K-Gold Brush Plating Solution

£41.00£846.23 + VAT

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Our K-Gold contains 12 grams of gold per litre. It should mainly be used as a base solution for mixing with our full range of coloured gold mixers. Completely cyanide free. Recommended electrode – Carbon

Please note: This is an air-sensitive solution. When not in use, keep the lid tightly shut and take measures to minimise the air space remaining in the bottle. These can include 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.
Failure to observe the above precautions will result in the degeneration of the gold in the solution.
Please click on the next tab along under ‘Examples’ for suggestions on how to minimise air contamination.


HS Code: 3824 99 70

Earrings plated with rose and 24 karat gold. The rose gold plating solution was prepared by mixing our K-Gold with our Rose Gold Mixer. Full instructions for the use of K-Gold to create a variety of different coloured golds can be found in our Electroplating Manual by clicking HERE. To work out how much plating solution you will need to plate your item and for how long, please click the ‘Calculator’ tab above.

Our Rose Gold Mixer is being added to our K-Gold in the beaker to make rose gold plating solution using our Mixing Kit.

Features Used for
Designed mainly as a base solution for mixing with our Coloured Gold Mixers Mixing with Yellow, White, Rose, and Green Gold Mixers and Brass Effect Gold Mixer.
Can be mixed with 2 or more Gold Mixers Creating a huge spectrum of different shades and tints of gold – good for exactly matching colour of original gold plated layer.
Can be plated on its own, forming a soft, 24 carat gold layer, completely cyanide free Mainly functional purposes only. Plate dulls over 0.2 microns but can be burnished to reveal a mirror finish.


A guide to our Coloured Metal Mixers

The table below provides a quick reference to help you decide which mixer you should combine with which base and the correct voltage and electrode you should use.
Please refer also to the 'Tech Specs' tab of the tabbed panel on each product's product page.
NB; When plating your prepared rose gold and green gold plating solution on to stainless steel, nickel and its alloys, first plate a layer of 24 carat gold using our Gold Flash.

A quick reference guide to our Coloured Metal Mixers

Plating Solution Type of mixer and base solution Ration of mixer To base solution Volts How it’s used and tips on application Electrode
White bronze White Bronze Mixer/Copper Brush Plating Solution. Leave to stand for 15 minutes before using. Use within 24 hours. 2 1 3 – 3.5 Can be used as a low-cost, tarnish resistant alternative to silver plate. As an undercoat when plating on to copper and its alloys, tin and its alloys, including solder. As an undercoat when black chrome plating on to copper. Suitable power source: MF Rectifier Mk II Stainless Steel
Rose gold Rose Gold Mixer/K-Gold 1 for an 18ct rose gold alloy and 2 for a 12ct rose gold alloy 10 2 Pre-plate a layer of gold using Gold Flash when plating on to stainless steel, nickel and nickel containing alloys. Suitable power source: MF Rectifier Mk II Carbon – 2 volts

Platinum – 3 volts

Green gold Green Gold Mixer/K-Gold 1 to 3 depending on shade 10 2                                        “ Carbon
A shade of gold that resembles freshly polished brass Brass Effect Gold Mixer/K-Gold 1 10 2 Used to recreate the shade of freshly polished brass. Can be used to recreate some shades of Ormolu. Carbon

Brush Calculator

Operating Conditions and Deposit Data

Voltage Range Refer to data on label of Coloured Metal Mixer bottle in question. If being used as a stand alone solution – 2 volts
Temperature 20 – 25 °C
Gold Concentration 12 g/l
Electrode Carbon
Gold content in plate 99.9 – 100%
Plating Rate at (3.5 volts, Platinum electrode) Approx. 0.3 micron per minute (spot)
Hardness 170 – 180 Hv
Density of deposit 19.0 g/cm3
Stress Low stress
Special storage requirements Away from sunlight
Shelf life Over 2 years
Health and Safety classification Irritant
Special considerations None
Transport (UN number) None: Not classified as dangerous for transport



  • Plate dulls after 0.2 microns.
  • Coating can be burnished to mirror finish.
  • We strongly advise against the use of stainless steel anodes for most of our plating processes.
  • Plating rates are calculated over a sample area whilst in contact with the swab.

General guide;

Certain small items, for example Swabs, Nibs and Plating Pens can be sent by normal post within the UK

  • The courier option for UK deliveries is FedEx
  • Free UK mainland delivery available on orders over £200
  • International orders usually 3-5 working days.

For all price quotations for deliveries, please add your items to our shopping cart. You will be able to see the shipping costs by clicking on the ‘Calculate shipping’ button in the cart and before checking out.

You can access our MSDS by scanning the QR code which is on our product bottles.
Here is a video to show you how;

Shades of commonly used karats of gold created with our Coloured Metal Mixers

and K-Gold system.

Here’s a photo showing the shades of gold achievable using our coloured metal mixer system. Each swatch is numbered and corresponds to the swatch listed in the table following, which details the various quantities of mixer you need to create your desired shade and karatage of gold.

You can use these mixtures as guides or you can create your own unique shades.

To achieve these shades you will need to use one of our Carbon Electrodes, a Short Swab (in new condition) and set your MF Rectifier MrII to 2 volts.

Shade/Colour Karatage Volume of K-Gold (ml) Volume of Rose Gold Mixer (ml) Volume of Green Gold Mixer (ml) Plating Rate – Spot (micron/min) Comments

1. 9kt Whitish gold
9 5 0 3.1 2.8 Plates bright up to 0.2 micron.
See note 3.

2. 9k Yellow Gold
9 5 0.8 1.0 1.5 Plates bright up to 1 micron.

3. 9kt Rose Gold
9 5 1 0.3 1.3 Fully bright coating. Tarnishes quickly.

4. 9kt Red Gold
9 5 1.1 0 1.2 Fully bright. Tarnishes quickly.

5. 14kt Pale Green Gold
9 5 0 1.7 2.2 Plates bright up to 0.2 microns. See note 3.

6. 14kt Yellow Gold
14 5 0.5 0.5 1.2 Plates bright up to 1 micron. See note 3.

7. 14kt Rose Gold
14 5 0.55 0.15 1.4 Plates bright up to 1 micron.

8. 14kt Red Gold
14 5 0.8 0 1.9 Fully bright coating.

9. 18kt Green Gold
18 5 0 0.8 1.6 Plates bright up to 0.2 micron. See note 3.

10. 18kt Yellow Gold
18 5 0.25 0.4 1.7 Plates bright up to 0.5 micron. See note 3

11. 18kt Rose Gold
18 5 0.35 0.15 1.6 Fully bright coating.

12. 18kt Red Gold
18 5 0.45 0 1.4 Fully bright coating.

13. 22kt Rose Gold
22 5 0.15 0 1.4 Plates bright up to 0.2 micron.

14. 23kt Rose Gold
23 5 0.05 0 1.5 Plates bright up to 0.2 micron

15. 23kt Yellow Gold
23 5 0 0.1 1.3 Plates bright up to 0.2 micron.


  1. Gold flash or gold strike required if plating any of the above coatings on stainless steel.
  2. We recommend that dull coatings are polished with the Silver and Gold Cloth or for
    coatings in excess of 3 microns, with Autosol followed by Silver and Gold Cloth.
  3. If plating on nickel, a gold flash is recommended.
  4. Gold content of the plate increases with increasing voltage.