Mayco Stoneware Midfire Brushable Glaze SW-004 Zinc Free Clear

SW-004 Zinc Free Clear is a transparent stoneware glaze designed to protect colours made with chrome-based pigments. It produces a smooth clear surface at cone 6 oxidation, with no significant change reported at cone 10 reduction.

At a glance

Colour code

SW-004

Range

Mayco Stoneware

Firing

Cone 5–10

Format

Brushable glaze

Jar sizes

472 ml

Colour & firing notes

Keep the coating controlled: an excessively thick application can turn cloudy. Match the clear glaze to the specific underglaze and firing temperature.

How to apply

• Stir thoroughly before brushing, especially when crystals or specks have settled. Follow the individual label for the coat count and let coats dry.
• The colour description uses the stated firing conditions. Cone 10 reduction can give a very different result from cone 6 oxidation; match the clay and kiln programme to the intended firing.

Food-contact suitability

Check the current jar label for food-contact suitability. A finished piece needs a sound, cleanable glaze surface that fits the clay and has matured correctly; a product label alone does not certify every clay, glaze or layered combination.

Before glazing a full piece

Fire a test tile on your chosen clay before glazing a full piece. Record the coats, firing cone and cooling programme. Photographs show example fired results; clay colour, kiln atmosphere and application can change the appearance.

Manufacturer & supplier guides

• Mayco colour and firing guide
• CCG product guide

Need help comparing colours? Browse Mayco glazes or contact our Queenstown studio.