I used foam a lot to have a smaller heat transfer from one material to another. Making slow temperature sensors for example. I hoped to find an equivalent in INSL, but apparently it just blocks ANY heat transfer. Why exactly was foam abandoned?
It is not exactly like foam. The insulation is 100 %. I used foam to create a heat gradient within Foam. For example, you could get a 200°C output from a 1500°C source. Too bat it is not possible anymore.