an implant material on the basis of a polymer system has a first component and a second component that react with one another when mixed to form a polymer - based solid . the first component is a paste that contains at least one biocompatible polymer powder and a starter component for initiating a polymerization reaction upon mixing , wherein the paste has a carrier liquid , wherein under normal conditions in the carrier liquid the at least one biocompatible polymer powder does not dissolve or significantly swell and the starter component remains stable until mixing with the second component of the polymer system . the second component of the polymer system contains at least one reactive organic liquid or a solution or a suspension of a reactive organic liquid and of a polymer .