Slurry (water and solid particle mixture) were mixed with compress air in the nozzle and eventually injected on material surface at high velocity. Injected slurry on material surface resulted, a wear progression (wear rate) proportionately to the erosion (a strain/ scar occurred at the surface by particle collusion) strength of the material. It is a new type of solid particle impact test (slurry jet) to swiftly evaluate wear properties of various material especially hard coated thin films.