Informative technical data
Min Max Test method
Fe2O3 [%] 94 DIN 55 913
SiO2 + Al2O3 [%] 0.6 DIN 55 913
Loss on heating at 1000°C, ½ h [%] 6.0 DIN 55 913
Water-soluble salts [%] 0.5 ISO 787 part 3
Water content (ex works) [%] 1.0 ISO 787 part 2
Oil absorption [g/100g] approx. 20 ISO 787 part 5
Particle shape irregular
Predominant particle size[µm] 0.1-0.8 Electron micrographs
Tamped apparent density [g/cm3] approx. 0.8 ISO 787 part 11
Density [g/cm3] approx. 4.0 ISO 787 part 10
Packing
Standard packing 20-kg bag
500-kg bulk bag
Colour values and tinting strength
Min Max Test Method
Binder Sacolyd® L 640
Full shade
ΔL* -0.5 0.5 Colour measurement
Δa* -0.8 0.8 to DIN 6174
Δb* -0.8 0.8
ΔE* 1.0
Reduced shade with Titanium dioxide / TRONOX® R-KB-2 (1 : 5) ( ΔL* = 0)
Min Max Test Method
Δa* -0.8 0.8 Colour measurement
Δb* -0.8 0.8 to DIN 6174 and
ΔE* 1.0
Binder Heavy spar
TSrel [%] 95 105 Test procedure