<![CDATA[The carving wax composes many natural or synthetic waxes and sometimes filler is added physical and mechanicalproperties. The aim of this study was to determine the correlation of concentration Ca-bentonite carving wax compositionand the hardness. The paraffin, carnauba wax, bees wax, Ca-bentonite, and inlay wax were used in this research. Thecarving wax compositions were made of paraffin, Ca-bentonite, carnauba wax, and bees wax ratio (% weight): 50:20:25:5(KI), 55:15:25:5 (KII), 60:10:25:5 (KIII), 65:5:25:5 (KIV), 70:0:25:5 (KV). All components were melted, then pouredinto hardness moulds (n=5). The carving wax properties were tested of their hardness by penetrometer (Setamatic, UK).Data were analyzed statistically by regression test and linearity by Anova. The results showed that regression linearsignificantly (p<0.05) and the regression of equation was Y = 18.365-50.940 X with coefficient regression of (R) = 0.922(p<0,05) and determinant factor 84.9 percent. The conclusion of this study was the adding of Ca-bentonite on thecomposition of carving wax improved its hardness with the significant linearity (p<0.05).]]>
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