Plaster Crafting With Latex Molds
- Place the rim of the mold on a piece of cardboard.
- Trace the outline onto the cardboard. (see illustration
- Cut out just inside the line (about 1/8 inch
inside). See illustration below.
- Fill the mold with warm water. This will be
the approximate amount of water needed with the mixed plaster (add a
- Pour the water into your mixing bowl. Sprinkle
the plaster in while stirring until all the water is absorbed.
- Fill the mold halfway with plaster and knead
gently to release any air bubbles trapped in the undercuts.
- Place mold into the cardboard prepared earlier.
- Fill the balance of the mold with plaster.
- Tap the mold to release any trapped air bubbles.
- Suspend the mold in a glass or jug. Water level
should be as high as possible without spilling over.
- Allow the plaster to harden.
- When fully hard, remove the mold from the cardboard.
- Dip the mold in water.
- Rub a drop of dishwashing liquid over the entire
outside of the mold to lubricate it (yes - the outside
of the mold).
- Peel the mold off of the casting.
- Molds should be washed with soapy water, then
rinsed before storing. If storing for long periods, it should be dusted
with talcum powder.
- Store in darkness since excessive light will
break down the rubber.
- Latex has a memory so do not store molds in
a squashed position.
NOTE: Some molds do not have a rolled lip as illustrated
- just make sure the rubber overhangs the hole in the cardboard.
|1. Place on Cardboard
and trace around the rim of mold.
||2. Cut out just
inside of traced line.
Here For Latex Molds
Disclaimer: The information presented
here is accurate to the best of my knowledge and common plaster crafting
practices as of the time of this writing - February 2006. The author and
the publisher accept no liability for the use or misuse of any of the
information presented in this article. This articles is presented for
informational purposes and is used at your own risk.
Author: Bob Sherman
Publisher: Bobby's Craft Boutique Inc.
This article is provided free of charge
for personal use. No portion of this article may be reproduced for publication
elsewhere without express permission from Bobby's Craft Boutique Inc.
with the following exceptions:
- Non profit organizations such as religious groups,
scouts, 4h, etc... may use this information without permission for printed
materials provided it is used without modification and credit is given
to both the author and Onestopcandle.com
- Reprinting to the web is prohibited without
permission, however web sites wishing to link to this article may do
so without permission.
All other requests need to be submitted via our
reprint request form.