A low fogging fatliquoring agent for automotive leathers and nappas The leather chemical SULPHIROL AF 300 is a low fogging fatliquoring agent for automotive leathers and nappas. This Smit & zoon product can be used as a single fatliquor or can be combined with other suitable oils, depending on the articles made. Advised applications include: rechroming, neutralization, retanning (as a pre-fatliquor) or as a a single fatliquor. Bio-based Automotive Bags & leather goods Sulphirol AF 300 is a sulphited blend of natural and synthetic oils with softness properties comparable to those of fatliquors based on marine oils. Leathers have a full and round handle. Even after prolonged milling the leathers have a fine and uniform milling grain. Sulphirol AF 300 renders leathers with – very low fogging and emission values – neutral odour – very good heat yellowing properties 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