How to Glaze Your Pottery Properly

Glazing involves dipping, brushing, or spraying the glaze onto the pottery. Proper application ensures even coverage and prevents defects like crawling or pinholes. A well-applied glaze enhances the aesthetic appeal and functionality of a ceramic piece by providing a smooth, durable, and often waterproof surface.

Preparing Your Pottery for Glazing

Before applying glaze, pottery must be thoroughly cleaned to remove dust and debris. This ensures that the glaze adheres properly.

• Use a damp sponge to wipe off any dust.
• Check for cracks or imperfections before glazing.
• Apply wax resist to the base of the piece to prevent glaze from sticking to the kiln shelf.

Methods of Applying Glaze

Dipping

Submerging pottery into a glaze bucket provides an even coat. Hold the piece steadily and dip it for a few seconds.

• Pros: Quick and uniform coverage.
• Cons: Requires large amounts of glaze and careful handling.

Brushing

Brushing glaze with a soft brush allows for detailed work and layering effects. Use multiple thin coats to avoid streaking.

• Pros: Good for intricate designs and small batches.
• Cons: Can leave visible brush marks if not applied evenly.

Spraying

Using a spray gun or airbrush, glaze can be misted onto pottery for a smooth, even finish. This method is useful for layering different colors.

• Pros: Provides a smooth and even application.
• Cons: Requires special equipment and ventilation.

Common Glazing Defects and How to Avoid Them

Crawling

Occurs when the glaze pulls away from the surface, creating bare spots. This is often caused by dust, grease, or thick application.

Pinholes

Small holes in the glaze caused by trapped air bubbles. To prevent pinholes, ensure thorough bisque firing and apply glaze in thin, even layers.

Dripping

Excess glaze can drip and fuse to the kiln shelf. Wipe off excess glaze from the bottom of the piece and use stilts if necessary.

Final Firing

Once the glaze is applied, the pottery is fired in a kiln at the appropriate temperature. The firing process fuses the glaze to the clay body, creating a finished piece with vibrant colors and a durable surface.

Conclusion

Proper glazing techniques enhance the beauty and durability of pottery. Whether dipping, brushing, or spraying, careful application and attention to detail will help achieve the desired results.