wet sandpaper and how does it differ from dry sandpaper in terms of its application and effectiveness?

Wet sandpaper is sandpaper that is designed to be used with water or a lubricant to reduce friction and prevent clogging. It is typically used for wet sanding, which is a technique used for smoothing surfaces and finishing materials. Wet sandpaper is more effective for achieving a smooth finish on surfaces that are prone to overheating or clogging when dry sanding. Dry sandpaper, on the other hand, is used without any additional lubrication and is better suited for rougher surfaces or materials that do not require a fine finish.