Uploaded September 2019 | Updated September 2026, 1 week ago

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I made a catalyzed silicone rubber mold using a Coyote Skull and then poured a molten metal alloy made out of tin and bismuth. The result is a 5lbs solid metal skull doorknocker. Parts of the coyote skull where thin and delicate so I used modeling clay to make those parts thicker prior to creating the mold.

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The Cerrotru alloy I used has a very low melting temperature so I was able to melt it all with a plug in hot pot.

Links:

Cerrotru Tin + Bismuth Alloy:
purityalloys.com/Shop/product/cerrotru-alloy


Melting pot
amzn.to/2nZ6aGx

Mold Max 60 catalyzed silicone rubber
smooth-on.com/products/mold-max-60

Best Glue Gun Ever!
homedepot.com/p/RYOBI-18-Volt-ONE-Cordless-Full-Size-Glue-Gun-Tool-Only-with-3-General-Purpose-Glue-Sticks-P305/300335930


Modeling Clay:
amzn.to/2niWUwx


For additional projects and information check out our website:
homemade-modern.com