Converting a dipping glaze into a brushing glaze can make applying glazes to pottery much easier and more controlled. By adding CMC Gum to your glaze, you can achieve a thicker, creamier consistency that’s ideal for brushing onto your ceramic pieces. Whether you’re working with a freshly mixed glaze or modifying a dipping glaze, CMC Gum is the perfect additive to enhance brushability. Follow this guide to learn how to transform a dipping glaze into a brushable glaze.
What is CMC Gum?
CMC Gum (Carboxymethyl Cellulose) is a popular additive used in ceramics to improve the consistency of glazes. It acts as a thickener, turning thin, watery glazes into rich, brushable solutions. The addition of CMC Gum helps create a smooth, even coat when applying glazes with a brush, making it essential for ceramic artists who want more control over their glaze application.
Why Use CMC Gum to Make a Brushing Glaze?
- Thicker Consistency: CMC Gum thickens the glaze, making it easier to apply evenly with a brush.
- Better Control: Brushing glazes allow for more precise application, especially on intricate or detailed pottery pieces.
- Smooth Application: CMC Gum helps achieve a creamy, smooth glaze, preventing drips and uneven coverage.
Materials Needed
Before starting, gather the following materials:
- CMC Gum Powder or gum solution
- Boiling or Hot Water
- Blender or Immersion Blender
- Measuring Cup
- Glaze
- Water (for thinning the mixture)
Step-by-Step Guide to Turning a Dipping Glaze into a Brushing Glaze
1. Slake the CMC Gum
- In a large container, combine ½ cup of CMC Gum powder with 6 cups of boiling or hot water.
- Stir the mixture and let it slake (sit) overnight. This will allow the CMC Gum to dissolve properly and thicken.
2. Blend the CMC Gum Solution
- The next morning, use a blender or immersion blender to thoroughly mix the CMC Gum solution. The texture should be thick and gooey, similar to snot or gelatin.
3. Adjust the Consistency
- If the solution is too thick, add small amounts of water and blend again until the CMC Gum reaches a pudding-like consistency. This thickness is ideal for mixing into your glaze.
4. Add CMC Gum to Your Glaze
- For a 300g batch of glaze, add a quarter-sized dollop of the prepared CMC Gum solution. You don’t need much—just a small amount to improve the glaze’s brushability.
5. Mix the Glaze
- Stir the CMC Gum into the glaze until it transforms from a milk-like consistency to something creamier and easier to brush. The final glaze should be thick and smooth, perfect for brushing onto your pottery.
Tips for Best Results
- Use the Right Amount: Adding too much CMC Gum can make the glaze overly thick, so start with a small amount and adjust as needed.
- Store Properly: The CMC Gum solution can be stored in an airtight container for several weeks. Be sure to stir it before each use.
- Test the Glaze: Always test the glaze on a small piece of pottery before applying it to your main work to ensure the consistency is right for brushing.
Conclusion
Turning a dipping glaze into a brushing glaze is simple with the help of CMC Gum. By following these easy steps, you can enhance the texture and application of your glaze, making it smoother, thicker, and easier to apply with a brush. Whether you’re working on intricate designs or large surfaces, using CMC Gum will give you the control you need for perfect glaze application every time.
CMC gum is an additive that you add to make a brushing glaze. It makes it thicker and creamier, a lot easier to brush onto your piece. Whether you are adding it to a glaze you just made up to make a brushing glaze or you are adding it to a dipping glaze to make it more brushable CMC gum is a great solution to use.
- Slake 1/2 a cup of CMC Gum powder to 6 cups of boiling or HOT water and let it slake/sit overnight
- In the morning mix using a blender or immersion blender.
- It should be thick and gooey like snot or gelatin
- Thin it with water (in small amounts) to a thick pudding-like consistency
- To make a 300g batch of glaze, add ONLY a quarter-sized dollop of gum
- Mix in until milk-like consistency becomes creamy and delicious!