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Regular hours: Monday-Saturday 10-3:30

Express pickup available early (9-10) or late (3:30-5) on weekdays by request

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Mayco Fundamentals® Underglazes

Underglazes were the first product line Mayco produced in 1954 and continues to be a staple for many ceramic artists. Mayco Fundamentals® Underglazes are highly versatile – use for complete coverage or in design, apply to clay or bisque –  with a broad firing range of cone 06 to cone 10. Fundamentals® Underglazes serve equally well for the student making their first pinch pot and the clay artist creating works for a gallery.

  • Apple Green Underglaze

    Apple Green Underglaze

    Cone 06: Apple Green will fire matte without addition of a clear glaze. To intensify color or for use on dinnerware, apply clear or matte clear glaze. Cone 6: Color concentration occurs. Recommended clear glaze is SW-001 Stoneware Clear.

    $4.60
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  • Cone 06 Oxidation Cone 6 Oxidation

    Apricot Underglaze

    Cone 06 oxidation: Apricot will fire matte without addition of a clear glaze. To intensify color or for use on dinnerware, apply clear or matte clear glaze. Cone 6 oxidation: Color slightly darkens. Recommended clear glaze is SW-001 Stoneware Clear. Cone...

    $4.60
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  • Cone 06 Oxidation Cone 6 Oxidation

    Aquamarine Underglaze

    Cone 06 oxidation: Aquamarine will fire matte without addition of a clear glaze. To intensify color or for use on dinnerware, apply clear or matte clear glaze. Cone 6 oxidation: Color darkens. Recommended clear glaze is SW-001 Stoneware Clear. Cone...

    $4.60
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  • Baby Blue Underglaze

    Baby Blue Underglaze

    Cone 06: Baby Blue Underglaze will fire matte without addition of a clear glaze. To intensify color or for use on dinnerware, apply clear or matte clear glaze. Cone 6: No change. Recommended clear glaze is SW-001 Stoneware Clear.

    $4.60
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  • Cone 06 Oxidation Cone 6 Oxidation

    Blue Underglaze Grass

    Cone 06 oxidation: Blue Underglaze Grass will fire matte without addition of a clear glaze. To intensify color or for use on dinnerware, apply clear or matte clear glaze. Cone 6 oxidation: Color turns Blue Underglaze. Recommended clear glaze is...

    $4.60
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  • Blush Underglaze

    Blush Underglaze

    Cone 06: Blush will fire matte without addition of a clear glaze. To intensify color or for use on dinnerware, apply clear or matte clear glaze. Cone 6: Color concentration occurs. Recommended clear glaze is SW-001 Stoneware Clear.

    $4.60
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  • Bright Blue Underglaze

    Bright Blue Underglaze

    Cone 06: Bright Blue Underglaze will fire matte without addition of a clear glaze. To intensify color or for use on dinnerware, apply clear or matte clear glaze. Cone 6: Color concentration occurs. Recommended clear glaze is SW-001 Stoneware Clear.

    $4.60
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  • Bright Yellow Underglaze

    Bright Yellow Underglaze

    Cone 06: Bright Yellow Underglaze will fire matte without addition of a clear glaze. To intensify color or for use on dinnerware, apply clear or matte clear glaze. Cone 6: Color concentration occurs. Recommended clear glaze is SW-001 Stoneware Clear.

    $4.60
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  • Cement Underglaze

    Cement Underglaze

    Cone 06: Cement will fire matte without addition of a clear glaze. To intensify color or for use on dinnerware, apply clear or matte clear glaze. Cone 6: Color concentration occurs. Recommended clear glaze is SW-001 Stoneware Clear.

    $4.60
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  • Chestnut Brown Underglaze

    Chestnut Brown Underglaze

    Cone 06: Chestnut Brown Underglaze will fire matte without addition of a clear glaze. To intensify color or for use on dinnerware, apply clear or matte clear glaze. Cone 6: No color change. Finish develops a soft gloss. Recommended clear glaze is SW-001...

    $4.60
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  • China White Gal Underglaze

    China White Gal Underglaze

    Cone 06: China White will fire matte without addition of a clear glaze. To intensify color or for use on dinnerware, apply clear or matte clear glaze. Cone 6: No change. Recommended clear glaze is SW-001 Stoneware Clear.

    MSRP: $96.00
    $94.00
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  • China White Underglaze

    China White Underglaze

    Cone 06: China White Underglaze will fire matte without addition of a clear glaze. To intensify color or for use on dinnerware, apply clear or matte clear glaze. Cone 6: No change. Recommended clear glaze is SW-001 Stoneware Clear.

    $4.60
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  • Chocolate Underglaze

    Chocolate Underglaze

    Cone 06: Chocolate will fire matte without addition of a clear glaze. To intensify color or for use on dinnerware, apply clear or matte clear glaze. Cone 6: Color lightens. Finish develops a soft gloss. Recommended clear glaze is SW-001 Stoneware Clear:...

    $4.60
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  • Cinnamon Underglaze

    Cinnamon Underglaze

    Cone 06: Cinnamon will fire matte without addition of a clear glaze. To intensify color or for use on dinnerware, apply clear or matte clear glaze. Cone 6: Color concentration occurs. Finish develops a soft gloss. Recommended clear glaze is SW-001...

    $4.60
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  • Cocoa Underglaze

    Cocoa Underglaze

    Cone 06: Cocoa will fire matte without addition of a clear glaze. To intensify color or for use on dinnerware, apply clear or matte clear glaze. Cone 6: No change. Recommended clear glaze is SW-001 Stoneware Clear.

    $4.60
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  • Cone 06 Oxidation Cone 6 Oxidation

    Concord Grape Underglaze

    Cone 06 oxidation: Concord Grape will fire matte without addition of a clear glaze. To intensify color or for use on dinnerware, apply clear or matte clear glaze. Cone 6 oxidation: No color change. Recommended clear glaze is SW-001 Stoneware Clear...

    $4.60
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  • Crimson Underglaze

    Crimson Underglaze

    Cone 06: Crimson will fire matte without addition of a clear glaze. To intensify color or for use on dinnerware, apply clear or matte clear glaze. Cone 6: Color concentration occurs. Recommended clear glaze is SW-001 Stoneware Clear.

    $4.60
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  • Dark Grey Underglaze

    Dark Grey Underglaze

    Cone 06: Dark Grey Underglaze will fire matte without addition of a clear glaze. To intensify color or for use on dinnerware, apply clear or matte clear glaze. Cone 6: Color concentration occurs. Recommended clear glaze is SW-004 Zinc-Free Clear.

    $4.60
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  • Dragon Red Underglaze

    Dragon Red Underglaze

    Cone 06: Dragon Red Underglaze will fire matte without addition of a clear glaze. To intensify color or for use on dinnerware, apply clear or matte clear glaze. Cone 6: Color concentration occurs. Recommended clear glaze is SW-001 Stoneware Clear.

    $4.60
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  • Electra Blue Underglaze

    Electra Blue Underglaze

    Cone 06: Electra Blue Underglaze will fire matte without addition of a clear glaze. To intensify color or for use on dinnerware, apply clear or matte clear glaze. Cone 6: Color concentration occurs. Recommended clear glaze is SW-001 Stoneware Clear.

    $4.60
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  • Cone 06 Oxidation Cone 6 Oxidation

    Eucalyptus Underglaze

    Cone 06 oxidation: Eucalyptus will fire matte without addition of a clear glaze. To intensify color or for use on dinnerware, apply clear or matte clear glaze. Cone 6 oxidation: Color slightly darkens. Recommended clear glaze is SW-001 Stoneware...

    $4.60
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  • Fire Engine Red Underglaze

    Fire Engine Red Underglaze

    Cone 06: Fire Engine Red Underglaze will fire matte without addition of a clear glaze. To intensify color or for use on dinnerware, apply clear or matte clear glaze. Cone 6: Color concentration occurs. Recommended clear glaze is SW-001 Stoneware Clear.

    $4.60
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  • Flame Red Underglaze

    Flame Red Underglaze

    Cone 06: Flame Red Underglaze will fire matte without addition of a clear glaze. To intensify color or for use on dinnerware, apply clear or matte clear glaze. Cone 6: Color concentration occurs. Recommended clear glaze is SW-001 Stoneware Clear.

    $4.60
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  • Forest Green Underglaze

    Forest Green Underglaze

    Cone 06: Forest Green will fire matte without addition of a clear glaze. To intensify color or for use on dinnerware, apply clear or matte clear glaze. Cone 6: Color concentration occurs. Recommended clear glaze is SW-001 Stoneware Clear.

    $4.60
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  • Green Mist Underglaze

    Green Mist Underglaze

    Cone 06: Green Mist will fire matte without addition of a clear glaze. To intensify color or for use on dinnerware, apply clear or matte clear glaze. Cone 6: Color concentration occurs. Recommended clear glaze is SW-001 Stoneware Clear.

    $4.60
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  • Cone 06 Oxidation Cone 6 Oxidation

    Grey Underglaze

    Cone 06 oxidation: Grey Underglaze will fire matte without addition of a clear glaze. To intensify color or for use on dinnerware, apply clear or matte clear glaze. Cone 6 oxidation: Color darkens. Recommended clear glaze is SW-001 Stoneware...

    $4.60
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  • Harvest Gold Underglaze

    Harvest Gold Underglaze

    Cone 06: Harvest Gold will fire matte without addition of a clear glaze. To intensify color or for use on dinnerware, apply clear or matte clear glaze. Cone 6: Color concentration occurs. Recommended clear glaze is SW-001 Stoneware Clear.

    $4.60
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  • Cone 06 Oxidation Cone 6 Oxidation

    Ivory Pearl Underglaze

    Cone 06 oxidation: Ivory Pearl will fire matte without addition of a clear glaze. To intensify color or for use on dinnerware, apply clear or matte clear glaze. Cone 6 oxidation: Color slightly darkens. Recommended clear glaze is SW-001 Stoneware...

    $4.60
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  • Ivory Underglaze

    Ivory Underglaze

    Cone 06: Ivory will fire matte without addition of a clear glaze. To intensify color or for use on dinnerware, apply clear or matte clear glaze. Cone 6: No change. Recommended clear glaze is SW-001 Stoneware Clear.

    $4.60
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  • Jade Underglaze

    Jade Underglaze

    Cone 06: Jade will fire matte without addition of a clear glaze. To intensify color or for use on dinnerware, apply clear or matte clear glaze. Cone 6: Color concentration occurs. Recommended clear glaze is SW-001 Stoneware Clear.

    $4.60
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  • Jet Black Underglaze

    Jet Black Underglaze

    Cone 06: Jet Black Underglaze will fire matte without addition of a clear glaze. To intensify color or for use on dinnerware, apply clear or matte clear glaze. Cone 6: No color change. Finish develops a soft sheen. Recommended clear glaze is SW-001...

    $4.60
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  • Kings Blue Underglaze

    Kings Blue Underglaze

    Cone 06: Kings Blue Underglaze will fire matte without addition of a clear glaze. To intensify color or for use on dinnerware, apply clear or matte clear glaze. Cone 6: Color concentration occurs. Recommended clear glaze is SW-001 Stoneware Clear.

    $4.60
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  • Cone 06 Oxidation Cone 6 Oxidation

    Lavender Underglaze

    Cone 06 oxidation: Lavender will fire matte without addition of a clear glaze. To intensify color or for use on dinnerware, apply clear or matte clear glaze. Cone 6 oxidation: Color turns light Blue Underglaze. Recommended clear glaze is SW-001...

    $4.60
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  • Leaf Green Underglaze

    Leaf Green Underglaze

    Cone 06: Leaf Green will fire matte without addition of a clear glaze. To intensify color or for use on dinnerware, apply clear or matte clear glaze. Cone 6: Color changes to a dark olive green. Recommended clear glaze is SW-004 Zinc Free Clear. Color...

    $4.60
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  • Lilac Underglaze

    Lilac Underglaze

    Cone 06: Lilac will fire matte without addition of a clear glaze. To intensify color or for use on dinnerware, apply clear or matte clear glaze. Cone 6: Color lightens. Recommended clear glaze is SW-001 Stoneware Clear: Color concentration occurs.

    $4.60
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Gift certificates are e-Certificates. The recipient will receive an email PDF of the certificate including the message and theme you select. If you wish to have a physical copy of the certificate to gift to someone, enter YOUR email into the recipient line and print the PDF sent to you.

School teachers or secretaries placing your first order

PLEASE CLICK THE "TAX EXEMPT STATUS" LINK above and follow the instructions.

We aim to provide excellent customer service to all potters who chose to shop with us, however, the areas we are able to serve best are in Kansas, Missouri, Nebraska, Iowa, Arkansas, Oklahoma, and Illinois.  There are lots of great clay suppliers nationwide that probably do a better job of serving customers in states further away.  If you would like help finding a local supplier, please let us know.  We will be happy to assist you.  

Please note that we favor long term relationships with our customers over one-time transactions on our website based on a random google search result.  We are not Amazon and don't want to be.  We're a bit old-fashioned I guess...but with a website.  

This is a 40 year old family business, now being run by the second generation.  We generally run on a staff of 10 or less, and we all work really hard.    All employees here are treated like family...we DO also think of our customers as family, but that does mean if you are "tormenting" one of our "little brothers or sisters", we'll "ground" you.  

And if you're *really* naughty, you might get a policy named after you.  So just be nice, ok?  You be nice to us, and we'll do our best for you!  That's a promise.