We are offering here the Red 426 that is a dye sometimes acquired from the Dye Trader after completing a Strange Plant quest. When put in the dye slot, it provides the same effect that the other Acid Dye variants produce. It is an acid dye used to produce red woolen yarns. Acid dyes are anionic, soluble in water and are essentially applied from acidic bath. It is normal for some acid dye colors to fall out of solution when the water cools, or even to thicken and gel when very concentrated.