Why does soil not stick to enamel coating

Abstract Recently, a number of investigations into the use of enamel coating for agricultural applications have been carried out. These investigations have revealed that an enamel coating reduces friction, adhesion and draft requirements of agricultural equipment in the soil. It is not known which characteristics of the enamel coating help in the improved performance. Therefore, this study was conducted to look into some physical, chemical and mechanical properties of enamel coating. The investigation included measurement of surface roughness, soil-metal adhesion and friction, hardness, and electrical conductivity, as well as electron scanning microscopy. The properties of the enamel coating studied were compared with the properties of a mild steel surface. These investigations revealed that an enamel coating does possess some special characteristics, different from the mild steel surface, which improve its performance in agricultural applications.