Optical Comparator Overlay Charts are on sale at Gaging.com!  We will need your make, model and serial number of the optical comparator to provide you with a quote.

Plastic Overlay Charts – Clear or Frosted,

The plastic overlay chart (.050” thick) is recommended when charts are being changed frequently. The plastic selected for use in producing charts and scales was made for its optical qualities and dimensional stability. All plastic charts and scales are image etched into the surface for permanence; the image is etched to a depth of approximately .002 without affecting the accuracy or quality. Plastic charts are available with either a clear or frosted finish.

Mylar Overlay Charts – Clear or Frosted

The mylar overlay charts are .007" thick and can be rolled for storage. They are not as durable as either glass or plastic charts. Mylar charts are available with either a clear or frosted finish.