Duncan Glazes & Underglazes
Guide to Duncan Glaze & Underglaze selection
Which glaze or underglaze should you use?
Choosing a glaze can appear perplexing. In reality, there are only a few criteria you need to consider to make your selection less daunting.
Your choice of glaze or underglaze depends primarily on the firing range of the clay your piece is made from--high fire (cone 8 - 10), mid fire (cone 5-6) or
low fire (cone 04-06) clay. Knowing your clay is the first step to decorating. Under normal circumstances all clays are bisque fired to cone 04 prior to glazing.- Duncan's Underglazes can be applied to the raw clay and to bisque in some instances. Most can be fired to cone 6 with some color variation from firing at cone 06.
- Glazes suited for cone 04/06 clay can sometimes be fired to cone 5/6 with interesting results. On the other hand, glazes suited for cone5/6 will usually not mature at cone 04/06.
Download Duncan's Mid-Range performance Index - What age group is using the product? Some glazes/underglazes are more suited to younger artists.
- What technique you are trying to achieve? There may be a commercial glaze that suits your vision. Please call us if you have questions 303-825-4570
- Like learning computers, the art of decorating pottery is a circle. Jump in and follow one method until another peaks your ineterest. While learning one technique, another is usually closely related. Experiment, test, play and have fun!
- Download Duncan's Creativity Guide for ideas and inspiration (click picture- 17 mb will take spme time to download, but is worth it)
click category below and scroll through selections
Clear Glazes
Use a Duncan Clear Glaze to apply a sparkling, protective finish to ware. We have a wide range of clear dipping and brush-on formulas. |
Courtyard™ Art Glazes
These unique, self-antiquing, lead-free matte glazes result in rich varied color with no two firings giving exactly the same results. |
Crackles™ Glazes
Formulated to create cracks similar to crazing, Crackles Glazes result in a unique antique look. |
Crystals™ Glazes
Crystals Glazes create bright multicolor bursts and specks, unique in every firing. |
Designer Glazes®
Duncan Designer Glazes® makes it easy to create decorative pieces for the home that invoke the feelings of fabrics, textures, and colors in your life. |
Envision® Glazes
Envision® Glazes work with a variety of decorating techniques and produce a distinctively smooth and elegant appearance in colors ranging from opaque to transparent. |
French Dimensions™
French Dimensions are highly dimensional glazes for raised design effects, such as dots, stripes, squiggles and outlines. |
|
Metallic Glazes
These subtle metallics will allow you to create the special finishes that make your work unique. |
Glaze - cone5/6
Renaissance Glazes™
You will love to create with Duncan® Renaissance Glazes™ because the unique and unexpected color breaks once fired ensure individuality of expression.
Download Duncan's Mid-Range performance Index
![]() |
![]() |
![]() |
| Cover-Coat® Opaque Underglazes
Cover-Coat colors are applied directly to greenware, soft fired bisque or bisque. |
Duncan® Concepts® Underglazes for Bisque and Majolica
Bold, vibrant fired ceramic color choice that makes it easy for all skill levels. |
E-Z Stroke® Translucent Underglazes Intense pigment allows high definition and decoration. Watercolor-look with 1 stroke or add shading and depth with more strokes. |
![]() |
![]() |
![]() |
| Essence
Be sure to use Essence to clean brushes and tools used with overglazes. |
Mother-of-Pearl
Translucent overglaze with a lustrous iridescence. |
Precious Metals Go for gold with Duncan's Precious Metals! Apply over fired glaze to add brilliant gold accents that'll make your project look like a million bucks! |
Opaque Acrylic Stains
OS™ Opaque Acrylics provide solid coverage for your pieces and are water-based for easy cleanup. Use them with stencils, sponging, drybrushing and other decorative painting techniques. |
Liquid Pearls
Liquid Pearls™ are acrylic colors with a soft, pearlescent finish. |
Sparklers Brush-On Glitter
These premixed glitter colors are permanent and won't flake or rub off. |
Translucent Stains Oil-Based Translucent Stains are oil-based antiquing translucents in vibrant colors that are wiped back with water. |
|
Ultra Metallics
|
Thin 'n Shade
|
Quick Crackle Quick Crackle is a nontoxic, water-soluble medium used between two nonfired water-based colors to create an antique wood or aged pottery look. |
No-Fire Snow |
Mask 'n Peel™
This water-based emulsion is formulated to protect design areas or colors, making application of background or adjoining colors faster and easier.
|
Wax Resist
Wax resist is a wax emulsion especially created to repel underglazes and glazes applied over it. The wax burns off during firing, revealing designs or base colors. |
||
|
Brush-On Sealers
Brush-On Sealers produce a smooth, hard coating on your acrylic, nonfired projects. . |
Spray Sealers
Ceramic Spray Sealers are final spray coatings that produce smooth, hard surfaces. |
Doll Composition Body
Doll Composition Body is designed for use in plaster ceramic molds to cast pieces. |
Ultra Metallics™ are rich, gleaming water-based metallic colors that won't tarnish. |
Directory of Duncan glazes, underglazes and specialty products for your ceramic masterpiece.
| Underglaze | Glaze Low Fire cone 05/06 |
Glaze Mid Range cone 5/6 |
Spcialty Products, OverGlazes Nonfired Color |
|
| Duncan | • Concepts • Cover Coats • EZ Strokes |
• Clear Glazes • Crackles Glazes • Crystals Glazes • Courtyard Glazes • Designer Glazes • Envision Glazes • Fired Snow • French Dimensions • Metallics Glazes • Satin Glazes |
• Reniassance Glazes, cone 5/6 |
• Wax Resist • Patch-A-Tatch • Mask 'n Peel • Thin'n Shade • Brush Cleaner • Composition Body • Brush-On Sealer • Spray Sealers • No Fire Snow • Opaque Stains • Granite Stone • Quik Crackle • Liquid Pearls • Translucent Stains • Sparklers • Ultra Metallics • Overglazes |
DUNCAN GLAZES & UNDERGLAZES































