Global Specialised Services
Fine Art & Exhibition Shippers
25 Tagore Lane #02-01A, Singapore Godown, Singapore 787602
Tel. +65 64526123 Fax: +65 64522311
Company Registration No: 200502624E
Treatment Start Date: 4 August 2017
Treatment End Date: 24 January 2018
Venue of treatment: Global Specialised Services Conservation Studio
Client: National University of Singapore, Department of Southeast Asian Studies
For: Professor John Miksic
A. About the Artefact
Name: Archaeological artefacts
Number of parts: various
Description: Iron slags, coins, copper wires etc
Material: Copper alloy, nickel, tin, lead, iron
B. Condition before treatment: Overall rating: Good to fair
- Surface dust/dirt and soil accretions
- Fragmented coins and other pieces
- Corrosions
C. Treatment Images:
C1. Iron Slags:
- Brush to remove sand and corrosion residues on surface
- Coated with 20% B72 in acetone
C2. Copper alloys coins:
- Brush to remove residues on surface
- Cleaned with 50% ethanol / 50% distilled water solution
- Degreased with ethanol
- Coated with microcrystalline wax
- Fragmented copper coins were coated with 20% B72 in acetone and microcrystalline wax
- Broken pieces were adhered with 70% B72 in acetone and coated in microcrystalline wax
The fragmented coin indicated in red box in the image was adhered with 70% B72 and coated microcrystalline wax.
C3. Nickel coins:
- Cleaned with 50% ethanol / 50% distill water solution
- Degreased with ethanol
C4. Loose copper/metal items:
- Brush to remove residues on surface
- Cleaned with 50% ethanol / 50% distilled water solution. Follow by degreased with ethanol
- Coated in microcrystalline wax
C5. Stones:
- Cleaned with distilled water
C6. Tin:
- Surface cleaned with soft brush
