BOTZ Unidekor (Underglaze) Ceramic Colours Versatile ceramic decoration colours for underglaze, on-glaze, or in-glaze design. Suitable for firing temperatures between 1000–1250°C (cone 06–6). The BOTZ Unidekor range offers incredible creative freedom for ceramic artists. Whether you're decorating bisque, working with raw glaze, or applying design after glazing, these colours adapt beautifully across multiple techniques. With rich pigmentation, smooth application, and consistent results, Unidekor is ideal for both functional ware and artistic surface decoration. BOTZ has long been known for reliability and performance in the kiln. The Unidekor series continues this legacy with excellent firing stability, mixable colours, and compatibility with BOTZ glaze systems. Features Universal ceramic colour system — use as underglaze, on-glaze, or in-glaze Firing stable from 1000–1250°C with satin-gloss finish Highly versatile application methods: Underglaze: apply to bisque and overglaze with BOTZ 9106 (recommended) In-glaze: apply onto unfired glaze ("glaze + paint") — works well with matte BOTZ glazes such as 9108, 9107, 9487–9491, and 9612 On-glaze: apply over fired glaze for decorative accents Suitable for airbrushing (undiluted) Can be used for marbling when slightly diluted on leather-hard or bisque clay Fully intermixable colour palette for creating custom tones Soft pastel shades achievable by mixing colours with Unidekor 4009 White Note: Colours 4003, 4005, and 4015 will reduce slightly in colour intensity above 1100°C Consistent satin-gloss surface after firing View the entire botz underglaze collection here