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Author Topic: Metal Clay  (Read 1595 times)

Baldrick

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Metal Clay
« on: February 04, 2021, 10:00:52 pm »
Has anyone ventured into the use of metal clay for making small deck fittings ?   The product comes like a sort of plasticine material, it is basically a clay metal compound which can be shaped, moulded, pressed out by a die to any shape you want .  You just make your piece 10% larger than the finished required to allow for shrinkage. Small pieces can be fired  (After allowing to dry ) using a small gas torch. The material ignites and after about 10 mins on full heat (cherry red) you have a brass (also copper , silver ,gold , bronze.) solid metal fitting which needs a bit of cleaning up with a wire brush to de-scale.
If anyone has tried it I would like to know how you got on .
https://www.cooksongold.com/Precious-Metal-Clay/Prometheus-Sunny-Bronze-Clay-50g-prcode-855-1124&query=prometheus%20light%20yellow&channel=uk
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derekwarner

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Re: Metal Clay
« Reply #1 on: February 04, 2021, 10:09:50 pm »
Sounds interesting Baldrick.....but £11.99 for 50 gm.......that's about ...........£240.00/kilogram...... :o  .....


Probably discovered by ancient Chinese Alchemists thousands of years ago  :P ........Derek
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Derek Warner

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Illawarra Live Steamers Co-op
Australia
www.ils.org.au

Baldrick

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Re: Metal Clay
« Reply #2 on: February 04, 2021, 10:44:12 pm »
Anything that big you could not fire with a micro torch. A 50 gm packet is about the weight of a domestic desert spoon.  Quite a lot of cleats and fairleads
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RST

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Re: Metal Clay
« Reply #3 on: February 05, 2021, 01:41:17 am »
Noticed it needs kiln firing at c800deg plus for 30mins.  Is that better than other methods -what problem does this solve please?
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SJG001

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Re: Metal Clay
« Reply #4 on: February 05, 2021, 04:38:02 am »
Know this material and mostly seen it used for jewelry making.. If not cured properly in the 800-1200 deg C kiln it is very brittle and friable


Probably cheaper to make a prototype, make a silicon mold and  use epoxy resin and metal pigments
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nemesis

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Re: Metal Clay
« Reply #5 on: February 05, 2021, 03:25:07 pm »
Hi, If using silicon to make a mould make sure that it is compatible with the material you are going to use to fill it. I once made a master, vacuumed the silicon, made the mould and put to one side. A week down the line, still not set. Problem was the reaction between the metals of the master and silicon. What a costly mess. nemesis
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