This site will look much better in a browser that supports current web standards, but it is accessible to any browser or Internet device.

NOTE: Please search for your keyword(s) before submitting a question.

Printer
Friendly
Pages

If your search did not turn up an answer, click here to submit a question.

Plaster Molds List of Categories

Page 1 Page 2

Ho do I hang plaster wall pieces?
Can I use your silicone molds for plaster?
Why am I having trouble demolding my latex molds?
What is the lifespan of a latex mold?
Can I allow my castings to remain in the mold overnight?
How do I clean latex molds?
What is the best way to store my latex molds?
Is there a way to improve the strength of my small castings?
Do you sell Hydrocal?
Can I use plaster from the local building center?

Ho do I hang plaster wall pieces?

For all types of plaster hangings I use a piece of wire bent into the shape of the Greek letter Omega. As the plaster sets I position the leg portion into the plaster at an angle to create a hanging loop. Larger hangings should have 2 of these. For smaller hangings some folks like to drill a hole in the back to fit over a nail, but I find this does not work as well and increases the chance of cracking the plaster.

To top
Can I use your silicone molds for plaster?

Yes, they work well for plaster, but you will need to plug the wick hole with a small piece of wire or toothpick.

To top
Why am I having trouble demolding my latex molds?

Most of the time this is caused by failure to lubricate the outside of the mold before demolding. When ready to demold, dip the entire mold in water, then rub one drop of dishwashing liquid over the entire outside of the mold. The surface is now slippery enough to slide easily over itself. Failure to do this will normally result in a ruined mold.

To top
What is the lifespan of a latex mold?

If well cared for, the average life expectancy of latex molds is 40 to 60 castings. Molds with severe undercuts (i.e. that need to be stretched further) will generally not last as long as those without undercuts (such as a pyramid).

To top
Can I allow my castings to remain in the mold overnight?

You could, but it is not very good for latex molds, other molds are less sensitive. Castings should be demolded as soon as hardened to minimize contact with the mold. Generally when th mold gets hot to the touch it is ready for de molding.

To top
How do I clean latex molds?

Most media used for casting in latex molds (plaster, wax) is harmful to the latex. Immediately after use the mold should be washed with dishwashing liquid and water, then rinsed thoroughly.

To top
What is the best way to store my latex molds?
- Clean them thoroughly
- Allow to dry - do not store them wet
- Place them loosely in a drawer or carton (they must not be exposed to long periods of light
- Make sure they are not twisted or kinked since they will eventually develop a memory of that position
To top
Is there a way to improve the strength of my small castings?

If increased strength is needed, we suggest using Hydrocal (Ultracal)in place of plaster. It is far stronger, although a bit more expensive.

To top
Do you sell Hydrocal?

Yes, but we call it Ultracal

To top
Can I use plaster from the local building center?

Yes. That is what we use for most castings, although for some castings Hydrocal (Ultracal) will work better.

To top

Page 1 Page 2

Was this page helpful?

NOTE: Please search for your keyword(s) before submitting a question.

If your search did not turn up an answer, click here to submit a question.

Home > FAQ

Click here for current shipout time on orders