MIXING DRY GLAZE

Mixing dry glaze is one of the most cost effective and flexible ways to glaze ceramics. Unlike liquid glazes, dry glaze comes as a powder that needs to be hydrated, mixed, and sieved before it’s ready for application. The process is simple once you know the steps, but safety and precision are essential.

Safety First

Dry glaze materials contain silica and other fine particles that should never be inhaled. Always wear a NIOSH approved respirator or at least an N95 dust mask when handling powders. Gloves and safety glasses are also recommended, especially if you’re mixing for long periods. Work in a well ventilated area, keep powders away from kilns or fans, and always clean up with a wet sponge or mop — never sweep dry dust.

Tools Needed

A clean bucket (1–5 gallons, depending on batch size)
A digital scale for weighing powder
A container for measuring water
A sturdy mixing tool (long stick, drill with mixer, or immersion blender)
A fine mesh sieve (60–80 mesh)
A second bucket for sieving into
Waterproof marker for labeling

Mixing Process

1. Measure the Water
Start by adding about two-thirds of the recommended water into your bucket. A common starting point is one pint of water for every pound of dry glaze, but always check the manufacturer’s instructions.

2. Add the Dry Glaze
Weigh out the amount of dry glaze you want to mix on your scale. Slowly sprinkle the powder into the bucket of water rather than dumping it in all at once — this prevents clumps and makes mixing easier.

3. Mix Thoroughly
Stir until there are no visible dry spots. If using a drill mixer, move it slowly to avoid splashing. Let the mixture sit for 15–20 minutes to allow the glaze to fully hydrate before the next step.

4. Sieve for Smoothness
Pour the glaze through your sieve into a second bucket. Push the remaining clumps through with a rib or brush. This ensures consistency and an even glaze surface.

5. Adjust Consistency
The ideal glaze consistency is similar to whole milk or light cream. Don’t worry if you’ve added too little or too much water — both are easy to fix. If it’s too stiff, simply add more water. If it’s too thin, let it settle, pour off the excess water, and remix.

6. Label and Store
Mark the bucket with the glaze name, firing cone range, and the date you mixed it. Glazes settle over time, so always stir thoroughly before each use.

Tips for Success

Always run a test tile before glazing a full kiln load. Water content, glaze thickness, and clay body all affect results.
If your glaze hard pans (forms a solid layer at the bottom that’s difficult to remix), add a small amount of Epsom salts or another flocculant to help keep particles suspended.
Keep a glaze log with your mixing ratios, water amounts, and firing outcomes so you can repeat successful batches.

Cleanup & Disposal

Glaze water should never be poured directly down the drain. Instead, allow it to settle in a bucket, pour off the clear water, and dispose of the sludge as solid waste. Tools and buckets should be rinsed into a reclaim bucket to avoid sending glaze material into your plumbing.