Patinal® Black A

Patinal® Black A by Merck KGaA, Darmstadt Germany is an evaporation material. It is a light gray powder mixture that can be used to produce dark-brown to black low reflectance layers on glass and plastics. These appears brownish in non-black transmission and are hard, adhesive and resistant against humid air & salt solutions. These are not affected by temperature. Patinal® Black A is used in light absorbing filters, sunglasses, scales, decorative-, functional- and black coatings for optical applications.