Waterproofing fatliquor for the highest requirements The leather chemical Synthol DS 600 is a waterproofing fatliquor for the highest requirements. Suitable applications include shoe upper. Synthol DS 600 is used when the highest standards in waterproofing have to be met. Bio-based Water resistant Bags & leather goods Garment Shoe Upper Synthol DS 600 is used when the highest standards in waterproofing have to be met. Leathers have medium softness with a full and rubbery handle. The grain remains very tight, even when higher amounts of the product are applied. The grain has a pleasant and smooth handle. TDS request Request a TDS of product TDS Sample request Request a sample of product Request Part of Smit’s Renewability range Discover our bio-based wet end solutions for excellent leather performance. Download brochure