Plaster casting help needed

Plaster casting help needed

Post by kin » Wed, 17 Nov 1999 04:00:00



Hi all, sorry about the cross-posts, but they're germaine to the
subject matter...

I'd like to make a catacombs for a haunted house. I want to cast a
skull (face) about 6-800 times. What's the best way to make a mold to
pour plaster into?

Any help at all would my most helpful...

You can post here or e-mail me-


thanks and again sorry for the cross post

 
 
 

Plaster casting help needed

Post by Dan Specto » Wed, 17 Nov 1999 04:00:00


I have a skull mold, one-piece, makes a solid-plaster skull, always does
well at Halloween. For that quantity you need a bunch of molds or a gang
mold so you don't mix hundreds of times. Contact me directly if interested.
--
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Quote:

> Hi all, sorry about the cross-posts, but they're germaine to the
> subject matter...

> I'd like to make a catacombs for a haunted house. I want to cast a
> skull (face) about 6-800 times. What's the best way to make a mold to
> pour plaster into?

> Any help at all would my most helpful...

> You can post here or e-mail me-


> thanks and again sorry for the cross post


 
 
 

Plaster casting help needed

Post by Battersb » Thu, 18 Nov 1999 04:00:00


Quote:

> Hi all, sorry about the cross-posts, but they're germaine to the
> subject matter...
> I'd like to make a catacombs for a haunted house. I want to cast a
> skull (face) about 6-800 times. What's the best way to make a mold to
> pour plaster into?

Kin, if I was undertaking this project, I would make a case pour mold.

You don't give any extra details. Is the skull (face) "life" size??

Are you wanting to cast full skulls with, or without the lower jaw,
moveable jaw, or locked??

Or, just a low relief face??

Assuming a full skull, jaw locked in place:

Fix your model to a suitably sized table, and prepare it for a
polyurethane mold.

I would use the SmoothOn Evergreen 20.

Clay over your model with about one half inch of clay, covering the
model with a plastic bag first.

Now you can produce a pouring case.

Remove the pour case. Remove the clay. Apply release agent. Put the pour
case back in place.

Pour the polyurethane into the case. Remove the pouring case when the
*** is fully cured. Leaving the *** mold in place on the model.

Now make a case for your first mold. Remove this case, and the first
mold, leaving the model fixed on the table.

You can now begin casting into the first mold.

Release agent again on the model if needed. Put the pour case back in
place.

Pour *** in this case for the second time. Remove the pouring case
when the *** is fully cured.

Now make a case for your second mold. Remove this case, and the second
mold, leaving the model fixed on the table.

Now you have two molds to cast into. I would repeat this until I had a
dozen molds, or more, depending on how much time you have to devote to
casting these 800 pieces. If you have plenty of time, make one mold, and
pour them one at a time. 800 times 30 minutes equals ten forty hour
weeks. 12 molds at a time could be done in less than a week (casting
time).

Or, a moldmaker can provide the mold(s) for you. I have three different
skulls available, with or without the lower jaw. Mine are taken from
actual human skulls, with all of the thirty two teeth intact.

Post back, and let us know how your project comes out, and, I would like
a copy of a photo of the eight hundred skulls all lined up like ducks in
a row.

Good luck,
Battersby.
--
T.M. Battersby, stuccoist.
http://www.FoundCollection.com/

Quote:
> Any help at all would my most helpful...
> You can post here or e-mail me-

> thanks and again sorry for the cross post

 
 
 

Plaster casting help needed

Post by kin » Thu, 18 Nov 1999 04:00:00


Thanks people.... the hints are MUCH appreciated.