How to Make a Latex Mold

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How to Make a Latex Mold
33 Steps
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1
Find your parting line

Find your parting line

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To make my parting line using foam core I cut a circle slightly smaller then the diameter.

To make my parting line using foam core I cut a circle slightly smaller then the diameter.

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Fit it on your parting line.

Fit it on your parting line.

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Fill in gaps with oil clay.

Fill in gaps with oil clay.

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Create a ridge all the way around your parting line to key the two pieces of latex together. Use additional keys to orient the Pates together and for keying the plaster mother molds together.

Create a ridge all the way around your parting line to key the two pieces of latex together. Use additional keys to orient the Pates together and for keying the plaster mother molds together.

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Spray release.

Spray release.

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First coat is thin for detail.

First coat is thin for detail.

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Create a flange that covers past the ridge.

Create a flange that covers past the ridge.

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If you can store your brush right in your latex that's the best.

If you can store your brush right in your latex that's the best.

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Let each coat dry. The white parts are not dry yet.

Let each coat dry. The white parts are not dry yet.

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All dry.

All dry.

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Next coat.

Next coat.

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Again.

Again.

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After several coats, incorporate sponges to key the latex into the mother mold.

After several coats, incorporate sponges to key the latex into the mother mold.

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Many coats. Completely dry.

Many coats. Completely dry.

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Now for the mother mold.

Now for the mother mold.

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Create a flange larger then your latex flange.

Create a flange larger then your latex flange.

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Flip and clean up.

Flip and clean up.

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Release.

Release.

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Repeat.

Repeat.

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Final coat on side two.

Final coat on side two.

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Not very happy the latex flanges curled.

Not very happy the latex flanges curled.

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I clamped the curled latex as I made the second mother mold.

I clamped the curled latex as I made the second mother mold.

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Drilled for screws to hold the finished pieces together.

Drilled for screws to hold the finished pieces together.

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