What are the heat stability properties of Hoover Color’s Pigments?
Most of the pigments that Hoover Color markets are heat stable in most applications, with the exception of two important types of material. These include any pigments based on Yellow or Black Iron Oxides. Yellow Iron Oxides, FeO-OH, will begin to change into Red Iron Oxides at temperatures above 350 degrees Fahrenheit. Black Iron Oxides, Fe304, will begin to change into Red Iron Oxides at temperatures above 300 degrees Fahrenheit.