Author(s): Surapongse Sotanasathien*, Sahassapas Sotanasathien
The research studied the compositions of different types of Thai goldware between the early Ayutthaya art period and the current market era by analyzing what gold alloy mixed up. The research method was an expose de facto design. The total samples obtained were 116, consisting of 73 samples from ancient Ayutthaya art and 43 samples from the current marketing era. An accidental sampling was conducted. Thai gold alloy formulas were analyzed by using multiple regression analysis via a stepwise method. The findings are: It can be said that traditional gold alloys are better a little bit quality than gold alloys in the marketing world. We also found that there have never been disclosed two secret formulas for making gold alloys in those days, meanwhile making gold alloys is 11 formulas in these days. In the early Ayutthaya periods, one is a simple formula but the other formula is very sophisticated due to plenty of metals correlating by corresponding or converting each other with gold. However, there are eleven formulas in the present market era. Likewise, they are three simple formulas comprising a few metals. The other formulas are more complicated since a large number of metals correspondingly and inversely with gold. Fortunately, we find out all the formulas from the research. Nevertheless, at least 5 metals always make gold alloys different during the eras and all five metals usually correlate with gold. The rest metals may also blend in gold alloys to garnish a special Thai goldware.