---
product_id: 617049496
title: "Speedball Mid-Fire Glaze, Teal Agate, 16 Ounce Jar for Pottery and Ceramics"
price: "$80"
currency: NZD
in_stock: true
reviews_count: 8
url: https://www.desertcart.nz/products/617049496-speedball-mid-fire-glaze-teal-agate-16-ounce-jar-pottery
store_origin: NZ
region: New Zealand
---

# Artist-formulated with Nancy Sowder Cone 5/6 oxidation firing Lead-free & dinnerware safe Speedball Mid-Fire Glaze, Teal Agate, 16 Ounce Jar for Pottery and Ceramics

**Price:** $80
**Availability:** ✅ In Stock

## Summary

> 🎨 Elevate your ceramics with artist-approved, mid-fire magic—don’t just glaze, create a masterpiece!

## Quick Answers

- **What is this?** Speedball Mid-Fire Glaze, Teal Agate, 16 Ounce Jar for Pottery and Ceramics
- **How much does it cost?** $80 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.nz](https://www.desertcart.nz/products/617049496-speedball-mid-fire-glaze-teal-agate-16-ounce-jar-pottery)

## Best For

- Customers looking for quality international products

## Why This Product

- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Layer & Play:** Use solo or layer multiple colors to create unique, dimensional finishes that stand out in any collection.
- • **Mid-Fire Magic:** Optimized for Cone 5/6 oxidation to deliver stunning mottling and reduction-like glaze effects.
- • **Safe & Stylish:** All colors are lead-free, AP/CL tested, and certified dinnerware safe—perfect for functional art.
- • **Artist-Crafted Excellence:** Formulated alongside acclaimed ceramic artist Nancy Sowder for professional-grade results.
- • **Beginner-Friendly Brilliance:** Easy application and firing process designed for both pros and newcomers to pottery.

## Overview

Speedball Mid-Fire Glaze in Teal Agate is a 16-ounce jar of premium ceramic glaze developed with artist Nancy Sowder. Designed for Cone 5/6 oxidation firing, it produces unique mottling and reduction-like effects. This lead-free, AP/CL tested glaze is dinnerware safe and versatile for single or layered applications, suitable for both professional and beginner potters seeking vibrant, durable finishes.

## Description

A perfect demonstration of the artist-led philosophies shaping Speedball’s new product innovation, Speedball Mid-Fire Glazes were formulated in partnership with ceramic artist, Nancy Sowder. This exceptional line consists of 30 glazes that create magical mottling and reduction-like effects when used at Cone 5/6 oxidation. Eye-catching results are possible when used individually or artists can layer colors for even more unique variation and dimensionality. Friendly in application and firing no matter your experience level! All colors are lead-free and certified dinnerware safe. See color chart for AP/CL certification information.

Review: Love this Hematite Glaze! - This odd little pot that I made became the tester for my new Speedball glazes. I purchased the Hematite (to replace another brand's Mirror that I didn't like), Dragon Stone and the Blackened Copper. I used all three on this pot. I used 3 fairly heavy coats of the Hematite on the lid and am so thrilled with how it turned out. It didn't run all over everything. In fact, it didn't run at all . And, the texture still shines through. Such a fun glaze. The Blackened copper I used on the outside all over (x3) and the inside (x3). I used the Dragon Stone on the top edge of the pot, but I did continue it down over the Blackened Copper. The Dragon Stone looks great on the ledge, but did run heavily over the copper on the sides of the pot. I like the overall effect, it was just a bit unexpected. The inside of this pot is beautiful! The Blackened Copper turned out exactly as the jar promised. Beautiful satin red and black throughout. On the outside, the results were not as dramatic-mostly a pretty brown made shiny because of the Dragon Stone flowing over it. I am testing another piece with the Blackened Copper outside with nothing on top to see how it behaves. While I love the results of the Blackened Copper, my jar is very runny and smells like rotten eggs. I don't mind if it turns out the results are consistent as promised. I can hold my nose while I glaze. This was my first experience with Speedball pottery glazes-I love them so far!
Review: Pretty but takes a little trial and error - On the mug, I painted raspberry fizz and living coral (2 coats each). On the jar, I used 3 coats of Prisma green with a metallic lid handle. These glazes come out super smooth and shiny. Fired to cone 6 on Iceman clay.

## Features

- DEVELOPED WITH ACCLAIMED ARTIST - Formulated in partnership with ceramic artist, Nancy Sowder
- USE AT CONE 5/6 OXIDATION - Create magical mottling and reduction-like effects
- DINNERWARE SAFE - All colors are lead-free and certified dinnerware safe and AP or CL tested
- USE SINGLE COLOR OR LAYER - Eye-catching results with single color application or layer colors for more unique variation and dimensionality
- FOR PROS AND BEGINNERS - Friendly application and firing no matter your experience level

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Best Sellers Rank | #14,310 in Arts, Crafts & Sewing ( See Top 100 in Arts, Crafts & Sewing ) #12 in Ceramics Glazes |
| Customer Reviews | 4.2 out of 5 stars 152 Reviews |

## Images

![Speedball Mid-Fire Glaze, Teal Agate, 16 Ounce Jar for Pottery and Ceramics - Image 1](https://m.media-amazon.com/images/I/61tEWJo6L0L.jpg)
![Speedball Mid-Fire Glaze, Teal Agate, 16 Ounce Jar for Pottery and Ceramics - Image 2](https://m.media-amazon.com/images/I/7115wa5OvhL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Love this Hematite Glaze!
*by J***Y on September 15, 2024*

This odd little pot that I made became the tester for my new Speedball glazes. I purchased the Hematite (to replace another brand's Mirror that I didn't like), Dragon Stone and the Blackened Copper. I used all three on this pot. I used 3 fairly heavy coats of the Hematite on the lid and am so thrilled with how it turned out. It didn't run all over everything. In fact, it didn't run at all . And, the texture still shines through. Such a fun glaze. The Blackened copper I used on the outside all over (x3) and the inside (x3). I used the Dragon Stone on the top edge of the pot, but I did continue it down over the Blackened Copper. The Dragon Stone looks great on the ledge, but did run heavily over the copper on the sides of the pot. I like the overall effect, it was just a bit unexpected. The inside of this pot is beautiful! The Blackened Copper turned out exactly as the jar promised. Beautiful satin red and black throughout. On the outside, the results were not as dramatic-mostly a pretty brown made shiny because of the Dragon Stone flowing over it. I am testing another piece with the Blackened Copper outside with nothing on top to see how it behaves. While I love the results of the Blackened Copper, my jar is very runny and smells like rotten eggs. I don't mind if it turns out the results are consistent as promised. I can hold my nose while I glaze. This was my first experience with Speedball pottery glazes-I love them so far!

### ⭐⭐⭐⭐⭐ Pretty but takes a little trial and error
*by T***H on November 8, 2025*

On the mug, I painted raspberry fizz and living coral (2 coats each). On the jar, I used 3 coats of Prisma green with a metallic lid handle. These glazes come out super smooth and shiny. Fired to cone 6 on Iceman clay.

### ⭐⭐⭐⭐⭐ Pretty in pink
*by B***Y on May 2, 2025*

I really like how the blushing white turned out. It is a pretty, pale pink. I applied three layers and the underglazes I applied in my etchings peeks through. (The flakiness you can see is my mistake in doubling up the underglaze to change the color.). I also really like how the pink tone is not completely matte but also isn’t high gloss. Overall, I’m really happy with the results.

## Frequently Bought Together

- Speedball Mid-Fire Glaze, Teal Agate, 16 Ounce Jar for Pottery and Ceramics
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*Product available on Desertcart New Zealand*
*Store origin: NZ*
*Last updated: 2026-01-25*