Umicore · Rhoduna 271
Umicore Rhoduna 271 Rhodium Electrolyte 2 g Rh/100 mL
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Cleaning & Surface Treatment
Electroplating Solutions & Consumables
KYG0496
Umicore Rhoduna 275 Black Rhodium Electrolyte for Pen Plating, 2 g Rh/100 mL
Umicore · RHODUNA 275
Umicore Rhoduna 275 Black Rhodium Electrolyte for Pen Plating, 2 g Rh/100 mL delivers uniform, durable dark rhodium coatings, ideal for precision pen plating on fine metalwork.
Cleaning & Surface Treatment
Specifications
| Electrolyte Type | Strongly acidic |
|---|---|
| Rhodium Content | 2 g Rh / 100 mL |
| Ph Value | < 1 |
| Operating Temperature | Room temperature (20–40 °C) |
| Voltage (Pen Plating) | 8–10 V (max. 12 V) |
| Current Density (Rack Plating) | 1.5 (0.5–3.0) A/dm² |
| Deposition Speed | Up to 0.1 um/min (Pen), approx. 0.05 um at 2.0 A/dm² (Rack) |
| Max. Coating Thickness | approx. 0.1 um |
| Coating Hardness | approx. 600 HV |
| Coating Density | approx. 12 g/cm³ |
| Colour of Deposit | Anthracite to black, L*a*b*: 61.0 / 1.1 / 4.0 (at 10 V) |
| Brightness | Bright, brilliant |
| Purity (Rhodium) | 99.9 wt.% Rh |
| Anode Material (Rack Plating) | Platinized titanium (e.g., PLATINODE® coated with 2.5 um Platinum) |
| Volume | 100ml |
Overview
Highlights
- Produces bright anthracite to deep black rhodium coatings
- Fast coverage speed and efficient high-purity deposition
- Uniform, crack-free coating up to 0.1 μm thickness
Applications
- Selective plating of jewelry patterns and details
- Restoration and enhancement of fine watches
- Customization of metal accessories and spectacle frames
Overview
Umicore Rhoduna 275 Black Rhodium Electrolyte for Pen Plating, 2 g Rh/100 mL is specially formulated for pen plating processes requiring deep black rhodium finishes. This strongly acidic electrolyte ensures precise, efficient application, achieving consistent, brilliant black layers with excellent wear resistance on intricate jewelry and metal components.
With 2 grams of rhodium per 100 mL, it enables high-purity, crack-free coatings up to 0. 1 μm in thickness. Operating at room temperature and supporting both pen and rack plating setups, it offers flexibility and reliability for professionals seeking superior detail and lasting esthetic results in custom metalwork.
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