Kajian Potensi Minyak Goreng Bekas Sebagai Material Pola Pada Investment Casting

ABSTRACT Used cooking oil is oil that has been used in the frying process. Consumption of used cooking oil has a negative impact on human health, in addition to improper disposal of used cooking oil resulting in environmental pollution. One way to overcome this waste is by processing it into wax material for investment casting patterns by adding chemicals in the form of stearin. This study aim…