Sico Fast Red L3855 (Irgalite Red L3855)
Pure Shade 1: 5.9 TiO2
Colour Index ：Pigment Red 112 / 12370
chemical nature： Naphthol AS red
physical form：powder
physical data
pH value：5–8
conductivity： < 300 μS/cm
specific surface：37 m²/g
density (20 °C [68 °F])：1.50 g/cm³
bulk volume：10.7 l/kg
dry content：> 98 %
resistance to chemicals (powder)
acids (HCl, 2 %)：5
alkalis (NaOH, 2 %)：5
heat resistance： 180 °C (356 °F)
fastness to overcoating：2–3
fastness to weathering： Pure Shade 1:5.9 TiO2
alkyd/melamine 4-5 2-3