Cobalt Blue also named pigment blue 28, king blue, thenard blue or cobalt ultramarine, is a very bright blue. Cobalt blue is a mixed metal oxide pigment of spinel pattern. It has excellent heat resistance, light-fastness, acid resistance, alkali resistance and non-toxic, so it can be used in the area which required high heat resistance, excellent color stability and ageing resistance. Our cobalt blue is produced by our own advanced technique, possesses the properties of good dispersibility and bright colours.
Main Technical Properties
| Apperance |
Blue powder |
| Density g/cm3 |
4.3 |
| PH Value |
7.5 |
| Oil Absorption g/100g |
25 |
| 105ºCVolatile Matter % |
≤0.5 |
| Water Soluble Matter % |
≤0.5 |
| Residue on 45um Mesh% |
≤0.1 |
| Heat ResistanceºC |
1000 |
| Light Resistance |
8 |
| Acid Resistance |
5 |
| Alkali Resistance |
5 |
| Color Index |
Blue28 77346 |
Remark: The above statistics is only for reference, can not be taken as the product technical specifications.
Application area:
fluorocarbon coatings, heat resistant coatings, plastics, ceramics, grass and artists' colors
| Package |
bag |
| Port |
Shanghai |
| Payment |
T/T |
Audited Supplier 
){kind=link}