Jewellery Tools UK — Hand Tools for Jewellers & Silversmiths

Aluminium Mould Frame, 1-3/8" Thick, Single Cavity Vulcanizer Rubber Casting, 3-3/8" x 4-3/8" Size

Aluminium Mould Frame, 1-3/8" Thick, Single Cavity Vulcanizer Rubber Casting, - Main image
$16.99 $24.99 In stock

Category: Jewellery Making Tools

This robust aluminium mould frame is designed for vulcanizing single-cavity rubber moulds for small jewellery pieces on the bench.

What it does

This mould frame is precisely milled from a solid block of aluminium, ensuring excellent heat transfer for consistent vulcanization cycles. Its compact outer dimensions minimise rubber usage, directly reducing material costs for each mould produced. The frame's perfectly flat, parallel faces guarantee even pressure distribution within your vulcanizer, crucial for capturing fine detail in your wax models. The single, central cavity with gently rounded internal corners is ideal for small rings, pendants, or charms.

How to use it

  • Prepare your wax model and flask.
  • Assemble the rubber mould and frame.
  • Place in vulcanizer and cure as per rubber instructions.

Who it's for

This frame is a practical choice for UK bench jewellers, casting houses, and jewellery design studios focusing on smaller items. It's a cost-effective upgrade for those frequently producing single-cavity moulds, replacing less efficient methods for small-scale production and pairing well with standard vulcanizing presses.

What's in the box

1 x Aluminium Mould Frame

Our promise

UK-stocked at our Birmingham workshop. Same-day dispatch on orders placed before 2pm. Free UK delivery on orders over £30. 30-day returns — try it at the bench.

Before you pay

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When it ships

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Standard Shipping: Handling (business days) 0–1; Transit (business days) 7–15.

Express Shipping: Handling (business days) 0–1; Transit (business days) 7–15.

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If you need a refund

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Delivery costs

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Standard Shipping · United States: $0.00

Express Shipping · United States: $3.99

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Returning an item

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United States · Return window (days after delivery): 30. Return method: By mail. Return postage: Seller pays.

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Customer Reviews (4.6 / 5 · 5 reviews)

Harper U. ★★★★★

Been using this for my small ring moulds and the solid aluminium block really holds the heat evenly during vulcanizing. The cavities came out crisp with no flash, exactly what I needed for delicate jewellery work.

Jason V. ★★★★★

The 1-3/8 inch thickness holds my rubber perfectly steady during vulcanizing, and the milled finish is smooth with no rough edges. Getting clean single-cavity moulds for my small bezel settings has been much easier with this frame.

Benjamin W. ★★★★★

This frame was exactly what I needed for making single-cavity vulcanized rubber moulds—the 1-3/8" thickness feels solid and the precision milling is obvious. The 3-3/8" x 4-3/8" size is perfect for my small jewellery pieces, and it holds up well under pressure.