 Re: Vermiculite cure time.
Well, mine took about a week to get hard, and continued getting still harder for a week after that. I think I'd recommend waiting for a week before starting the dome - its the cement component which hardens after all, and that just needs some time.
However, I remember reading a thread recently (wish I'd read it when I was at that stage) which says you shouldn't cover the vermiculite layer like you do cement, because it already absorbs so much water while mixing.
Hope that helps...
Frances |