A very full acrilic syntan The leather chemical Syntan RS 540 is a very full acrylic Syntan. Syntan RS 540 gives a full and round handle. Syntan RS 540 does not give the leather the dry handle obtained from conventional acrylics. Syntan RS 540 is used as part of the retanning process for shoe boots or looseness skins in combination with Syntan RF 181 or other Syntans. Sheepskins with a very soft handle maintain very good grain tightness and fullness. Characteristics Syntan RS 540 gives a full and round handle. Syntan RS 540 does not give the leather the dry handle obtained from conventional acrylics. Syntan RS 540 is used as part of the retanning process for shoe boots or looseness skins in combination with Syntan RF 181 or other Syntans. Sheepskins with a very soft handle maintain very good grain tightness and fullness. TDS request Request a TDS of product TDS Sample request Request a sample of product Request