PROPORTIONS OF LOCAL MATERIALS SUITABLE FOR POTTERY MAKING

Abstract

This study aimed to investigate proportions of local materials suitable for pottery making. By conducting 11 sets of experiments with ratios of 0:100, 10:90, 20:80, 30:70, 40:60, 50:50, 60:40, 70:30, 80:20, 90:10, and 100:0. The materials were formed using two different mold sizes. Starch-based adhesive was used as the adhesive for all sets of experiments. The experiments included testing the shaping characteristics of the pots, water absorption rates, and the degradation of the pots. That found experiment set 11 had a smooth surface texture, slight twisting at the base and edges, and a faint green coloration. Upon considering the water absorption properties of the pots, most experiment set used pure coconut fiber and husk had water absorption rate better. Additionally, the analysis of pot degradation revealed that it was found that experiment set 11, with a ratio of 100:0 (pure coconut fiber and husk), exhibited the slowest degradation rate. Overall, the most suitable ratio of local materials for pot molding is found in experiment set 11 because it showed the slowest degradation of the pots.