UMITAN RS / D POLV. is a tanning agent based on dicyandiamide resin anion. UMITAN RS / D is particularly suitable for the retanning of chrome leather which gives excellent filling in parts of the skin notoriously more empty. UMITAN RS / D allows you to get a good firm grain and fullness of the skin. It is indicated in the retanning of linings, cowhide, chrome bullocks and hips.