Part two in the series of making a three piece fibreglass mother mold to house a latex mold of an Easter Island head sculpture. In this video we lay up the fibreglass layers using polyester laminating resin, MEKP catalyst and strand matting.
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In this video we make two basic latex molds. One mold is a latex mold of a concrete leaf and the other mold is a simple latex glove mold of a small Buddha statuette using Polycraft liquid latex and brushing on the latex with a paint brush.
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Part one in the series of making a three piece fibreglass mother mold to house a latex mold of an Easter Island head sculpture. In this video we concentrate on making the seams with aluminium foil, applying the release agent with consists of Carnauba wax and PVA solution.
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Casting with Crystacal R. Using a silicone mold to cast Crystacal R to make a strong durable plaster cast. Crystacal R is a hard white high strength plaster.
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Just messing around with a latex mold and making an ice cast of a skull.
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In this video we use plaster of Paris in various molds to create plaster of Paris casts. Useful for testing molds, creating a master cast and making plaster casts.
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Quick video using alginate to make a mold for a hand cast and an object. I had to use some out of date alginate, just to use it up and thought I would experiment with casting a hand holding an object which was/is a small ball based on a drawing I did a while back.
The video is a bit rough and ready and shows what not to do in parts, for example, pour your alginate powder into water, rather than pour the water into the alginate powder. Find yourself suitable containers to house the alginate in accordance to your project.
Try to release as much air as you can by tapping the mold after pouring the plaster of Paris into the alginate. Go careful when cutting the alginate away from your lifecast to avoid damaging your plaster of Paris cast.
The alginate used in this video is a 3/1 mix, which means 3 parts water to 1 part alginate. The plaster of Paris was mixed to a 50/50 mix, which means 1 part plaster of Paris to 1 part water or 50% water to 50% plaster of Paris.
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In this video we make a supporting mother mold for a latex leaf mold using fibreglass.
A concrete cast of a Gunnera leaf is used to make the latex leaf mold and you can find more videos on this channel related to making concrete leaves, latex molds, mother molds, etc.
Following on from the video on latex molding an ammonite fossil, we make a seven piece mother mold to house the latex mold. This video is a short and brief video showing the process and more in depth videos about molding can be found on the channel.
There are many ways to make molds and this video is showing how we make molds here at present, which is our preferred way – it works for us and what works for one person may not work for another.
The model in this video is a 500 million year old ammonite fossil which came out of the mold in one piece. The mold which has been made from the ammonite fossil is now ready to create replica fossils with concrete or any other appropriate material which is compatible with the latex mold.
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This video follows on from the video: Make A Two Piece Fibreglass Mother Mold: https://youtu.be/1FD08jlQoNg
In this video we attach wooden legs using fibreglass to the fibreglass mother mold. We also drill holes for bolts to keep the mother mold secure and in place, to keep the latex mold in shape ready for concrete casting.
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