Application is half the glaze
A glaze recipe describes a material, not a surface. The same recipe dipped, poured, sprayed or brushed onto the same pot will give four different results. Thickness, evenness and the direction of application all change how the glaze melts, breaks on an edge and pools in a recess.
So the question is never "which method is best" but "which method gives the surface I want, with the equipment and safety controls I actually have".
Dipping
Dipping is the standard for even coverage. The pot goes into a bucket of glaze and comes out in one steady motion at a constant speed, which lays down a uniform layer across the whole form.
- Specific gravity1.4–1.5
- ImmersionOne continuous motion, 2 seconds submerged
- Withdrawal speedConstant — a pause causes a drip line
- Best forBowls, plates, mugs, production runs
- GripUse three-point tongs on the inner rim
- Stir from the bottom before every dip — heavy materials settle first.
- Wax the foot ring before dipping so the base stays clean.
- Dip a test tile alongside the pot to keep a record of that batch of glaze.
- Speed of withdrawal controls thickness as much as glaze viscosity does.
Pouring
Pouring is dipping for the pot that will not fit in a bucket. Glaze is ladled over the surface while the pot rotates, and the excess is caught in a tray and returned to the bucket. It gives a soft, slightly irregular surface with visible flow lines.
- Put the pot on a banding wheel or turntable so you can rotate it evenly.
- Pour in one continuous ribbon, moving steadily around the form.
- Use it for large platters, sculptural work and interiors of narrow forms.
- Catch the runoff and return it to the bucket through a sieve.
Spraying
Spraying gives the finest control and the smoothest surface. Because the glaze is built up in passes, you can vary thickness deliberately — thin at the rim, heavy in the recess — and blend colours across a form.
- Nozzle0.8–1.5 mm
- Air pressure15–30 psi
- Glaze viscositySpecific gravity ~1.3
- Distance20–25 cm
- Coats3–4 thin passes, overlapping by half
Atomised glaze is the most hazardous form of studio dust: fine enough to reach the deep lung and carrying silica and metal oxides. Never spray without extraction and a P100 respirator. This is not a preference, it is the condition of using the method at all.
Brushing
Brushing is the most forgiving method and the one most home potters use. You work slowly, correct as you go, and reach into carved or faceted surfaces where a dip would pool and a spray would miss.
- Load a wide, synthetic-bristled brush fully and touch off the excess.
- Apply the first coat in one direction, covering the whole surface.
- Let it dry to a matte finish — do not rush this.
- Apply a second coat at 90° to the first to hide brush marks.
- Add a third coat if the glaze is a light colour, then sponge lightly to level.
One thick coat leaves ridges that survive firing. Three thin coats melt into a level surface. If in doubt, go thinner.
Which method for which job
| Method | Evenness | Safety burden | Best for |
|---|---|---|---|
| Dip | Excellent | Low | Bowls, plates, production runs |
| Pour | Good | Low | Large or awkward forms, interiors |
| Spray | Excellent, controllable | Very high — booth required | Gradients, blended surfaces |
| Brush | Moderate | Low | Detail, pattern, textured surfaces |
Most interesting surfaces use more than one method. Dip the base, spray a gradient over the top, then brush a detail in a third glaze.
Ceramic work involves respirable crystalline silica, kiln temperatures up to 1300 °C and glaze materials that can be toxic in powder form. This guide is an educational reference — it is not a substitute for the instructions supplied with your equipment. Always ventilate, wear appropriate respiratory protection when handling dry materials, and read our studio safety guide.
