joint compound

Hello! So decided to redecorate a bedroom ourselves. Removed wallpaper, scrubbed, sanded, cleaned, primed, skimmed and one coat of primer/undercoat. My issue is I have a few areas where I can see 'steps' from where I've skimmed, my fault for not sanding well enough in these areas. Can I use...

Someone told me that you can’t actually use the gyproc Skimcoat stuff over top of the gyproc joint compound (multipurpose) because it’s sort of incompatible, something about the skimcoat being a veneer plaster and putting over joint compound is wrong. He said skim the whole surface with joint...

Hi all. Please help me clear up confusion from google and youtube. the job is small, finishing a relatively small wall area for an understairs WC but has plenty of inside corners Iv starting the jointing process and taping using joint compound and while i feel the finish is a little rough (im...