White Bronze
€20.50
Available, delivery time: 1-2 days
Product information "White Bronze"
Our White Bronze Brush Plating Solution plates an anti microbial layer of white bronze onto a range of different metals.
It can be used instead of nickel because it
- has a similar hardness
- has a similar colour
- can be used to plate a barrier layer between gold on to copper and its alloys
We recommend you use our platinum range of electrodes with our white bronze plating solution.
Please note: This white bronze plating solution solution is air-sensitive so when you’re not using it, keep the lid tightly shut and try to reduce the air space remaining in the bottle. You can do this by adding marbles or glass beads to the bottle or squeezing out the excess air at the top of the bottle. You can also store the solution in a special syringe that’s available on the online shop.
We recommend this solution is stored long-term between 2 – 5 °C.
Please use this solution within 4 weeks of purchase.
If you don’t follow these precautions then the tin component in the white bronze plating solution will degenerate.
Our white bronze brush plating solution is a truly multi-functional product. Because of its anti microbial properties, one of its most important applications is to plate a protective, non-toxic nickel coloured layer onto stainless steel door handles and other touch points, reducing the incidence of microbial transmission. Click on the tab to the right of this to watch a video of a door handle being white bronze plated in-situ.
If you’re planning on creating gold plated copper jewellery or any other decorative or functional item made out of copper that will regularly be worn or handled, white bronze plating is an excellent choice for plating that essential barrier layer between the gold plating and the base layer copper. It is essential because without a barrier layer, the gold plate will eventually diffuse into the copper (including it alloys such as brass) which will result in a patchy, unattractive surface. In the past, nickel plating was used as a barrier layer, but nickel is now banned in the manufacture of jewellery in the EU and so white bronze is the effective, non-toxic and inexpensive alternative.
Please be aware that copper jewellery that will be in constant, close contact with the skin (such as earrings or rings) isn’t suitable for this process. Although white bronze plating is non-toxic, it won’t prevent the underlying copper eventually reacting with the skin, leaving greenish markings. For this reason we suggest that white bronze barrier layers are best on pendants that are designed to be worn over clothes, brooches or belt buckles etc.
| Voltage range | 4 – 4.5 volts |
| Electrode | Carbon |
| Alloy consistency | Typically 65% copper, 35% tin (see notes) |
| Whiteness L* at Cu:Sn 65:35 | 71 – 73 |
| Mixing ratio see notes below | 1 volume Copper Brush Plating Solution to 1 volume White Gold Mixer |
| Temperature | 15 – 25 °C |
| Plating Rate at (4 volts, carbon electrode) | Approx. 4 microns per minute (see notes) |
| Hardness | In excess of 400 Hv |
| Average density of deposit | 8.15 g/cm3 |
| Stress | Medium |
| Special storage requirements | None |
| Shelf life | 3 months |
| Health and Safety classification | Irritant |
| Special considerations | None |
| Transport (UN number) | None: Not classified as dangerous for transport |
- The percentage of copper in the deposit increases as the voltage is increased.
- The percentage of copper in the deposit increases rapidly once the solution is mixed
(10% per 30 minutes). We recommend that the solution is used within 10 minutes
after mixing). - The process has been calibrated using a Short Swab attached to a Carbon Electrode.
Plating rates can vary (even at a fixed voltage) depending on the type of swab used
and the type of electrode (platinum and carbon). - A mould may develop on storage but is not affect plating.
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Signal word: Warning
Hazard statement(s).
H316 Causes mild skin irritation.
H320 Causes eye irritation.
H335 May cause respiratory irritation.
Precautionary statement(s)
P261 Avoid breathing dust/ fume/ gas/ mist/ vapours/spray.
P305 + P351 + P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
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