Join Date: Apr 2006
Thanked 168 Times in 165 Posts
Rep Power: 12
Re: port light material
The cast stuff is supposed to be better. The acrylic generally cheaper, weaker, but more scratch resistant than polycarbonates.
But if you browse the web sites from PP&G, GE, Rohm & Haas, the big companies that each make at least two dozen grades of the stuff, you may find the choices are interesting. At least, far wider than you'll find if you just go to a local glazier and say you want plastic.