Abstract: The present invention provides a mixing block for mixing fluid components of a multi-component system and which includes at least two component inlets, wherein each component inlet receives a respective component or components of the multi-component system; and a solvent inlet, wherein the solvent inlet receives solvent for use in cleaning the mixing block. The mixing block further includes at least two flow channels, which intersect, wherein an upstream end of each of the intersecting flow channels is connected to at least one of the component inlets and a downstream end of each of the intersecting flow channels is connect to a mixed material reservoir, wherein the mixed material reservoir is further connected to and supplies mixed material to an outlet.