Dendroboard banner

polystyrene

  1. Parts & Construction
    I have seen so many posts about how Polystyrene may be unsafe for amphibians and so many posts with backgrounds made of it. I want to make a background but don't want to use GS like I did for my last one. I was going to use Polystyrene, covered in grout and then sealed with drylok. Should I...
Top