We are pleased to offer a range of ultramarines produced by Ultramarine & Pigments in India.
Parameter | Grade | ||||
UPL 1690 mid-shade blue |
34595 green-shade blue |
UPL 2065 red-shade blue |
AR4 UP-V3 acid-resistant blue |
UP-V3 violet |
|
Tinting strength | ± 5% | ± 5% | ± 5% | ± 5% | ± 5% |
DE* (max) | 1 | 1 | 1 | 1.7 | 1 |
DL* | ± 0.5 | ± 0.5 | ± 0.5 | ± 0.5 | ± 0.5 |
DA* | ± 0.8 | ± 0.8 | ± 0.8 | ± 0.8 | |
DB* | ± 1.0 | ± 1.0 | ± 1.0 | ± 1.0 | |
DC* | ± 1.3 | ||||
DH* | ± 1.0 | ||||
Moisture (105°C) % max |
1.0 | 1.0 | 1.0 | 1.0 | |
Water soluble matter % max |
1.0 | 1.0 | 1.0 | 1.5 | |
Free sulphur (ppm) max |
500 | 200 | 500 | 0.5% | 500 |
Oil absorption % wt/wt |
32 - 34 | 37 - 38 | 31 - 33 | 32 - 35 | 33 - 35 |
Median particle diameter (µm) |
2.75 | 1.50 | 3.20 | 3.5 max | 1.7 - 2.0 |
45µm sieve residue % max |
NIL | 0.2 | 0.5 | 0.1 | 0.1 |
Heat stability (350°C in air) |
STABLE | STABLE | STABLE | STABLE | STABLE |
Light-fastness MASSTONE § |
7 / 8 | 7 / 8 | 7 / 8 | 7 / 8 | 7 / 8 |
Light-fastness TINT § |
7 / 8 | 7 / 8 | 7 / 8 | 7 / 8 | 7 / 8 |
Acid resistance | Poor | Poor | Poor | Good for pH 7 - 4 | Poor |
Alkali resistance | Good | Good | Good | Good | Good |
§ Wool scale
Ultramarine and Pigments Limited is registered to ISO 9001 (2000) for the manufacture of inorganic pigments
Learn more about typical levels of heavy metals in these pigments.