Traditional conservation on Chinese Metal Coins (Kepeng) from sangkulu-kulu underwater archaeological sites, Selayar Regency

Abstract

Abstract This study aims to carry out conservation using a traditional approach to the artifacts of Chinese metal coins (kepeng) that are raised from the Sangkulu-kulu Selayar underwater site. The natural ingredients used are a solution of wuluh starfruit (Averrhoa Bilimbi), maja fruit solution (Aegle Marmelos (L) Correa), lime juice (Citrus Aurantifolia), tamarind juice (Tamarindus Indica) and coconut water (Cocoa nutifera). The methods used include identification of weathering. The second stage is of XRF analysis. The third stage is immersion with a conservative ingredients solution. The results showed that of the five solutions used in the cleaning of 3 types of weathering in the coin sample, the lime solution was faster in removing three types of weathering (chemistry, physical and biotic), especially for the types of chemical and biotic weathering. Acidic solutions are used to remove active patina; a tamarind solution is the most effective solution in eliminating physical weathering by a process that lasts slowly or little by little.

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