Spectrum Metallic Glaze (Cone 05)
Explore Spectrum’s metallic glaze range, designed for low fire cone 05 (approx. 1030°C). Ideal for potters seeking bold metallic effects on earthenware and some stoneware surfaces, these brush-on glazes combine ease of use with striking finishes. From the deep industrial tones of Wrought Iron to the high-shine brilliance of Brushed Bronze, Spectrum metallics offer a reliable way to achieve metal-like surfaces without specialist equipment. Perfect for sculptural ceramics, decorative ware, and statement surfaces. Browse the metallic range at Potclays below.
October 2024 Update: Due to unprecedented global demand, Spectrum Glazes are having difficulty fulfilling distributors' orders. They are working on putting measures in place to increase production and storage capacity, which could take 4-6 months. Thanks for your patience and understanding.
Bronze, Iron and More from Spectrum
Spectrum’s metallic colour range includes rich bronzes, patinated greens, bright golden tones, and atmospheric darks. Options like Green Patina, Moonlight, Green Mirror, and Wrought Iron offer a variety of appearances, from glossy mirror effects to weathered, matte patina finishes.
These Spectrum metallic glazes perform best at cone 05, where the application thickness significantly affects the result. A generous 3–4 coat application is recommended, as the metallic oxides, often copper and manganese, develop their true character when applied heavily. These metallics break, shine, and react differently depending on the clay body, creating subtle variations on white clay and deeper tones on darker ware.
Gloss and Matt Metallic Glazes
Spectrum’s metallic glazes come in both gloss and matte finishes. Shades like 151, 152, and 153 produce a glossy finish, giving off a reflective, almost liquid-metal effect. In contrast, 154, 155, and 156 deliver a more matte, industrial-style metallic surface.
While these glazes are lead-free, they’re not dinnerware safe because they contain heavy metals such as copper and manganese. They’re best suited for decorative ceramics rather than functional tableware. Potters appreciate their versatility, as they allow them to explore metallic surfaces without relying on genuine metal leaf or lustres. Customer reviews consistently highlight their reliable brushability and strong metallic character.
Why Choose Potclays?
At Potclays, we're proud to be considered a one-stop shop for potters of all skill levels. Whether you're a hobbyist or a seasoned professional, you can find a curated range of clay, glazes, tools and accessories and more to suit your current or upcoming projects.
Need help finding the right products? Contact us today. We're here to help you build your pottery supplies.
