Guernsey Coating Laboratories, Inc.

Since 1982, Guernsey Coating Laboratories, Inc. has provided superior quality optical thin-film coatings and unsurpassed customer service. GCL, Inc.

With both a complete line of standard coatings, as well as custom designs, GCL, Inc. is able to meet the specific needs of our client’s requirements with coatings covering the wavelength range from ultraviolet to the near infrared. also offers Research and Development, customized tooling, and a team of engineers working with you in order to meet, and many times exceed, your optical coating specifi  ...