When I was at MMC last week I have seen the material used for the side screens is not Perspex (which is a trade name for PMMA = polymethylmethacrylate) but Lexan (trade name for PC = polycarbonate).
There is a special type of Lexan used:
Lexan Margard sheet
Abrasion resistant sheet
MR5, MR10, MRT, MRA, HLG series
It looks like a very high class material.
There you can find the
specification and
cleaning instructions as well:
https://www.theplasticshop.co.uk/lexan-m...12mm-thick.html
