Epoxy resin system which was specially developed for the shimming and back filling of difficult to be aligned systems. It serves as a replacement for fittings and worn metal sheets and ensures the direct contact to foundation plates. Due to the very low shrinkage, machinery and equipment remain constant in their orientation, after the casting of WEICON CBC. The epoxy resin system has a good compressive strength and is resistant against oil, fuels, many chemicals and temperatures.