AURUNA® 556 EF-24 Fine Gold Electrolyte for Electroforming
Electrolyte for fine gold hollow jewellery
AURUNA® 556 EF-24 is particularly suitable for electroforming. The electrolyte produces hard, semi-bright, thick gold layers. It is mainly used to produce high quality hollow jewellery with layers between 150 and 200 micrometer. Mandrels may be either made of wax or metal. The excellent hardness up to 200 HV and more than 99.9 percent fineness ensure customer satisfaction, because the hollow jewellery offers outstanding stability in use. It can be polished easily, has good surface quality and convinces with its solder properties.
AURUNA® 556 EF-24 is also ideal when thick fine gold layers are deposited on (non-) precious metals. Creative combinations allow completely new designs.
Electrolyte characteristics
Electrolyte type
Neutral
Metal content
12 (12 - 20) g/l Au
pH value
6 (5.8 - 6.2)
Operating temperature
45 °C
Current density range
0.5 A/dm²
Plating speed
0.23 μm/min
Deposition rate
85 - 90 mg/Amin
Anode material
Pt-Ti (type PLATINODE® Pt-Ti)
Coating characteristics
Coating
Fine gold
Purity
99.9 wt. % Au
Colour of deposit
Yellow
Brightness
Semi-bright
Hardness
200 HV
Max. coating thickness
Several 100 μm
Density of the coating
Approx. 19.0 g/cm³
Advantages
- 24 ct fine gold electrolyte for electroforming
- Suitable for wax and metal mandrels
- Layer thicknesses between 150 and 200 micrometer
- High hardness up to 200 HV at 99.9 percent fineness
Applications
- Electroforming
- Hollow jewellery
- Noble jewellery
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For inquiries and additional information
please contact
Umicore AG & Co. KG
Rodenbacher Chaussee 4
63457 Hanau-Wolfgang
Germany
Tel.: +49 (6181) 59 6005
Fax: +49 (6181) 59 2970
Email: chemistry@umicore.com
Website: www.chemistry.umicore.com
The information and statements contained herein are provided free of charge. They are believed to be accurate at the time of publication, but Umicore makes no warranty with respect thereto, including but not limited to any results to be obtained or the infringement of any proprietary rights. Use or application of such information or statements is at the user´s sole discretion, without any liability on the part of Umicore. Nothing herein shall be construed as a license or recommendation for use, which infringes upon any proprietary rights. All sales are subject to Umicore´s General Conditions of Sale and Delivery.
