A versatile retanning and filling agent for a wide range of leathers Suitable applications include shoe upper, bag leather and upholstery. Bags & leather goods Shoe Upper Upholstery Syntan LF 187 has strong filling properties and it levels out fullness differences in the various parts of a hide. Syntan LF 187 has a positive effect on grain tightness . An even and fine milling pattern can be obtained by using Syntan LF 187. TDS request Request a TDS of product TDS Sample request Request a sample of product Request