What can some rust removers do to glass and skin?

Rust removers often contain strong acids or other harsh chemicals designed to react with rust and remove it effectively. However, these same properties can also cause significant damage when they come into contact with other materials, including glass and skin.

When applied to glass, the etching process can occur, which means that the surface of the glass can become rough or dull instead of remaining smooth and shiny. This happens because these strong chemicals can break down the glass's surface at a microscopic level.

Similarly, when rust removers come into contact with skin, they can cause burns due to their corrosive nature. The acids can lead to chemical burns if not handled properly or if protective gear is not worn. Hence, it's critical to use rust removers with caution, ensuring that proper safety measures, including gloves and eye protection, are taken to avoid these harmful effects.