Duncan Ceramics Cover-Coat 2oz - Walnut Brown
Not Available
Not Available
Currently unavailable
Currently out of stock
This product is not available at the moment. Check back later or explore other options below.
Product Information
Full details
This guide is for ceramic artists and hobbyists seeking reliable opaque underglaze coverage. The Duncan Ceramics Cover-Coat in Walnut Brown provides solid, matte coverage over dark colors and is ideal for detailed brushwork or airbrushing, though it requires a food-safe clear glaze for consumable surfaces. Key features include its opacity, ease of use on bisque, and ability to be tinted for custom colors.
All features
| Model Part Number | CLDN-CC117-2OZ |
|---|---|
| Brand | Duncan Ceramics |
Extended Product Information
FAQs
How many coats of Cover-Coat are recommended?
Duncan recommends applying approximately three coats for solid, opaque coverage on bisque.
Can I apply Cover-Coat directly to clay that hasn't been fired?
No, Cover-Coat is designed to be applied directly to bisque-fired (cone 04 or higher) clay.
Is Walnut Brown Cover-Coat food safe on its own?
No, Cover-Coat underglazes are not food safe on their own. A food-safe clear glaze must be applied over the fired underglaze and re-fired for consumable surfaces.
How do I create custom colors with Walnut Brown?
You can tint Walnut Brown Cover-Coat by mixing it with other Cover-Coat colors or Duncan E-Z Stroke Translucent Underglazes to achieve custom hues.
What is the firing temperature for Cover-Coat?
Cover-Coat should be fired to shelf cone 04 to permanently adhere to the bisque. If applying a clear glaze for food safety, fire to shelf cone 06.
How should I clean my brushes after using Cover-Coat?
Clean all brushes and tools with water immediately after use, before the underglaze dries.
Can I layer different colors of Cover-Coat?
Yes, Cover-Coat dries quickly, making it suitable for layering colors efficiently.
Troubleshooting
Underglaze is too thick or stringy
Add a few drops of water and mix thoroughly. For airbrushing, thin to desired consistency with water or an airbrush medium.
Uneven coverage after application
Ensure the bisque surface is clean and free of dust. Apply additional thin coats, allowing for proper drying time between applications. Ensure consistent brush pressure.
Underglaze is peeling or chipping after firing
Ensure the piece was fired to the correct shelf cone 04. The bisque surface may have been contaminated with dust or oils; clean thoroughly before application. Ensure adequate drying time before firing.
Color appears different after firing
Underglaze colors can vary slightly based on application thickness, firing conditions, and clear glaze used. Test colors on a sample tile before applying to a final piece.
Pros and Cons
Pros
- Excellent opacity for covering dark surfaces.
- Dries quickly, allowing for layering.
- Can be used with airbrush or traditional brush.
- Tintable for a wide range of custom colors.
- Becomes food safe when properly clear-glazed.
Cons
- Requires a separate clear glaze for food safety.
- Fires to a porous matte finish, which may not be desired for all applications.
- Application directly to bisque means final firing temperatures are critical.
- 2oz bottle size may be limiting for larger projects.
Setup, Compatibility & Care
To use Duncan Cover-Coat Opaque Underglaze (Walnut Brown), ensure your ceramic piece has been fired to a bisque state. Shake the 2oz bottle well before use. Apply approximately three coats directly to the bisque surface using a brush or airbrush. Allow each coat to dry partially before applying the next. Fire the piece to shelf cone 04 to permanently set the underglaze. If the piece is intended for food or drink, apply a food-safe clear glaze over the fired underglaze and fire again to shelf cone 06. Clean up all brushes, tools, and spills with water while the underglaze is still wet. Store the underglaze in its original container with the lid tightly sealed, away from extreme temperatures.
Compatibility:
- Compatible with other Duncan Cover-Coat colors and Duncan E-Z Stroke Translucent Underglazes for custom color mixing.
- Requires a food-safe clear glaze for consumable surfaces.
Care:
- Clean up wet product with water.
- Store in a cool, dry place with lid sealed.