Thanks to Grant for explaining what type of supplies to use when wetsanding and the pics of the process, but could somebody explain the steps that go into wetsanding in a little more detail? Do you spray water on the boat and start sanding? or is there a certain type of "wet" sandpaper that I need? I start to get sick when I think of actually putting sandpaper to my boat's gelcoat. But I have some serious scratches that need to be fixed. Thanks for any help.
go to an auto paint store, theyll lead you in the right direction, id recomend picking up a soft sanding pad while your there to help cut back on finger marks..yes you should get special paper, most 1000-3000 grit is made for wet sanding
I used a spray bottle with a few drops of dish washing soap. This is what I used for water. Get the paper and the surface real wet.The sop helps move the debri out of the way.
1000 grit for the pretty good scratches. 1500 for the medium scratches 2000 for the ultra fine scratches
I found it best to NOT get to close to the edges or hard to reach places with 1000 grit. (IE rub rail or cleet's)
Example you have a scratch in the center of a easy to get place. Use the 1000 grit on the scratch itself. Then use the 1500 on a aera that covers the the aera you just sanded with 1000, then use the 2000 grit to go over the aera you sanded with the 1000,1500 never getting to close to the edges like the rub rail. try to stay away from thoes aera's because its real hard to get to all the sanding scratches out of tight aera's Try to feather your sanding if you have a light color like white it should be pretty easy, I found the a hand held flouresant light will help show scratches that normaly would be hidden. Use the flouresant lamp to show what you missed. (Kind of like how they use the Black Light on C.S.I) LOL Start out with a small test aera to see how much work you are in for. Then you will have a head's up on how much time its gonna take you to do the job.
I have wet sanded two MasterCrafts a 1988 190 and a 1989 190. I used 1500 and then 2000 sand paper then buffed them out with polish and then a wax. When wet sanding I would just hold the garden house with one hand and sand with the other. I would turn the water on about half way. The boats came out great. This is no small job it takes some time.