Transparent aluminum oxide (TAlOx), a real material despite its sci-fi name, is incredibly hard and resistant to scratches, making it perfect for protective coatings on electronics, optical sensors, and solar panels. On the sci-fi show Star Trek, it is even used for starship windows and spacefaring aquariums.
If you can, root and an app called AdAway (on f-droid)
I’m fairly certain AdAway can do the job without root, it’s just not as efficient because it has to do some trickery with VPNs and stuff where as with root it can apply it’s blocks directly to the system hosts file