If this is the same white TRON replacement pad from the german site (that I assume Marco is reselling), my friend is using it for over a year and its been holding up fine. You MUST use spray adhesive to install it or it comes off (the sticky backing on the pad is not enough to hold it). He used 3M spray and stuck on there for good. It was crazy wild when he first installed it and calmed down after 100 games. I wish it would retain the crazy wild spins but I guess it loses its grip after a while. It definately stopped the black crud everywhere. I have a set but I didn't install it yet.

I checked the one on Marcos site and its just the center disc. The pad from Germany had the center disc (white) and a larger white circle about 1/2 inch wide, so it was 2 pads, not one. They are a direct replacement for the black ring/center hub. Surprised Marco doesn't have the outer ring in WHITE.
Here is the original thread
https://pinside.com/pinball/forum/topic/tron-clear-disc-installed