This tutorial on how to cast metal parts from 3D printed silicone molds is a perfect example ... Smooth-On Mold Star 15 that can withstand heat up to 450 °F (232 °C), which he points out is ...

As [Formlabs] points out in a recent video, there are at least three other routes to create silicone parts that utilize 3D printing technology that might fit your application better, especially if ...