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Cobalt Blue
Cobalt Blue (PB28)
- Product Code
- Masstone
- Tint (1:3)
- Color Index Name
- Pigment Chemical
- Mean Particle Size
- Oil Absorption(%)
- PH
- Heat Resistance
- Blue-2501K
- PB28 77346
- Co-Al
- ~1.1
- 25-40
- 7-10
- >500
- Blue-2502K
- PB28 77346
- Co-Al
- ~0.6
- 25-40
- 7-10
- >500
- Blue-2503K
- PB28 77346
- Co-Al
- ~0.6
- 25-40
- 6-9
- >500
- Blue-2511K
- PB36 77343
- Co-Al-Cr
- ~0.7
- 15-25
- 6-9
- >500
- Blue-2542K
- PB36 77343
- Co-Al-Cr
- ~0.7
- 15-25
- 7-10
- >500
Main Characteristics
1. Pigment Blue 28 (C.I. 77346) / Pigment Blue 36 (C.I. 77343)
2. Spinel structure
3. Reddish shade cobalt blue / Greenish shade cobalt blue
4. Ease of dispersion
5. Excellent dimensional stability
6. NIR reflectance (cool pigments)
7. Light fastness 8(1-8)
8. Weather fastness 5(1-5)
9. Acid fastness 5
10. Alkali fastness 5
11. Solvent fastness 5
12. Cement fastness 5
Cobalt Blue Applications
1. Suitable for all indoor and outdoor applications;
2. Recommended for combinations with high performance organic pigments in opaque formulations to achieve improved weather resistance;
3. Recommended for applications requiring excellent chemical and weathering resistance;
4. Suitable for Polymer PVC-P; PVC-U; PUR; LD-PE; HD-PE; PP; PS; SB; SAN; ABS/ASA; PMMA; PC; PA; PETP; CA/CAB; UP; Engineering plastics; Powder Coatings; Water Based Coatings; Solvent Based Coatings; Printing Inks; Construction Materials.
