|In case you haven't seen it, in the following link you can see how the 700kPa (100PSI) XPS compares to other XPS and Divinycell H60 in compression..
|
|http://www.trinardo.com/y.a.t-yetanothertrinadofoamcompare3

Yes, I did see. This pic of the F700 vs H60 troubles me.
http://www.trinardo.com/_/rsrc/1472867876393/071021_MaterialTestDSCN3008red-medium.jpg

In this pic, H60 and F700 were stacked and compressed excessively.

Does H60 not recover from being crushed? Did the F700 reinflate? The F700 has 30% less compressive strength, but looking at that pic, you would think the opposite.

So I don't understand that pic.

The builder does make the point that XPS has a much finer cell, so the laminate will be lighter. I will add, the excess epoxy to fill a more open cell foam is a very weak and heavy choice. If one wanted a lighter composite, one could skim coat voids with microballons and epoxy, I imagine. But I don't know how to make the skim coat infusion bond have strength!

While there is some concern that the lack of texture will make a weaker foam laminate bond, I do not think that has been shown a reasonable concern. The foam laminate bond is not high stress, and is quite weak, as a peel test shows.

|I will actually make another attempt at contacting him, since we are both in Sweden.

I look forward to hearing how it goes.