product called ''''New Glass''''
I first learned about NewGlass 2 when it was highly recommended to me by sailors I trust, they said they never had problems with it. I bought a 1977 boat this spring, and the topsides were chalky. After 4-5 applications, they look great!
Make sure the gelcoat is clean before you apply it, and apply a coat or 2 every season after that.
Curious to hear what were the supposed problems. You could probably get more info at their web page: http://www.newglass2.com