The present invention relates to a dispersion for an aqueous spray formulation with controlled mechanical degradation, said dispersion comprising a polymer composition and at least one liquid phase, wherein said polymer composition is dispersed in said at least one liquid phase, wherein said polymer composition comprises one or more water-soluble polymers, wherein said at least one liquid phase is an oil phase and/or an aqueous phase, and wherein said at least one liquid phase comprises at least one non-ionic surfactant with a HLB of more than 0, preferably of more than 12. The invention moreover relates to a method for controlling the mechanical degradation of such a dispersion, wherein said method comprises the steps of: providing the polymer composition, preparing the at least one liquid phase by mixing the at least one non-ionic surfactant with said at least one liquid phase, and preparing the suspension by dispersing the polymer composition of step i) in the at least one liquid phase of step ii). The invention also relates to the use of the dispersion for controlling mechanical degradation of an aqueous spray formulation and to a method for preparing an aqueous spray formulation by mixing the dispersion and water in a weight ratio of between 1:50 to 1:1000.La présente invention concerne une dispersion pour une formulation de pulvérisation aqueuse à dégradation mécanique contrôlée, ladite dispersion comprenant une composition polymère et au moins une phase liquide, ladite composition polymère étant dispersée dans ladite au moins une phase liquide, ladite composition polymère comprenant un ou plusieurs polymères solubles dans l'eau, ladite au moins une phase liquide étant une phase huileuse et/ou une phase aqueuse, et ladite au moins une phase liquide comprenant au moins un tensioactif non ionique ayant un HLB supérieur à 0, de préférence de plus de 12. L'invention concerne en outre un procédé de contrôle de la dégradation mécanique d'une telle dispersion, ledit
