Abstract: Pourable elastomer-filler mixtures, optionally containing plasticizer oil, are prepared by an improved process, the process comprising mixing an aqueous emulsion of an elastomer solution with an aqueous dispersion of a filler(s); introducing this mixture into water containing a precipitant(s); precipitating the elastomer-filler mixture while simultaneously removing the elastomer solvent by distillation; separating the thus-precipitated elastomer-filler mixture from the water; and drying the elastomer mixture under constant agitation; and the improvement comprising:Initially emulsifying the elastomer solution in water in the presence of a combination of:(a) 0.01 - 1.0% by weight of an anionic emulsifier, based on the weight of the elastomer solution;(b) 0.001 - 0.1% by weight of a nonionic protective colloid, based on the weight of the elastomer solution; and(c) 0.001 - 0.