I detail a 40 foot bridge every spring. When I first started it was in bad shape, it just wouldn't come back and took alot of effort. Now it's not bad. First I recommend using a rotary buffer with a good wool pad to compound, make sure your pads stay clean. Then follow up with a dual action buffer with a foam pad or by hand when sealing.
The products that finally brought it back to looking like new were from Gel Coat labs. They make a heavy cut and fine cut compond. Try the fine cut first, it did the job for me. Then follow up with their one step Polish. For a super shine and extended life layer on their surface sealant after that.
after you put the effort into that you can just do the one step once a year and you're good to go, although I'd still reccommend layering on the surface sealant too. It gives you that wow look and it's an easy on and off.
The products that finally brought it back to looking like new were from Gel Coat labs. They make a heavy cut and fine cut compond. Try the fine cut first, it did the job for me. Then follow up with their one step Polish. For a super shine and extended life layer on their surface sealant after that.
after you put the effort into that you can just do the one step once a year and you're good to go, although I'd still reccommend layering on the surface sealant too. It gives you that wow look and it's an easy on and off.