Guernsey Coating Laboratories, Inc., Ventura, CA Videos

Hydrophobic Coatings
Introducing Guernsey’s hydrophobic coating. Shown in this video is a 6” substrate coated with GCL’s (M14) silver. Half of the surface is coated with a secondary hydrophobic coating visibly beading up and repelling water droplets. Adding our hydrophobic coating to most of GCL’s thin-films, including metallics and AR coatings, will assist in protecting the coated surface from debris and repel water without compromising optical performance. Hydrophobic coatings can be applied to most coatings on glass, metals and plastic substrates.

Torture testing Guernsey Coatings silver coated mirrors
Shown in this video is a 3” silver coated substrate attached to an abrasion test apparatus. The demonstration was conducted over a three day period of time at Photonics West 2019 (Booth #3103). During the show, almost 4,000 rotations were made depicting the durability of Guernsey’s silver (M14) using MIL specifications for moderate abrasion (applying 1 to 1-1/2 pounds of pressure through cheesecloth pad 3/8” in diameter). The MIL test specifies 50 passes. During the course of three days, the silver coated optic was put through almost 80 tests. The surface of the optic was not cleaned allowing ambient dust to settle on the part and dragging added contaminants across the surface. The coating was torture tested and does not end up pristine at the end of three days, however, the damage is extremely minor.