Pretanning agent for chrome free, low chrome, chrome & tara free and vegetable l Syntan VP 223 is a pretanning agent for chrome free, low chrome, chrome & Tara free and vegetable leathers. Suitable applications include: chrome free leathers, low chrome leathers, chrome free Tara free leathers and vegetable leathers Characteristics Syntan VP 223 reduces the time of penetration of vegetable and synthetic tanning agents. Syntan VP 223 has excellent dispersing properties for vegetable and synthetic tanning agents and thus protects the grain from being over tanned. Fine-grained and light-coloured leathers are obtained when pretanned with Syntan VP 223. TDS request Request a TDS of product TDS Sample request Request a sample of product Request