New clear, scratch-resistant coatings for polycarbonate and acrylic windows on electronic and medical devices are based on silica nano-particles in a coating 4 to 10 microns thick.
New clear, scratch-resistant coatings for polycarbonate and acrylic windows on electronic and medical devices are based on silica nano-particles in a coating 4 to 10 microns thick. These coatings were developed by California Hardcoating Co., San Diego, which offers them on their own or applies them as a service with its new spin-coating process. The new coatings and process are said to achieve an exceptionally clean and smooth result without the thickness gradients, drip-off marks, and “orange peel” caused by dip- or flow-coating methods. The coatings are based on siloxanes, acrylates, urethanes, and epoxies.