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Pigment Blue 36

Pigment Blue 36(Cobalt Chromite blue) is A green color of the blue pigment, with excellent hiding power, color transparency and high tinting strength; has excellent resistance to chemical corrosion, outdoor weather resistance, thermal stability, light resistance, and has no permeability, No migration.

Main Characteristics

  • Spinel structure cobalt chromite pigment with a greenish-blue hue
  • Outstanding heat stability up to high firing temperatures
  • Excellent weather and UV resistance for outdoor use
  • High chemical resistance against acids and alkalis
  • Stable performance in plastics, coatings, ceramics, and glass
  • Non-bleeding and non-migrating properties

Application

It can be use for high temperature coatings, ceramics, enamel, coil coating, long-term paint, glass coloring, high temperature engineering plastics and food contact with plastic coloring products, as well as art paint.


Technical Specifications

  • ‍Product Name: Cobalt Chromite blue
  • Color Index: Pigment Blue 36
  • C.I. No.: 77343
  • CAS No.:68187-11-1
  • EINECS NO.:269-072-0 
  • Molecular Formula: Al2O3·Cr2O3·CoO‍

Density (g/cm3)

4.5

PH value

8.1

Oil Absorption(g/100g)

20.1

105℃Volatile Matter%

≤0.5

Water soluble Matter%

≤0.5

Residue on 45um Mesh%

≤0.1

Heat resistant

1000℃

Light Resistant

8

Acid resistant

5

Alkali Resistant

5

How does Pigment Blue 36 differ from Pigment Blue 28?

While both are cobalt-based pigments, Pigment Blue 28 offers a purer blue shade, whereas Pigment Blue 36 shifts toward a greenish-blue tone. PB36 also demonstrates higher chemical resistance and broader usability in ceramics and high-temperature applications.

Is Pigment Blue 36 safe for use in plastics and coatings?

Yes, Pigment Blue 36 is considered non-toxic and is commonly used in plastics, paints, and architectural coatings. Its non-migrating properties ensure color stability and safety in long-term applications.

What are the processing benefits of Pigment Blue 36 in ceramics and glass?

Due to its spinel structure, Pigment Blue 36 can withstand high kiln firing temperatures without color degradation. In glass, it provides a strong and durable blue-green coloration that remains stable even under prolonged heat exposure.

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