General Purpose Glossy Base 1 (Mastering Glazes)
Recipe
Notes
In Mastering Cone 6 Glazes, the Glossy Clear Liner is meant to stay clear. This base is adapted to being a foundation for color experiments using oxides and stains. Key Properties • Visual Appearance: In its base form, it is a clean, transparent-to-translucent gloss. It is slightly more "active" than the Liner glaze, having a bit more depth and fluid character. • The Science: It is a Calcium-Alumina-Silicate glaze. It accepts colorants more vibrantly, especially Chrome, Cobalt, Copper, and Iron. • Surface: High-gloss and reflective. It creates a "wet look" that can make colors pop and appear more saturated. • Versatility: It is stable enough for functional ware but responsive enough to be used for decorative layering. Likes (Pros) • A "Canvas": This is the best recipe in the book for creating your own "house colors." • Excellent Melt: It has a very reliable melt at Cone 6. It flows just enough to smooth out any brush strokes or uneven dipping marks. • Strong Color Development: It doesn't "muddy" colors. Blues come out crisp, and greens come out bright. • Durability: It meets the authors' standards for stability and acid resistance, making it suitable for the outside (and often inside) of dinnerware. Dislikes (Cons) • Crazing Risk: Like many glossy glazes, it has a moderate thermal expansion. It may craze on low-expansion clays (like some high-iron red stonewares). • Thickness Sensitivity: While it isn't as runny as Waterfall Brown, it is more mobile than the High Calcium Mattes. • Bubbling on Dark Clays: On certain dark, gas-heavy clay bodies, this can occasionally trap "off-gassing" bubbles, resulting in tiny pinholes if the kiln isn't soaked at the peak temperature.
Description
From page 92 in Mastering Glazes book