thanks v. much, that is plenty of good advice- sounds a bit more to it than i thought but reckon i'm up for it taking onboard all those precautions...
cheers,
hi, i want to cast 2 concrete blocks to support my roll-top bath in a modern decorative style...
i was thinkin of using conti-board for the mould as it would leave a smooth, though matt, finish and i can't afford to get the finished blocks polished...
can anyone suggest what mix i should...