In this tutorial I explain the basics of Vacuum degassing silicone to make bubble free molds. Degassing silicone, even really low viscosity silicone, will give you much better quality molds. In a future video I will be covering degassing of Polyurethanes for casting.
Materials used in this video:
TC-5140 silicone: https://bjbmaterials.com/catalogsearc...
Zip 301 Mold release: https://bjbmaterials.com/zip-me-301s-...
TC-800 Casting Resin: https://bjbmaterials.com/tc-800-a-b/
If you need a better degassing setup than what I am using here, Centerpointe offers an industrial scale Vacuum cart. I had access to one of these when I worked in a DFW area prototyping shop and it was magical!
https://learn.bjbmaterials.com/what-i...