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how to make a mold
How to make a mold? The only way was to produce your own masters, molds, and cast them yourself. At certain times today the same applies. Here's how to do it, or not as the case may be.
How to make a mold original effort was produced in 'Plaster of Paris'. This is not the best of mediums as the molds break down quickly and the cast figure was of poor quality.
How to make a mold danger
There is also the danger that if the mold wasn't dry the hot metal would make it explode!
My discovery of silicon rubber made mold making and casting possible. The finished product produces not only flexible but can make it possible to produce in excess of 200 figures.
How to make a mold finished
When finished with, you can cut it up and with care re-use it to pad out the latest mix. It is important that this rubber is clean.
how to make a mold flow
1. An original from which I require 4. It is just quicker to make a mold and cast them.
2. Obtain some type of child's building bricks to make the mold in.
3. On an base approximately 15mm larger than the figure build one layer of bricks.
4. Fill this with modeling clay, leaving a hole for your original figure to fir into.
5. Build up the modeling clay to the 'high line' of the figure.
6. Build another layer of bricks.
7. Push 3 or 4 pencil holes on the modeling clay to align the two half's of the mold. (mold1)
8. If there is any piece of figure protruding for how to make a mold, e.g. an elbow, run some florist's wire from this to the outside of the building bricks to allow the escape of any trapped air. Holding the wire in place with modeling clay.
9. how to make a mold is important to use some type of release agent. I use 10% petroleum jelly to 90% white spirit. Apply two coats to everything; just to be sure you have missed nothing, not forgetting the building bricks.
10. Mix your silicone rubber, pour in and leave to harden.
11. Remove the building bricks and modeling clay.
Hold the silicone rubber and modeling clay with the thumb and fore finger. Slowly peel the modeling clay so as not to disturb the figure.
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