Why does MBA use glass window protectors instead of the plastic window protectors in their cabinets?
Plastic window protectors are not desirable because of the soft nature of the plastic and the high susceptibility of the abrasive dust electrostatically sticking to the window protector. Cleaning a window protector is typically accomplished by wiping it with the operator glove. Unlike glass, the plastic window protectors will easily scratch. The result is poor operator visibility. Some manufacturers use mesh screens as window protectors, but mesh screens greatly reduce light and operator visibility and really doesn’t completely protect the machine view window from damage. Using glass as a window protector insures maximum visibility with no light loss inside the cabinet and does an excellent job protecting the view window.