Retanning agent for exceptional softness and fullness The leather chemical Syntan S is a retanning agent for exceptional softness and fullness. Suitable applications include: shoe upper, bag leather, garment, upholstery, automotive, double face. Automotive Bags & leather goods Garment Shoe Upper Upholstery Softness and fullness obtained with Syntan S are of exceptional quality. Syntan S gives a very even milling pattern with a well-filled and pronounced pebble. Crust retanned with Syntan S is easily buffed with a short nap. TDS request Request a TDS of product TDS Sample request Request a sample of product Request