Welcome to our Help Centre


How do I prepare silver for enamelling?

There are some basic techniques that should be followed to prepare silver for enamelling, namely it needs to be de-greased and de-oxidised. To de-grease...Read more

Do you have any additional information on Sterling Silver?

You can download some more information below: ...Read more

Why does my solder not run freely?

Check that the joint is clean, and that there is no flux on the surface. For more detailed soldering advice click here for our soldering...Read more

What type of solder do I use on silver wire, 1.5mm thickness when making a ring?

We recommend that you use medium solder. Our best seller is our Medium Silver Solder Strip, 1.5mm X 0.70mm, 600mm Lengths, Weight Per Strip 6g. If...Read more

Do you have any additional information for the 18ct Pd 11 White Alloy?

You can download some more information below: ...Read more

Do you have any additional information for the 18ct G Green Alloy?

You can download some more information below: ...Read more

How strong is silver plated wire?

The strength of plated wire will depend on what the silver is plated on. The strength of the silver plated item would also depend on what condition the...Read more

How do I work out the comparative weight?

You can do so using the following page:   Comparative Weights ...Read more

What is wire gauge?

Wire gauge is a measuring system to denote the diameter (thickness) of wire. The system goes from 0000 through to 40. The larger the wire gauge number,...Read more

How do I age harden your palladium 950?

Palladium 950 alloy does not respond to age hardening treatments.   It can be work hardened with reductions of area over 70% possible , but and...Read more

How do I work out what size tube I need for a stone?

Choose a size of tubing that has a smaller inside diameter than that of the stone, and a larger outside diameter.  We sell some Setting books which...Read more

Does the alloy I use contain palladium?

There are white alloys available from Cookson in the 14ct and 18ct ranges that contain palladium.    These generally fall into two types, low...Read more

Why have a hallmark?

Items of jewellery are hallmarked to identify what type of precious metal the piece is made from. Gold, Silver and platinum are all hallmarked.  ...Read more

Do you have properties and process information for your gold?

You can find safety data sheets for all our gold alloys on the table below. Simply click the internal code below. 9ct GoldYellowCYDF   ...Read more

Do you have any additional information for the GW Platinum Alloy

You can download some more information below: ...Read more

Do you have any additional information for the HC Platinum Alloy?

You can download some more information below: ...Read more

What is the best flux to use for soldering gold?

We would recommend Auroflux for Gold Soldering.      ...Read more

Do you offer a hallmarking service?

Unfortunately our hallmarking service is no longer available, contact your local assay office for any hallmarking services.   Edinburgh Assay Office...Read more

Which of your gold sheet suitable for enamelling?

Enamelling requires a minimum temperature of 800°C, so ideally the metal base used should be of a higher carat gold, fine silver, copper, and brass...Read more

Do you have any additional information for the FP Platinum Alloy?

  You can download some more information below:   ...Read more

Does your white gold wire contain nickel or palladium?

The 18ct white gold wire contains Palladium but does not contain Nickel, the 9ct white gold wire does not contain either  ...Read more

Do you have any additional information for the 18ct Pd 12 White Alloy?

You can download some more information below: ...Read more

How do I cast with GW Platinum?

GW Platinum can be cast successfully and does have good form filling capabilities   HC Platinum has increased fluidity and is generally considered a...Read more

Do Cooksongold stock Argentium silver?

Yes, Cooksongold do stock Argentium Silver  ...Read more

How do I buy Fairtrade Gold?

While Fairtrade gold is listed on our site, in order to purchase a Fairtrade Gold product, you must register as a Fairtrade Goldsmith or Fairtrade...Read more

What temperature should I have my flask at when casting?

Low flask temperatures during casting may lead to incomplete filling and porosity due to rapid solidification of the molten metal. High flask temperatures...Read more

Do you have a safety data sheet for Medium Silver Solder?

Here is the safety data sheet for Medium Silver Solder    ...Read more

Do you have a safety data sheet for Sterling Silver?

Here is the safety data sheet for Sterling Silver    ...Read more

Do you have any additional information for the 18ct Pd 8 White Alloy?

You can download some more information below: ...Read more

What metal grade is your brass sheet?

All of the brass we stock meets the CZ108 specifications ...Read more

Why offer Fairtrade gold?

It's a simple, flexible and cost effective way to source the gold you need responsibly and with traceability.It shows your customers that you'...Read more

What is the casting temperature of Cooksongold alloys?

All casting alloys available from Cooksongold are designed to give maximum flow properties when using standard operating conditions.   ...Read more

What thickness sheet do I need to make a brooch/pendant?

1.0mm sheet is a good place to start, because its easy to work with and provides a manageable thickness to work with. ...Read more

Are Cooksongold Palladium solders hallmark quality?

All our palladium solders are above hallmarking standard. The purity ranges from 76-94.4%.    To be eligible for hallmarking, the solder needs...Read more

What do I need to melt fine gold grain down into a solid lump bar?

The easiest and cheapest way of making a relatively small number of small ingots is to  make a mould using a charcoal block (Our product code 999...Read more

Do Cooksongold stock Black Gold?

Cooksongold do not supply Black Gold.   However creating black gold is possible using a few different techniques. Electrodeposition using black...Read more

Do you sell Fine Silver Bars?

Cooksongold offer a range of high quality fine silver stamped investment bars.   Available in five weights from 50g to 1kg99.9% pure silverPopular as...Read more

Do you have a safety data sheet for Extra Easy Silver Solder?

Here is the safety data sheet for Extra Easy Silver Solder   ...Read more