Ruthenium - Elektrolyte
Ruthenium is characterised by having a good abrasion resistance and hardness. Ruthenium electrolytes from METAKEM are used for technical and decorative applications. Dark, anthracite-black coatings are deposited. The coating colours can be influenced by addition of blackening additives. Ruthenium electroplating baths are used in particular for the selective deposition on for example gold - to achieve high-contrast surfaces in terms of colour.
Ruthenium-BLACK-500
Strong acidic ruthenium bath / electrolyte for the galvanic deposition of grey ruthenium layers. The addition of blackening additive Ruthenium BLACK 500 B results in dark anthracite coatings - depending on the added amount of blackening additive the dark colour can be individually adjusted.
| Bath type: | Strong sulphuric |  |
| Ruthenium content: | 5 g per litre | |
| Layer: | Ruthenium | |
| Max. layer thickness: | 1 µm | |
| pH-value: | < 1 | |
| Bath temperature: | 60 °C (55-70 °C) | |
| Current density: | 50 A/dm2 | |
| Deposition rate: | 1 µm / 2 min at 9 V | |
| Type of application: | (Black-) Ruthenium plating | |
| Delivery form: | Make-up: Ruthenium BLACK 500 (25 g Ru/l) Replenishment: Ruthenium BLACK 500-R (salt) |
Ruthenium-BLACK-500-B
The blackening additive Ruthenium BLACK 500-B is specially designed Ruthenium BLACK 500. The addition of this blackening additive results in L-values of < 60 at the colour level.
| Type of Additive: | Blackening additive for Ruthenium BLACK 500 |
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| Dosage: | 2-6 ml per g Ru (depending on desired blackening level) | |
| Replenishment: | 4 ml per g precipitated Ru, and after working intermissions |
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| Delivery form: | 100 ml bottles | |
Ruthenium-R-5
Ruthenium R 5 is strong acidic ruthenium bath / electrolyte used for the deposition of grey and - by addition of its blackening additive Ruthenium R 5 B - black anthracite coatings.
| Bath type: | Strong sulphuric |  |
| Ruthenium content: | 5 g per litre | |
| Layer: | Ruthenium 99,9% | |
| Max. layer thickness: | 1.5 µm | |
| pH-value: | 1.5 | |
| Bath temperature: | 70 °C (60-75 °C) | |
| Current density: | 1 A/dm2 | |
| Deposition rate: | 1 µm / 12 min at 1 A/dm2 | |
| Type of application: | Jewellery, faucets, clothes utensils | |
| Delivery form: | Make-up and replenishment: Ruthenium R 5 (50 g Ru/l) |
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| Blackening Additive: | Ruthenium R 5 B (100 ml) |
Ruthenium-SP
High-quality black ruthenium pen / brush plating solution for decorative applications. Ruthenium SP is ideal for the selective, manual ruthenium plating of small surfaces - resulting in abrasion-proof, black anthracite, bright coatings.
| Bath type: | Weak sulphuric |  |
| Ruthenium content: | 20 g per litre | |
| Layer: | Ruthenium 99.9% | |
| Max. layer thickness: | 0.3 µm | |
| pH-value: | < 1 | |
| Bath temperature: | Room temperature | |
| Voltage: | 10 V | |
| Type of application: | Decoration | |
| Delivery form: | Ready-to-use solution (2 g / 100ml) |
Product information on request.