WHAT IS WET SANDING?
The process of wet sanding is when you use water or some sort of liquid solution as you sand in order to avoid build up of particles and debris. The reason it can come in handy is to prevent and remove scratches on the project you are working on. After you finish dry sanding, wet sanding can give you a nice and even finish. You start by dry sanding to cut down stock and shape the surface. You would then go in with wet sanding to get the best evenness and minimize those scratches and fine lines slowly – but surely. Wet sanding differs from dry sanding with the motions and movements; wet sanding is a linear motion whereas dry sanding is a circular motion. Make sure to use a light hand when wet sanding, as it does not remove stock.
Sandpaper companies and manufacturers carry wet sandpaper products that are specifically meant for these jobs – such as a sanding sponge or wet/dry sandpaper sheets. In order to use it properly, you should soak the piece of sandpaper in water (or the solvent of your choice) for at least 15 minutes before using it. This will make sure that you have the best finish as it removes bumps or lines from your workpiece. If you are looking for a more smooth and glossy finish, you can use oil instead of water. If you are working on wood or furniture in your home, it can be beneficial to wet sand because it minimizes the dust and debris from the surface. For wet sanding wood, you will want a 400 or 600 grit wet sandpaper dipped in water and a small amount of solution. Then, use a higher grit wet sandpaper such as 1000 or 1500. You can also use wet sanding in between coats of paint to ensure a nice and smooth finish. Along with furniture, cars and vehicles exteriors can be very sensitive, so using wet sanding can come in handy for this as well. Wet sanding can be a lot more delicate for cars, whereas dry sanding can be more devious. To polish metal, wet sanding is great for eliminating small scratches and giving shine to the surface. Start slow with a 180 grit wet sandpaper, making your way to the 320 grit wet sandpaper, and lastly, the 400+ grit wet sandpaper