help - I've lost my magic custard instructions!

[MuchLessTiredNow]

we bought some of this some years ago, and used it to cast ds2's foot, but although we have enough left for dd, I can't find the instructions!!! does anyone have any?

What is magic custard?

It's a powder that you mix with water (can't remember how much!!) to make a latex mould, which you put a dc's hand or foot into and it sets after 2 mins, then you take out the hand,(or foot) and fill the hole with plaster of paris and you have a little tiny cast of a baby's hand or foot. Looks great, if I could only work out what the ratio of mixing is

Probably too late but it is equally quantities of water to the mould powder (pot B, 1pot for babies, 3 pots for over ones) and for the casting stone powder it is: water - up to the mark on pot b to five scoops of the powder (times by three for over ones)
HTH

The mould mixture set too quick when I did it so it was rubbish for me but my sister did some really good ones.