I suspect the problem you are having is air bubbles mixed in with your
plaster. You need to mix it very slowly sprinkling a little powder into your
water at a time and slowly mixing with your hand (with a rubber club on it)
No rough stuff to introduce air. You need to keep gently stirring it from
the bottom until you get it to a thick cream consistency.
You can paint on a quick coat of plaster into your mould (with a release
agent on it if needed and then slowly pour the rest in. Once its in give the
mould a few firm taps and sit it hard down on the table or floor, before it
starts to harden........this releases air bubbles stuck in it.
Hope this helps
----- Original Message -----
From: "Krista Ranly" <firstname.lastname@example.org>
To: "ArtsEdNet Talk" <email@example.com>
Sent: Thursday, October 23, 2003 9:34 AM
Subject: Need help tonite! ( Plaster mask problems)
> Thanks for reading this message!!! :)
> I am currently doing plaster masks with my 5th grade...never tried it
> before. Today when my first class took their masks out of the molds, they
> had air bubbles, holes, etc. on the front of their masks. I had them use
> the inside of their mold so it would look smooth (or so I thought). Is
> there a way to use the inside of the mold and get a smooth appearance
> without the holes and bubbles? Or, does anyone have recommendations for
> using the outside of the mold? Also, any recommendations on how to paint
> these plaster masks would be greatly appreciated since I'm experimenting
> with it as we speak.
> Thanks so much!
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