Features of Cobalt Blue Pigment
Cobalt blue pigment, also called pigment blue 28, it mainly composited by Cobalt Aluminate(CoAl2O4). According to its chemical formula, the content of Alumina oxide should be 57.63%, cobalt oxide is 42.36%.But in Cobalt blue pigment, Alumina oxide is contained about 65% to 70%, Cobalt oxide is 30% to 35%.
(Cobalt blue pigment from Nolifrit:)
Cobalt blue has very bright color. it’s highly weather-proof, alkali resistant, which can bear varies of solvent and its heat resistance can be 1280℃. Cobalt blue is also a environmental friendly and nontoxic high temperature resistant inorganic pigment.
Cobalt blue pigment is mainly applied to heat resistant paint, ceramic, enamel and glass. Coloring for heat resistant industrial plastic. And it can be also the pigment for art, in this field, Cobalt blue pigment is much expensive than other inorganic pigment.
(Enamel cookware in Cobalt blue color:)
According to the above description, let us sum up main features of Cobalt blue pigment:
It can be widely applied in enamel coloring, and its heat-resistance can be more than 1280℃, which is approved and welcomed by most of our customers.