ORIGINAL: bigfiver69
Those wheels look killer - nice job!! And it's sort of inspring me to go metal wheels on my latest project, and not resin.
So... was the female mold silicone then? I had assumed that the hot metal would have melted it.
Nice
Shep
Most rubber can handle the heat that these low temps alloys carry with them. Remember they are using silicone for cooking utensiles and oven mitts now.