"Dave Liquorice" wrote in
ll.com:


you can sort old plaster out with Tartaric acid,

Filed away for future reference... Mind you I think everyone ought to
learn to plaster with old stuff, in small quantities. The fact it sets
so fast forces you into the proper "whack it on and leave it" method
of working rather than "put it up, smooth it, put more on in the
hollows, smooth that, faff about, why won't that buldge smooth out any
more? ah it's set..."

YOU WERE WATCHING!! and that's just filling cracks!

Thanks to all for the info, I wish they'd put it on the bag

mike