An acrylic syntan Characteristics Syntan RS 3 gives a full handle without altering the chrome character of the skins. Even small amounts of Syntan RS 3 give an improvement of grain tightness. Syntan RS 3 is used as part of the retanning process for shoe boots in combination with Syntan RF 181. Sheepskins which are tanned with Syntan RS 3 obtain tightness and flatness of the grain. TDS request Request a TDS of product TDS Sample request Request a sample of product Request