About silicone mold vacuum remolding

I used to be engaged in the silicone mold line, according to what you said, open silicone mold can certainly, but the material is certainly not. You need ABS and silicone is too much difference, I do not know what you say the quality is how a profile? If the requirements are not high, it is certainly possible.

Silicone mold and plastic mold cost is certainly much cheaper, the two molds of the material demand is not high, and manufacturing costs are not the same. For specifics you can find a company that makes molds and ask for advice. I think your idea should be able to achieve, provided that the quality requirements are relatively low.