Floortex is a market leader in floor protection mats made of polycarbonate, which is anti-microbial and anti-static.
As far as I can see from the Internet, none of the Cleartex mats correspond to this article. see https://www.floortex.de/de-bodenschutzmatten
Sure, "just a little plastic" :)
If you look it up on google you will find this:
http://www.floortex.com/assets/downloads/NEWFLOORTEXMATTENAUSWAHLVERWENDUNGUNDPFLEDGE27.07.15.pdf
Also in the hardware store "some plastic" costs a lot in the size... Only this plastic protects the floor -> "floor protection mat".
It works for me with underfloor heating and laminate and has had no problems so far.
But I can't tell you if it is suitable, but normally there should be no problems.