>>9906080Not the person you quoted, but if I may chime in.
There is resin rubber too. I don't know for sure, but I'm assuming most artist keshi is made with cast flexible resin.
I've seen movie props being made with PT Flex 20, but those are big pieces and they're really bouncy, not really the "eraser" feel of keshi.
I've used flexible resin for toys before (pic related) and they were a bit more like keshi, but I don't think the feel was 100%.
It would take a lot of experimenting to find the right stuff.
But if you're not particularly anal like me, yeah most flexible resins will do.