Why is wet sanding good? 

Wet sanding can be used for metalworking, woodworking, plastics, and automotive applications. Wet sanding is sanding a material with a liquid such as water to remove particles from dry sanding -- providing a smooth finish for your workpiece. Wet sanding can also ensure to remove scratches from dry sanding, while also avoiding excessive stock removal. Uneven paint jobs can be frustrating, so wet sanding can also help with correcting and removing debris from the painted surface. Wet sanding wood , like furniture in your home, can be beneficial for flattening or reshaping the surface. It will give a glossy finish to your workpiece. Make sure to avoid over spraying or wetting the job you are working on -- if it is wood -- because wood tends to soak in water and if you use too much, it will lead to unwanted results. Wet sanding metal will give you a shined surface and a perfected end result on your workpiece. Make sure to reapply water when dealing with metal for a maximized smooth surface.  Wet sanding drywall can minimize the debris and dust on a wall when prepping to paint.  Most individuals that deal with autobodies like to wet sand cars because it can get scratches off of the surfaces – even deep scratches. Also, much like wet sanding drywall, wet sanding a car can remove debris before painting. A detergent should be used along with water for automobiles. Essentially, wet sanding is the right option for you if you are looking for a glossy finish, for example – a glossy finish on cars or furniture. Wet sanding can give you a professional result so it is highly recommended to not skip any steps. Skipping steps may be faster or easier, however, you may be regretful in the end. A good product to purchase is the 9 x 11 wet/dry sand paper which is made of an abrasive called silicon carbide. It has a latex backing which will be more beneficial for you compared to a paper or cloth backing. The wet/dry sanding is also great because it can be used for both wet and dry sanding – hence the name. When dealing with grit sizes, it is best to start with a grit size of 600 to 1,200. Make sure to increase by 200 to 500 in order to get the result you want. So, if you start with an 800 grit for dry sanding, increase to a 1,000 grit when wet sanding. Dry sanding is great to remove stock and get a smooth surface, whereas following up with wet sanding will remove unwanted scratches and get an even smoother surface.