RJH wrote:
Following a recent roof leak, and a damaged lath/plaster internal
wall, I've decided to have a go at plasterboard/tape/jointing
compound. It's only a 1m x 2.4m (wxh) section, and the board's up.

Could I get away with not sealing the PB? Or is there a substitute? It
only seems to come in big tubs at £20+.

If it's just for painting, you don't need any primer, just fill, sand and
paint.

Don't ever stick wallpaper over an unskimmed plasterboard unless you intend
replacing the board next time you strip the paper, the paper of the
plasterboard comes off when it's steamed / soaked