Moulding service

Moulding allows casters to replicate designs with consistency, precision, and detail.

How moulding works

We offer professional moulding services tailored to meet the needs of both large-scale production and bespoke jewellery pieces. Our moulding process is designed to capture every intricate detail of your original design, ensuring that each cast is a perfect replica.

Holding for Moulding

The moulding compound needs to be contained. We use aluminium frames in various sizes. First we attach a brass rod, called a sprue to the master. This is then fitted into the frame. For non-metal masters we use a wax sprue.

Sizing the Mould

To ensure the best results, the correct moulding frame is carefully selected to give a healthy volume of moulding compound around the master. This is crucial to good casting. See the *diagram at the bottom of this section. We'll always provide you with the most economical sized mould.

Types of Moulding Compound

There are two different types of moulding compound - hot (vulcanised) and cold (RTV). Basically the hot moulds are for metal masters and all the rest can be done at room temperature. The hot moulds are based on a rubber compound that is heated, under pressure to vulcanise into a solid, rubber mould. The cold moulds are a two part liquid which cures at room temperature to give us a solid mould. All moulds shrink, some less than others. The one that shrinks the least is a vulcanised mould using our proprietary compound - less than 2% followed closely by RTV - less than 4%. The most commonly used rubber moulds tend to have a shrinkage rate around 6%. These are not hard-and-fast percentages, every piece experiences different shrinkage rates.

Opening Moulds

The cured mould is removed from the moulding frame. The master is removed by cutting a slit all round the rubber block. Done with a scalpel, it's tricky stuff. The joint line does not need to be flat so we cut lugs on either side of the injection hole. That helps to mould to close into a perfect fit. On top of that the side cuts are zig-zag and the back edge is left uncut, like a book. So, in theory, the mould should close together perfectly. But sometimes it doesn’t and that leaves a fine line round the wax . If we spot it the wax is rejected and we try again .To remove the part line completely is almost impossible. But we do try!

Start Casting

Hear what they say about us

4.5* rated on Google

★★★★★ 4.5/5

Jewellery Casting Scotland have provided a fabulous service for us for may years now, not only a pleasure to do business with, but a fantastic team of people too – we have recommended them to many other jewellers! The best in the business by far!

Linda Macdonald,

Linda Macdonald Jewellery

Our heartfelt thanks to Scotland Casting, not only for offering such expert casting of one of my husband’s jewellery designs, but also for taking over the finishing now that my husband sadly, is no longer with us. They made the whole process easy. They are a thoroughly professional company offering a great service, which has meant that my husband’s silver earring and pendant top design can continue to go out in the world.

Honor & Sabrina,

Avalon Jewellery

Thank you for the photographs of our masters. What a good idea!
You are so organised and this idea works so well for us. The folders that you sent keep everything together and we can see what the codes represent when we have forgotten. Thank you.

Sue Foster,

Aardvark Jewellery Ltd

We want to let you know that we think that you are doing a great job for us and we love the personal service. The urgent order for an 18ct red ring that you managed to get to us in time for our customer’s Wedding Day saved us red faces – thank you.

Nigel Blayney,

Cymru Gold

Within my over 20 year career in the jewellery business, I have worked with many casters but Jewellery Casting Scotland, who I have ordered my castings from for over a year is the one that I appreciate most for their quality and transparent pricing. In addition to that, the exceptionally easy communication and individual approach to every job means I don’t have to look any further for jewellery casting services in the future.

Wiktor,

Wiktor Jewellery

Traditional in our product but modern in its execution, the benefits of speaking with Mike and Trish about your casting needs are as important as the item itself. Fantastic people, fantastic knowledge and fantastic service!!

Alan Cathro,

The Iona Shop

Oh my! A great big thank you to all involved in casting my etched silver hares.
They arrived this morning and they are perfect. Delighted doesn’t even come close to describing how pleased I am.

Jo Bignold,

Lucylou Designs

I have to let you know – I used to use Merrel Casting and another big caster in Birmingham, and I have never received such beautiful, smooth castings – thank you so much!