Fused Glass with Copper Carbonate

Create Stunning Bubble Effects in Fused Glass with Copper Carbonate

If you’ve ever wanted to add depth, movement, and that dreamy bubble effect to your work, Copper Carbonate might just become your new favourite powder.

What is Copper Carbonate in Glass Fusing?

Copper Carbonate is a fine powder used between layers of glass. When fired in the kiln, it reacts with heat and releases gases, creating bubbles surrounded by blue and green tones

It’s not just about colour. It’s about creating texture and atmosphere inside your glass. Best part is the powder can go on any COE of glass.

What Effects Can You Create?

Bubble Effects

When trapped between layers of glass, Copper Carbonate releases gas during firing, forming floating bubbles inside your piece. This is one of the most popular techniques, especially for jewellery.

Watch tutorials:

Fused Glass Bubble Pendants Using Copper Carbonate by  Jamaison Schuler

Make a fused glass bubble bowl - made with copper carbonate by Lena Beckéus

Ocean & Organic Colours

Expect tones of turquoise, green, and blue depending on how lightly or heavily you apply it. These colours develop during firing as Copper Carbonate reacts within the glass, often alongside bubble formation.

👉 Learn more about how these reactions occur during firing:

https://www.jewelry-making-how-to.com/fusing-glass-bubbles.html

Smoky & Reactive Finishes

In some designs, Copper Carbonate can create moody, atmospheric textures that feel almost like underwater scenes or abstract art. These effects are more experimental and can vary depending on how much product is applied and how it reacts during firing.

👉 Explore experimental results here:

https://blog.lidskialf.net/2020/10/18/fused-glass-metal-experiments/

🔥 How to Use Copper Carbonate (Beginner Friendly)

You don’t need complicated techniques to get started.

Simple method:

1. Start with clean glass
2. Lightly sprinkle or dust Copper Carbonate onto the surface
3. Place a clear glass layer on top (this traps the reaction)
4. Fire in your kiln using a full fuse schedule

👉 Tip: A little goes a long way.
Too much can turn dark or muddy, while a light application gives you those beautiful soft bubbles and colours.

💡 Creative Ideas to Try

If you’re wondering where to start, here are a few ideas that work beautifully:

• Bubble pendants and earrings
• Ocean-inspired plates
• Abstract wall art
• Textured bowls
• Layered glass panels with depth

This is where Copper Carbonate really shines. It turns simple designs into something with movement and life.

⚠️ Safety First

As with any powder:

• Wear a mask when handling
• Work in a well-ventilated area
• Avoid inhaling the powder

🛒 Try Copper Carbonate for Your Next Project

Ready to experiment and create something truly unique?

👉 Shop Copper Carbonate

Pair it with clear glass and your favourite colours to start achieving those stunning bubble and colour reactions.

Final Thoughts

Copper Carbonate isn’t about control. It’s about discovery.

Every firing gives you something slightly different, and that’s what makes it exciting. If you’re ready to experiment and push your fused glass further, this is one material worth exploring.