Speedball Underglaze Sampler Pack — 12×57 g 2020 Colour Set for Pottery, Durable Opaque Underglazes

This sampler brings together Speedball's 2020 colour release in convenient 2-ounce jars so ceramicists can test, layer, and refine surface designs. The underglazes are formulated to stay put during handling and firing, support detailed techniques like sgraffito and freehand painting, and are labeled for safe use on functional ware when fired and glazed according to instructions.

How will these underglazes behave during application and firing?

These underglazes are designed to give consistent, non-bleeding coverage after multiple liberal coats and hold their hue through a broad firing window. They work well under a clear or covering glaze and are stable from low-fire to higher cone temperatures.

• Opaque pigments that minimize movement and running during drying and bisque handling
• Recommended 2–3 coats for solid, even coverage
• Formulated to perform from Cone 06 up to Cone 6 and can be used at Cone 10 with testing
• Lead-free when used and fired as directed with a covering glaze

What surface techniques are these colours best suited for?

The sampler supports a range of decorative methods, from fine-lined brushwork to resist and incised decoration. Its formulation makes it adaptable for layered effects, subtle washes, and carved accents.

• Freehand brush painting for motifs and detailed imagery
• Sgraffito and mishima: underglaze holds in incised lines
• Watercolour-like washes achievable by thinning with water
• Layering and glazing combinations allow varied surface depth and texture

Which colours are included and how can they help with palette planning?

The pack contains twelve 2-ounce jars selected for a balanced mix of warm, cool, and neutral tones so artists can quickly assess hue interactions on clay. These samples are ideal for building colour studies before committing to larger quantities.

• Saffron Yellow, Peach, Mandarin Orange, Flame Red — warm spectrum choices
• Soft Pink, Carmine Red, Amethyst, Royal Purple — mid and cool pigments
• Blue Frost, Teal, Leaf Green, Avocado — greens and blues for accents
• Compact 2-ounce jars let you trial glazing combinations without waste

Who is this for? The Speedball Underglaze Sampler Pack is aimed at studio potters, hobbyists, and art educators who want a curated set of new hues for testing technique and colour mixing. It's useful for anyone creating functional ware, decorative pieces, or teaching surface design, providing a manageable quantity of each shade for experimentation and classroom use. Always follow firing and covering-glaze instructions for dinnerware-safe results.