Kim Lindaberry on tue 28 dec 04
Hello All,
All of this talk about mixing plaster made me think of a trick I
discovered. Here's one thing I found that helps when mixing plaster. It
is almost impossible to keep air bubbles out of any mix. Some places
have large vibrating tables that you put your bucket of mixed plaster
on and it shakes the bubble to the top. But who has a large vibrating
table. What I discovered is that those big personal back massagers (the
kinds with the hemisphere rubber balls on them) can be applied to the
side of a bucket and they will vibrate air bubbles to the top. I picked
up my massager at a thrift store for 5 bucks. When it isn't being used
for plaster work it still has a place in my studio doing the job it was
originally designed to do.
Kim
John Rodgers on wed 29 dec 04
There's lots of little tricks to remove air bubbles from plaster mix.
I bump my plaster bucket up and down on the floor much like a cakemaker
bumps cake mix to get rid of air bubbles. When the bubbles have risen to
the surface of the plaster, I spritz the surface with an alcohol mix.
This bursts the bubbles instantly. I then pour the plaster very slowly
from the deepest end of the mold so as it fills the plaster "moves" over
the surface of the model. At the same time, I bump the table with my hip
so the plaster spreads in bumps and starts. This breaks bubbles right at
the model surface and make for smooth pouring and smooth molds.
Regards,
John Rodgers
Chelsea, AL
Kim Lindaberry wrote:
> Hello All,
>
> All of this talk about mixing plaster made me think of a trick I
> discovered. Here's one thing I found that helps when mixing plaster. It
> is almost impossible to keep air bubbles out of any mix. Some places
> have large vibrating tables that you put your bucket of mixed plaster
> on and it shakes the bubble to the top. But who has a large vibrating
> table. What I discovered is that those big personal back massagers (the
> kinds with the hemisphere rubber balls on them) can be applied to the
> side of a bucket and they will vibrate air bubbles to the top. I picked
> up my massager at a thrift store for 5 bucks. When it isn't being used
> for plaster work it still has a place in my studio doing the job it was
> originally designed to do.
>
> Kim
>
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