Duasyn® Acid Brown RB by Heubach is an acid dye (salt of a sulfuric, carboxylic or phenolic organic acid). Typically soluble in water and possess affinity for amphoteric fibers. Duasyn® Acid Brown RB is recommended for... view more

Duasyn® Acid Dark Brown SBL by Heubach is a metal-monoazo complex. Duasyn® Acid Dark Brown SBL is a brown colored grade and is used for wood stains (paints)... view more