Sennelier Acrylic Binder Pure acrylic resin (acrylic polymer) of 46% dry extract. Identical application to the Caparol binder. Features: shiny and transparent product for inside and outside, better water fastness than Caparol-based preparation. The less methyl cellulose binder is used in amalgamation with the pigment, the better the water fastness of the acrylic paint once dry. It gives a film that goes from satin to glossy, depending on the percentage of acrylic resin used. 120 ml filling bottle