Re: My paint is dull ?????
That depends on what is causing the dull gelcoat. Most likley it is oxidation and that is best taken care of with a variable speed polisher (not buffer) and a good polishing compound. Some like 3M and other's like other stuff. I have used the 3M polishing compund as well as turtle wax polish. Try a small area with the compound and the polisher. If it isn't working well, you can try to wet sand with 1000 or 2000 grit. Be careful though as who knows how thick the gelcoat is. If you sand, you need to polish after that.
When you are all done, wax it several times with a good carnuba wax. I use the 3M for that as well.