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The Cover Coats are Gone we have the ...

Mayco Fundamental Underglaze instead.

Duncan stopped production, this means is that many products will go in and out of stock over the next 4 months. If you need a particular color order it NOW! We are going to display our inventory qty on this website so you can decide what to order better.  See Mayco’s list of the priority Duncan Items it intends to start producing. Download the "Best of Duncan" Palette   And this hastily written...Download the Duncan to Mayco Conversion Chart  Download the latest Mayco/Duncan Price list

Duncan Underglazes

Duncan Underglazes

Duncan Underglazes are for painting a ceramic piece with many colors.
Duncan underglazes come in three types:

  • Opaque, the Cover-Coats. Cover-Coats are nontoxic clay and water based opaque underglazes. These opaque colors are to be used when areas of solid-color coverage are desired.
  • Translucent the EZ Strokes. Think of the EZ's as water colors. Their translucent quality makes them suitable for use with a number of decorating techniques including airbrushing, antiquing and brushstrokes. 
  • Underglaze colors designed primarily for decorating bisque the Concepts have a glossy sheen when fired. One, two, or three coats may be applied.

    All underglazes can be covered with a clear glaze and fired to cone 06
    Select a subcategory
  • Concepts Underglazes For Bisque - Duncan

    Concepts Underglaze for bisque by Duncan

    The first coat is translucent. The second is semi-opaque. The third is opaque. Normal use is to apply 1-3 coats on bisque, let dry and cover with two coats of your favorite clear glaze. 

    Use them as  Majolica paints on top of unfired non-moving opaque white or light colored glaze. No need to clear glaze as Concepts are shiny when fired. Try using them on tile, at cone 6 (on appropriate clay), in a spray bottle, these paints are versatile.

  • Cover-Coat Opaque Underglazes

    Sun plate by Jerry Frutchey.

    All Cover-Coats are discontinued, we will replace them with Amaco Velvets, Mayco Fundamentals, Coyote UG's, and Spectrum Underglazes. Meanwhile if there is a BUY BUTTON you can still get some!

    For solid color, 3-coat coverage on greenware.

    If you love layers, coat your pieces with Duncan's Cover-Coat® Opaque Underglazes! Applied directly to greenware, soft-fired bisque or bisque, these underglazes provide solid coverage over even the darkest colors, and are perfect for airbrushing and brushwork. Cover-Coats® fire to an opaque, porous matte finish and are safe for food when a Duncan food-safe clear glaze is applied over them. 

    (Use Envision Clear Glaze)

  • E-Z Stroke Translucent Underglazes by Duncan

    E-Z Stroke Translucent Underglazes

    for Greenware Or Bisque

    EZ Strokes have become popular for their versatility. Their translucent quality makes them suitable for use with a number of decorating techniques including airbrushing, antiquing and brushstrokes. One stroke is all you need for most design work. One or two additional strokes may be added for depth and shading while the color is still wet. if additional coats are applied after the color has dried, the heavy build up may cause popping off, bleeding and bubbling.

    30 EZ Stroke colors can be applied directly to bisque, check the label for details. EZ Strokes may be applied over most and underglazes, including Cover- Coats and other EZ Stroke colors, allowing the base color to show through. They may also be used to change clay slip, most glazes, fired snow and other EZ Stroke colors.


    • One coat for translucent designs
    • Additional coats for depth and shading
    • Apply to greenware or unfired glaze or bisque if labels so indicates
    • Fire to shelf cone 04 (most colors can be safely fired to cone 6 except the pinks and purples)
    • Many colors also come in pint size