For nearly 10 years, we have been designing casting mold models since we started casting our own pen blanks. We currently offer our handcrafted Silicone casting molds in Blank, Block, and Tube-In Series. We also have our own line of CNC machined HDPE casting molds (not the less expensive cutting board quality). Our design can be fully disassembled and prevents screws from stripping threads which commonly happens in home-made molds.
If you are looking for something we do not currently carry, just ask! As veterans of the casting industry, we have tried all the currently available vertical or adjustable plug designs at some point in the past, and we would be happy to share our experiences.
Mold release sprays help to extend the shelf life of our molds. We recommend Stoner Themoset for Polyester and Epoxy Resins, and Stoner Urethane for Urethane Resin.