Spectrum's 500 Series Underglazes are all lead free, dinnerware safe, and A/P non-toxic when covered with a clear glaze. Underglazes can be used at almost any temperature range and can be applied to bisque or raw clay. Two to three coats are required for opaque, vibrant colours. The samples shown are at Cone 05, but these underglazes can be fired from low-temperature (Cone 06/04) to high-temperature (Cone 9/10). Some variation in colour will occur at higher temperatures and also different clear coats and thicknesses can affect the hue of each underglaze. 

• Rich, vibrant colours.
• Intermixable to create your own colours.
• Wide firing range of Cone 06/04 to Cone 9/10.
• Can be applied to Greenware and Bisque.

Click here for the downloadable Spectrum 500 Series Underglaze Colour Chart.

Note: Gallon sizes are available for special order through our website (we do not stock all colours). Delivery timeframe is approximately 2 weeks. Product and shipping are to be paid at time of order. At this time we do not take backorders for the 4oz or Pint size (must be in stock to order).