Skip to content
  
Blue 10K525
CI Pigment Blue 28
Cobalt Aluminate Blue Spinel

A dark blue powder produced by solid state reactions at a very high temperature. It is lightfast, alkali resistant, acid resistant, heat resistant and weather resistant. It was created to color ceramic bodies and glazes. It is compatible with all stains, glaze and body formulae we are aware. Complete dispersion is necessary to avoid blue specks.

Specifications:


Specific Gravity

4.2

Oil Absorption

34 kg/100 kg

Residue 325 mesh [44 µm]

0.01 wt%

pH

8.8

Heat Stability

800 °C

Surface Area BET

12.4 m²/g

Conductivity

504 µS/cm

Percent Moisture

0.6 wt%

Crystal Structure

spinel

Lightfastness

8 (1-8)

Weatherability

5 (1-5)

Acid Resistance

5 (1-5)

Alkali Resistance

5 (1-5)

Bulk Density

0.42 kg/L

Mean Particle Size

1.0 µm

HBU

NA °C

TSR

NA %

Reflectance (300-2500nm)

Reflectance (visible only)