1 Answer:
  • Akash Ahmed
    "1. Because Frit is black, it heats up faster than the rest of the glass during manufacturing. ... The frit inside the window ensures the glass stays bonded to the vehicle, while the outside acts as protection against continual direct sunlight.13 nov 2017
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  • Can you fix black spots on a mirror?

    If the black spots are in the middle of the mirror, it is typically caused by moisture or cleaner reaching the back of the mirror and causing damage. Unfortunately in either case, there is no way to remove the black spots. The only solution is to repair the mirror by painting a new finish or disguising the spots.