The Material Scaling (MASCA) Project investigated in-vessel phenomena during a severe accident. In particular, it addressed the influence of the chemical composition of the molten corium on the heat transfer to the pressure vessel environment. The project addressed this by investigating stratification phenomena of the molten pool and the partitioning of fission products (FP) within the different layers of the melt. The project was scheduled to be completed in July 2003, but it was continued until 2006 under the MASCA-2 Project, given the experimental needs that still exist and the quality of the experimental work produced. This report repreesnts and integrated project report on MASCA-1 and MASCA-2, covering the period 2000-2007.