Abstract: In a first aspect, the invention thus pertains to thermoplastic processable compositions (base compositions) comprising one or more flours, one or more polymers, optionally plasticizers, optionally fillers and optionally additives, characterized in that at least one of the polymers is present in the form of its water-redispersible polymer powder or as aqueous polymer dispersion, whereby the compositions contain less than 12% by weight of polyvinyl alcohol, based on the total amount of polymeric components of the composition.