Thanks ken

Ditto! Mine came out beautifully!

NoBones is correct! My neighbor turned me on the the Aqua Buff, stuff is really good. I would start with the 1000 then maybe move up to the 2000 to finish, here's what you are looking for. If you go the fine sandpaper first you may only need the 2000. Good luck and Aleve works well for the sore muscles. :)

https://www.ebay.com/itm/Aqua-Buff-1...oAAOSwA3dYlhdw

Here ya go....

This test area was done at least 5 years ago. Has not been touched since !

Attachment 16592

Wet sanding a twenty by hand is very doable. Factory gel coat, measured in mil’s, is normally about a dime thick. Probably thicker on older models. Unless you want a different color, you’ll be amazed at how the oxidation can be removed up to 100%. That yellow is classic and after years of detail experience always remember one thing:

Cars are painted.
Boats are gel coated.

Just go bump your dock, or ask me how I know.

Vezo.

Just for grins....here's a cross section of the transom skin off a 1972 23' I/O CC. The glass is 1/4" thick including the red gel coat. And let me tell you that stuff gets on everything when you grind it!!

The deck is a little brittle so i think the new layer of gel coat will be great for the longevity of the boat.. the color sanding on the hull should come up nice..

!

DA sanders work well for this job.

IMHO, if you're sanding something that potentially had wax at some point, use wax remover first. That will buff right out