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There are many systems in a reactor shutdown function in MSR in addition to inherent self-stabilization. One of those systems is the fuel-salt drain system. The present study focused on the melting and solidification phenomenon that occurs in the freeze valve. An experiment was performed to investigate the erosion behavior of a solid plate by an impinging liquid with respect to time. In addition, a numerical modelling based on MPS method to visualize the heat distribution in the plate will also be carried out. The experiment will be conducted by varying the parameters such as the liquids, temperature, and diameter. Hot water (70 and 90oC), molten paraffin, and cooking oil, will be used while both molded candle and paraffin wax will serve as the target plates. The dimension of the target plate is a cylindrical with 44 mm in thickness and 140 mm in length for both paraffin and candle wax. Heat distribution images will be acquired using FLIR thermal video camera. The data then will be compared to the MPS simulation. Recent results showed that cooking oil outperformed hot water and liquid paraffin by having the shortest penetration time but not necesarrily the fastest erotion rate.