Rodys KP is a powder form of Rodys K, which is the sodium salt of naphthalene sulfonic acid formaldehyde polycondensates (NSF). It is a surfactant with dispersing properties used in the emulsion polymerization process of styrene-butadiene rubber (SBR). Rodys KP forms a stable dispersion of latex particles in water, preventing coagulation during polymerization and degasification. It does not affect the physicochemical or mechanical properties of the rubber and does not slow down the polymerization rate. Its low moisture content and bulk density