GLAZE RECIPE DIGITAL DOWNLOAD

The honest answer is — it depends.
But there is a reliable starting point.

STARTING RATIO

A good baseline is 1:1 (water : glaze powder) by weight.

However, in practice, I always recommend starting slightly thicker, then gradually adding water as you go. It’s far easier to thin a glaze than to fix one that has become too runny.

For consistency and repeatable results, working with Specific Gravity (SG) is essential.

As a general guide:

• Spraying: ~1.40 (thinner)

• Dipping: ~1.45 (medium)

• Brushing: ~1.50 (thicker)

This means:
100 ml of glaze should weigh between 140–150 g, depending on your application method.

Special-effect glazes — such as lava or crawl glazes — often benefit from being even thicker, but this still depends on how you apply them (dipping, brushing, layering).

Always begin thicker and slowly add water.

If your glaze becomes too thin:

• Let it settle for a few hours

• Carefully pour off excess water from the top

This is a simple but very effective way to correct consistency without compromising the glaze.

You don’t need any special equipment to measure Specific Gravity accurately.

The simplest and most reliable method is weighing.

WHAT YOU NEED:

• a digital scale

• a container or cup

• water

• your glaze

STEP-BY-STEP:

1. Place your empty container on the scale and tare it to zero

2. Fill it with exactly 100 ml of water → this should weigh 100 g
   (this helps you confirm your measurement reference)

3. Empty and dry the container

4. Fill it with 100 ml of your glaze

5. Weigh it

HOW TO READ THE RESULT:

• 140 g = SG 1.40 (good for spraying)

• 145 g = SG 1.45 (good for dipping)

• 150 g = SG 1.50 (good for brushing)

This method is:

• fast

• accurate

• repeatable

…and once you start using it, it becomes an essential part of your glaze routine.

A SMALL BUT IMPORTANT HABIT

Always record:

• the SG

• your application method

• and the firing result

Over time, this becomes your personal glaze map — and this is where real control begins.

Exact water amounts cannot be prescribed universally, as they depend on:

• application method (brushing, dipping, spraying, layering)

• glaze composition

• clay body absorption

• desired thickness and effect

Some glazes prefer thick application, others need to be built in layers.

All of our glaze recipes are developed and tested in high-fired oxidation, specifically at cone 7 (around 1260 °C), and generally perform within the cone 6–9 range.

The surfaces you see in the photos — the way the glaze pools, breaks, flows, or develops texture — rely on the glaze reaching at least the lower end of this maturity range.

WHAT HAPPENS AT CONE 6?

When fired lower, such as cone 6 (around 1220 °C), the glaze may not fully develop the same effect.

You may observe:

• a more matte or drier surface

• less movement or pooling

• slightly different color development

With special-effect glazes — especially lava and crawl glazes — this becomes even more noticeable.
These surfaces rely heavily on heatwork to develop their characteristic texture, so at lower temperatures they may appear more subdued or not fully activated.

IS IT STILL POSSIBLE?

Yes — many potters do experiment with these glazes at cone 6 and sometimes achieve interesting results.

However, because we have not tested them at this temperature, we cannot guarantee:

• the final surface

• the exact color

• or the effects shown in our examples

HOW TO GET CLOSER RESULTS AT LOWER TEMPERATURES

If your kiln reaches around 1240 °C, you are already quite close to the intended glaze behavior.

You can also increase heatwork by:

• slowing down the firing

• adding a soak/hold at peak temperature

This can help the glaze mature more fully, even if the peak temperature is slightly lower.

With glazes — especially special-effect surfaces — the following factors all play a role:

• glaze thickness

• application method (dipping, brushing, spraying, layering)

• firing temperature

• firing curve (speed, holds, cooling)

• kiln position (top, middle, bottom shelf)

• clay body

Each of these variables can significantly influence:

• surface texture

• colour

• movement and pooling