EN 
FR 
DE 
RU 
ES 
AR 
JA In ceramic tableware manufacturing, glaze decals techniques play a crucial role in determining the product’s color, texture, and durability. The three main glazing methods—overglaze, in-glaze, and underglaze—each have distinct characteristics in terms of production process, visual effect, and durability. As a professional ceramic tableware manufacturer with 30 years of experience, we will reveal the mystery of glaze by comparing the three processes.
What are the differences between overglaze, inglaze and underglaze?
Overglaze Decoration: Painting or decals on the fired glaze surface, and then firing at low temperature (usually at 700-900°C). This process is widely used in traditional ceramic art, with rich colors and low cost, but it is easy to wear and fall off, and there may be a risk of lead and cadmium dissolution.
In-Glaze Decoration: Painting and decals are applied on the glazed but unfired body, and then fired at high temperature (usually 1100-1300°C) with the glaze layer. During firing, the design melts into the glaze, becoming an integral part of the ceramic surface. This process creates a smooth, durable finish. The pattern is wrapped in the glaze layer, which is wear-resistant and corrosion-resistant, and safe and non-toxic.
Under-Glaze Decoration: Painting or applying decals directly onto the ceramic body before applying the glaze. The piece is then fired at a high temperature (typically 1200-1400°C), ensuring the design is fully covered by the glaze and fused with the ceramic body.
Overglaze VS. Inglaze VS. Underglaze
| Glazing Type | Color Performance | Durability | Application | Cost | Compatibility |
|---|---|---|---|---|---|
| Overglaze | Most vibrant, allows gold and hand-painted effects | Less durable, prone to fading | Decorative and customized products | Low | Not suitable for microwaves/dishwashers |
| In-Glaze | Rich yet soft colors, fused with glaze | Highly durable, wear-resistant | Ideal for premium dining and household use | Medium | Microwave and dishwasher safe |
| Underglaze | Stable but limited color range | Most durable, never fades | Traditional porcelain and high-end ceramics | High | Microwave and dishwasher safe |
Why choose in-glaze decoration?
In-glaze decoration combines the color expression of overglaze color and the durability of underglaze color, becoming an ideal process for modern high-end tableware. For restaurants, hotels, and high-end custom brands, glaze-colored ceramic tableware has the following advantages:
- Durable: Long-term use will not fade due to friction or washing, suitable for high-frequency use scenarios.
- Healthy and environmentally friendly: Lead-free and cadmium-free, high-temperature firing ensures safety.
- Visual beauty: Soft and rich colors, can be customized in a variety of styles, both beautiful and practical.
- High commercial value: Suitable for high-end catering and hotel customized brands to enhance brand image.
Conclusion
In the production of ceramic tableware, the glaze color process determines the beauty, durability and scope of application of the product. Overglaze color is suitable for decorative products, underglaze color is suitable for traditional ceramics, and in-glaze color has become the mainstream choice for modern tableware. As a ceramic tableware manufacturer, we focus on glaze color technology and provide high-quality tableware solutions for global customers. If you have any customization needs, please contact us for more details!
