Fatliquor for very full and tight-grained upper leather Fatliquor for very full and tight-grained upper leather. Suitable applications include: bag leather and shoe upper. Bags & leather goods Shoe Upper Even when high quantities of Polyol AK are applied the grain remains tight. Polyol AK gives exceptional fullness and handle to leather. When Polyol AK is used as the main fatliquor, the leather has medium softness. However, very soft leather can be made by including POLYOL AK into any fatliquor combination. The product then retains its specific properties. Polyol AK gives the leather a pleasant waxy touch. Polyol AK is suitable for fatliquoring all types of upper and bag leathers made from hides of very diverse origin. TDS request Request a TDS of product TDS Sample request Request a sample of product Request