Question: I saw your YouTube video https://youtu.be/zWB2Sf20aMo?si=HfNrkzKA-xFQ_Ijn and am now interested in your product. I've never worked with metals before and I want to try using tin to cast something that is mostly flat and 4.5 inches by 5.75 inches. Do you recommend your product for making a mold for that and if so, which should I buy and how much for that area?
Answer:
This video is a great place to start. In this video, we use a low melt metal (tin-bismuth) that has a very low melting temperature of less than 200 F. We used Wood’s metal, but it goes by other names…here’s a link to some on Amazon (https://amzn.to/4bU1zZG ). What’s good about this metal is that it can be used directly in our ImPRESSive Putty that can handle temperatures up to about 205 F (but not the ComposiMold, which can’t go above about 150 F).
If you’ve never done mold making, then that’s a good place to start. You’d need some of the metal, and probably a pound of the Impressive Putty Mix (on Amazon https://amzn.to/3Ih0eP0 ) This is reusable, so it’s good for lots of different shapes and you can experiment as much as you want…actually the metal can be remelted as well…so between these two things you can experiment as much as you want.
The next step to higher temperature metals would be to the tin as you wanted. You can still melt the tin in your home oven, but it’s a lot hotter, so you need to make an in-between mold…or the lost wax process. Here’s the process in video:
https://youtu.be/6fTn6I9Fvk0?si=pwlXZvSU92uqCAI4
So that’s what you’d want to do when you’re ready. I’d go with the 3 pounds of the USED ComposiMold (https://amzn.to/3SX7pAM ) or a ComposiMold Original 20 oz. size would also work, but it’s the same price as the used material. And I’d get some Bubble Buster (https://amzn.to/3wEk97D ) and some plaster additive(https://amzn.to/48w4jtc )…I’d get the plaster at the hardware store because it’s cheaper there…
And if you want to go to higher temperature metals, which I don’t recommend until you’ve done a few tin castings, then you need to start getting some more equipment…here’s a video on that using the same lost wax process… https://youtu.be/-ZZdYqRPbHg?si=ADsJjXVwrfWE4jSJ
And any questions, please ask, Thank you, Stan from ComposiMold