Stainless Steel Casting Ring
Stainless Steel Casting Ring Stainless Steel Casting Ring Stainless Steel Casting Ring
Economy Diamond Hand Pads

Economy Diamond Hand Pads

Steel Ruler 30cm

Steel Ruler 30cm

Stainless Steel Casting Ring

40% of 100
From £21.99 £18.32
More than 10 in stock

Create thicker glass projects which can be displayed as flat pieces or slumped into beautiful bowls. These casting rings are perfect for turning scrap glass into amazing conversation pieces!

Simply line the inside edge or the ring with a double layer of fibre paper, fire the piece in the kiln and voila – you’ve created a perfect circle!

These casting rings are ideal for:

  • Pot melts
  • Damming glass thicker than 6mm
  • Strip construction
  • Using up scrap glass

Product dimensions:

  • Small – 15cm diameter (2cm depth)
  • Medium – 20cm diameter (2cm depth)
  • Large – 30cm diameter (2cm depth)

We recommend lining the inside edge ring with a double layer of 3mm fibre paper to account for shrinkage or movement during firing. Place the casting ring directly on a kiln washed shelf; Thinfire or similar kiln paper may result in the paper being trapped in the glass if using scrap, strips or frit.

Glass can be filled to level with the top of the ring or see fill weight below:

  • 30cm = 3534g
  • 20cm = 1570g
  • 15cm = 883g

Please note: Make sure to remove any protective film or stickers from the rings before use.

Use the 30cm ring with our 1.5kg Variety Offcuts to create amazing display pieces! Try layering with clear glass to add additional depth.


Example piece made using the 30cm ring, Blue Variety Offcuts and then slumped in mould 8134:

Blue Variety Offcuts Example

Each ring may vary slightly due to the manufacturing process so we would always recommend, if you are cutting glass to fit inside the ring, cutting the glass to the size measured from the actual casting ring once you have lined it with fibre paper rather than relying solely on the dimensions shown.

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Customer Questions
do you pre-fire stainless steel moulds

It is a good itea to pre-fire stainless steel moulds to the draping temperature, before adding Boron Nitride and firing with the glass. This burns off any oils from the mould. Please note that the mould will discolour on firing. This is normal.

Can this be used at casting temperature, ie 830 - 840C?

We have tested this product to 820c and it has been fine. We have not tested it at hotter tempreatures but I would have thought it would be fine. 

What is the thickness of the steel?

The thickness of the steel is between 1 - 2 mm thick

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