|eruttan,
|Thanks for the foam suppliers.

Happy to help!

| They import Dow Styrofoam from Europe, as
|no one makes it in Aus.

Disappointing.

| The HD-X is the 700 and has been pretty much superceded by the 400 for the usual uses (building, insulation, etc). They will supply the 700 if I buy a container full, as it comes from a different factory to the 400.

Well, groper (and the math)said the 400 was good to 676gsm per side. So, perhaps it is still worth testing? Although that 'superceded' line sounds like a marketing guy made it up.

If all the 700 leads goto to dead ends in Au, then perhaps us XPS curious could post you some.

What size would you need? Do you have any interest still?