A couple of you guys my laugh at me for asking this, but I'm still trying to understand why you would ever need to wetsand. Is this just for really deep scratching?
Also if you use touch up paint you'll have to wet sand to get the paint blob flush with the ClearCote, and then you can polish to further refine it, remember first go one diagonal direction and then another diagonal direction
Block wet sanding (finishing paper and a sanding block) is the most effective tool for paint defect removal; because of its linear process you abrade the paint surface flat until the defects are removed.
Todd has a very nice writeup on his site about wetsanding with plenty of diagrams, graphics, before, during, and after shots of his wetsanding work on this Ferrari. ferrari1
Here is a sample piece I painted . I added defects to explain color sanding. Even the best of product-gun and painter-the finish is never without a defect. The flatter the paint-the better the reflection. All my paint jobs whether show or not get color-sanded Color-Sand "How To" - Chrysler 300C Forum: 300C & SRT8 Forums
im sorry, im not trying to jack this thead just a quick question. I have a clear glue like mess on the hood from bird crap or tree sap that did not come off with a wash or claying. Does this need wet sanding?
probably not. even if it does you need to remove all the residue first try some goop or 3m tar adhesive remover. it would only need to be wetsanded if it etched the clearcote. and you may want to find some one with some experience doing it