I emailed pinball life about a month ago because my Deadpool pro is tight. I asked for the thickness of the mirror blade including the double sided 3M tape Vs art blades.
This was their response:
The mirror blades thickness is .0275
The blades art blades thickness are .02.

Disclaimer!
I have not ordered yet to confirm.

I thought the same thing. If they are that thin I don’t believe they could take an errant air ball. Then again, if you get a ball to hit them I bet most mirror blades will probably dent. Hopefully someone that has a set lying around can chime in on the thickness of mirror blades and their ability to withstand a direct hit. Here are some pics of foil for your enjoyment.

I suspect Pinball life didn’t measure them with the 3M tape, but I can’t be sure without pics. Westsiderkg yes, about .7mm. Shoot Pinball life an email and see what they say. I might pull the trigger on a set of mirror blades and art blades from Pinball life this week. Art blades for my GZ, mirror blades for my Deadpool. I will load up a cart and see if I am willing to pull the trigger.
I just messaged Tilt Graphics, maybe they will get back to me. If not I will email them as well.

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