Mayco Stoneware Clear SW-001 – clear stoneware glaze, 473 ml

Mayco SW-001 Stoneware Clear – glossy clear glaze for stoneware and porcelain

Mayco SW-001 Stoneware Clear is a glossy, clear stoneware glaze for stoneware and porcelain clay bodies. It forms a smooth, transparent layer through which the colour of the clay or underglaze decoration stays visible. According to Mayco, it is dinnerware safe. The container holds 473 ml.

The glaze works from cone 5/6 to cone 10. Mayco recommends firing at cone 5/6. For reference: cone 6 corresponds to approx. 1222 °C and cone 10 to approx. 1285 °C (in each case a guide value per Orton chart). According to Mayco, even at cone 10 in reduction firing the clear result is unchanged.

Applying the glaze

Apply the glaze to a soft bisque-fired clay body (bisque firing at cone 04/06, i.e. approx. 1063 °C or approx. 998 °C, guide value per Orton chart). Stir it well beforehand. Then proceed as follows:

• Brushing: apply 2 or more coats
• Dipping: one coat is enough
• Let each coat dry completely before applying the next
• When dipping, aim for a specific gravity of 1.47–1.51
• Do not spray

Underglazes and crazing

SW-001 looks best over most Mayco underglazes. For some green and brown underglazes, Mayco recommends SW-004 Zinc-Free Clear instead: Fundamentals UG021, UG022, UG198, UG210 and UG232 as well as the Designer Liners SG405 and SG406. Applying the glaze too thickly can encourage crazing. So load the brush less heavily or apply fewer coats. If your piece shows cracks, the glaze thickness is the first thing to check.

Mayco SW-001 Stoneware Clear product details

• Manufacturer: Mayco, Stoneware Clear SW-001
• Contents: 473 ml
• Finish: glossy, clear (transparent)
• Firing range: cone 5/6 to cone 10
• Recommended firing: cone 5/6
• Cone 6: approx. 1222 °C, cone 10: approx. 1285 °C (guide value per Orton chart)
• Clay body: soft bisque-fired (cone 04/06)
• Recommended specific gravity: 1.47–1.51
• Application: brushing or dipping, do not spray

You will also need: brush for applying or a dipping container, kiln wash for the kiln shelf, soft bisque-fired ceramics

Do not spray. Mayco's safety information applies when the product is used according to the manufacturer's instructions. According to ACMI, the AP (Approved Product) seal means: no hazard labelling. Further safety information is given in the safety data sheet (SDS) on MaycoColors.com.