Post #648393 by Jürka on Wed, Aug 15, 2012 2:49 PM

As I mentioned in hello-topic ( http://www.tikicentral.com/viewtopic.php?topic=6&forum=1&start=3465&3468 ), I started to make my own Tiki who is portraying first man on this egg called world – Kumuhonua.

So... I carved my wooden guy and started make a mold for slip casting... I made my first (and worst so far) mold of constructional plaster. So my first question? Should I throw away idea of not using some special ceramic plaster which is around 5 times more expensive than constructional one? Is 20 euros for 25 kg bag normal price for it (for example in your countries)?

Is formsil and plastificator really important for slip-casting clay? It is again pretty expensive fun to buy them and some local internet shop said that it's "recommended"...

What kind of glazes you use or I should use? Is there some better and more trustworthy manufacturer for them? Botz? Some glazes does not need firing before glazing... Are them equal to ones which need firing before glaze?