Ultramarine Pigments

ultramarine-pigments-ltd

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.