The squeegee also uses blades made of very soft silicone rubber. ... Cheap squeegees have rubber that hardens after a few uses and can actually scratch the glass. A high quality squeegee has a blade that will practically last forever for a homeowners purposes and will not scratch glass if used properly.

Can you scratch glass while cleaning?

Avoid Cleaning Glass while Dry

Dust particles on the cloth can scratch the glass and make it more susceptible to damage in the future.

What causes scratches on window glass?

Scratches are the most common damage that your exterior window glass can incur. Scratches can be caused by several elements such as tree branches rubbing against the exterior glass. They could be caused by children, pets, or even be the aftermath of recreational activities.