Originally Posted by Bacchus
Gel coat restoration is depensant on condition. One step works for surfaces in very good condition but not for ones beyond that.
You'll need to try several approaches and choose the least aggressive one that works and provides sn acceptable finish.
A real bad gelcoat may need fine wet- dry sanding followed by xn aggressive compound and then a polish / swirl remover before a final coat of wax or polymer to protect the shiney surface.
The final coat provides protection but you have to get the surface where you want it before the last step.
Lots of videos online for good how to.
Admittedly, I just don't have the time or gumption to tackle the process that you've described above. We really did want to seal the gelcoat with a good wax though because the raw gelcoat gets looking so bad in a short time. I threw in the towel after my polishing attempt and got the yard to give it a professional compounding/polishing/waxing treatment. I have to say, we're quite happy with the way they rejuvenated the antique gelcoat! I might not look as good as new but I guarantee it looks better than it has for many years and the best thing is, it'll stay looking like that longer than out first trip out of the creek!