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Vitraglaze Stoneware Glaze: Sapphire Blue Matt

SKU: A027
Our very own Stoneware Glaze range all tested on our Vitraclay bodies.
£14.84
£12.61

£10.51 ex. VAT

23 in stock
More details

Product Details

Product Information

Liquid brush-on ml, powder kg.

A very bright blue matt glaze. This true matt surface is smooth and silky to the touch and incorporates micro-bubbling, which gives them their matt appearance. This contrasts with the underfired glazes often sold as matt, which have a rough surface, hence the name true matt.

Firing and Working Notes

Firing Range:

1222°C to 1280°C (Cone 6 to Cone 9).

The sample shows two applications on Vitraclay White Throwing Clay, fired to 1240°C.

Suitable for Stoneware clay.

Working Notes:

The colourants used in this series include cobalt; therefore, we advise that it may not be suitable for food bearing surfaces. Please read our food safety advice.

  • The chemistry of this glaze has more zinc than boron so it can fire fast.
  • If preparing from powder and applied too thickly, it will likely crawl on very absorbent surfaces. We suggest adding a little CMC to slow the drying process.

For advice and tips on application with a brush-on, please refer to the article in our knowledge base. "Application with a Brush".

For powdered glazes, please read the article "More About a Dipping Glaze".

This glaze is unlikely to be safe for dinner/tableware. To be certain, you will need to submit your wares for testing at a reputable laboratory. In the UK, the emphasis in law is to the ‘maker’ who takes responsibility for the food/dinner safety of a glazed or unglazed ceramic ware.

For further reading, please read our knowledge base article "Food Safety in Ceramics".

Health & Safety

Lead Free.

Refer to each SDS below for the individual hazards of each glaze.

General Advice:

When handled sensibly, a 'brush-on' glaze presents no serious health issues, but to be safe, do not ingest the liquid and avoid contact with your skin and eyes.

A powder or dried brush-on glaze presents a hazard. It may contain crystalline silica and other materials, which, when inhaled, can cause long-term damage to the lungs or other health problems. We suggest when working with powders or when cleaning, wear an FFP3/P3 mask and filter and use a wet sponge.

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