The product is suitable for the industries of coatings, inks, plastic products, and printing paste. Physical data of Fast Yellow GW3106 (P.Y.1): pH Value PH 6-7; Oil Absorption (mI/100mg) ≤45; Heat Resistance 160; Fastness Light (Lightfastness) 6-7; Water (Waterfastness) 4-5; Linseed Oil (Oilfastness) 4; Acid (Acidfastness) 5; Alkali (Alkalifastness) 4-5