gypsum

I need some advice please. Novice DIYer who’s been doing a lot of research on how to fix my walls myself… I stripped the wallpaper off the wall here expecting to be able to paint it. Turns out the plaster is in a poor state. Some of it is hollow. So I started to remove parts of it but stopped...

Hello I was just after some advice All the plasterboards I can find contain gypsum is there any out there that you know of that don't contain gypsum? Also besides lime plaster, what other alternatives are there to gypsum plaster mix for skimming ? Any help will be apprciated