I found it on the Dow Chemical site someplace in the Styrofoam section. It took some time wading thru all the information. As I recall, the strength is given in kPa or KN/m^2 or kg/mms^2 (they are all the same). 1 Pa = 0.000145 psi so 1 kPa = 0.145 psi. It's been a long time but for some reason I recall I had trouble accepting that The Styrofoam FB in the Aircraft Spruce catalog is the same as Styrofoam FB on the web site. I did finally decide it is but I don't recall what made me question it in the first place.
Pete G. I looked into Aircraft spruce foam and could not find any that stated compressive strength, can you tell me where you found this info? Thanks -- Eric Pitts Terre Haute, Indiana KR2S

