Synthetic Fatliquor for Pickle and Chrome Tanning Characteristics In pickle and chrome tanning SYNTHOL EM 336 is added in quantities of 0.5% to 3% depending on the type of leather. In rechroming 1 – 3% SYNTHOL EM 336 is advised. In main fatliquoring an application of 10% of the total fatliquors quantity is advised to improve the penetration, evenness, uptake and feeling of other fatliquors. TDS request Request a TDS of product TDS Sample request Request a sample of product Request