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Unlocking the Secrets of Underglaze and Transparent Glaze: Tips and Tricks for Perfect Pottery

 

When it comes to ceramics, combining underglaze with transparent glaze can create stunning effects, but it also brings its own set of challenges. This article will dive into the relationship between underglaze and transparent glaze, common issues, and expert tips to help you achieve the best results.

Mastering the Art of Underglaze and Transparent Glaze

Understanding Underglaze and Transparent Glaze

Underglaze is a colored decoration applied to pottery before it is glazed. Unlike traditional glazes, underglazes don’t turn glossy when fired, allowing for detailed designs and vibrant colors to remain stable.

Transparent Glaze is applied over the underglaze to seal and protect the decoration, giving the piece a glossy, satin, or matte finish. It also makes the pottery food-safe and more durable.

Common Issues and Misconceptions

1. Cloudiness in Transparent Glaze

  • Problem: Applying transparent glaze too thickly can result in a cloudy finish.
  • Solution: Apply the glaze in thin, even layers. For instance, you might use a spray gun to ensure a more controlled application compared to brushing or dipping (Pottery Crafters, 2022).

2. Bubbling and Pinholes

  • Problem: These can occur if the underglaze layer is too thick or incompatible with the transparent glaze.
  • Solution: Make sure the underglaze is applied evenly and thinly. Conduct tests with different underglaze and glaze combinations to find the best match (Reddit, 2023).

3. Smudging of Underglaze

  • Problem: Applying transparent glaze over underglaze can sometimes smear the design, especially if not bisque-fired first.
  • Solution: Bisque fire your piece before applying the transparent glaze to stabilize the underglaze and prevent smearing (Ceramic Arts Daily Community, 2013).

Techniques for Best Results

1. Spraying the Glaze

  • Spraying the transparent glaze can help you achieve a light, even coat, preventing issues like cloudiness and bubbling. Though it requires some investment in equipment, the level of control it offers is invaluable (Pottery Crafters, 2022).

2. Testing and Experimentation

  • Conducting test firings on small pieces allows you to understand how your specific underglaze and glaze combination behaves. This practice saves time and resources, ensuring consistent results on larger projects (Artabys, 2023).

3. Proper Application Techniques

  • When brushing, use a soft brush and apply multiple thin layers rather than one thick layer. For dipping, make sure the glaze is well-sieved and the piece is dipped evenly. These techniques help maintain the integrity of the underglaze design (Pottery Crafters, 2022).

Practical Scenarios and Tips

Applying Transparent Glaze Over Underglaze on a Vase

  • Imagine you’ve created a beautiful floral design with underglaze on a vase. After bisque firing, you’re ready to apply the transparent glaze. To avoid smudging your design, use a spray gun for a thin, even coat. This ensures your floral patterns remain vibrant and clear.

Creating a Set of Plates

  • You’ve decorated a set of plates with intricate patterns using underglaze. Before applying the transparent glaze, bisque fire the plates. Then, dip them into a well-mixed transparent glaze, ensuring an even coat. This method helps you achieve a consistent finish across all plates.

Mastering the Art of Underglaze and Transparent Glaze

Combining underglaze and transparent glaze can yield beautiful and durable ceramic pieces. By understanding common issues and employing best practices, you can enhance your pottery projects and avoid potential pitfalls. For those new to pottery or looking to improve their techniques, experimenting with different methods and materials is key.

Explore a wide range of high-quality, beginner-friendly, and eco-friendly underglaze products at CÍ’s official store. Perfect for both adults and children, our products ensure safe and creative pottery experiences.

 

 

References

  • Reddit. (2023). "Can you apply clear glaze directly over underglaze without firing in-between?" Retrieved from Reddit
  • Ceramic Arts Daily Community. (2013). "Applying clear glaze over underglaze." Retrieved from Ceramic Arts Daily
  • Pottery Crafters. (2022). "21 Essential Underglaze Tips For Pottery." Retrieved from Pottery Crafters
  • Artabys. (2023). "How To Use Underglaze: Mastering the Art of Underglaze." Retrieved from Artabys

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