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Penguin Pottery’s glazes offer a huge range of effects to choose from: vivid, bright, smooth, glossy, textured, satin, matte; opaque, semi-opaque, semi-translucent, translucent, flowing, non-flowing.
Our low fire glazes are perfect for school projects, classrooms, studios, and potters who do not fire at high temperature. These low fire glazes are the potter’s choice when looking for a wide palette of colors, like celadon, lively reds, deep greens, bright blues.
Our mid fire glazes offer similar ranges but also introduce interesting effects and tonality not available in low fire glazes.
How to Get Great Results with Our Glazes
Mix Well Before Using
Sometimes glaze contents will settle. That's normal! Just like house paints, ceramic glazes need to be fully mixed to ensure smooth consistency. We recommend mixing well for at least 1-2 minutes.
Choose How to Apply
You can apply glazes either by (a) dipping your bisqued piece into the glaze or (b) brushing it on. Our glazes are ready to apply with a brush. If you're looking to dip, we recommend applying a dispersing agent like Darvan.
Remove Dust from Bisque
Removing all dust from your bisque-fired piece is critical to ensure a good outcome. Clean moist sponges are best. Make sure your piece is completely dry before glazing!
Fire Glaze to Correct Cone
Ceramic glazes are classified according to a temperature range ("cone") in three general groups: "low-fire," "mid-fire," and "high-fire." Over-firing will damage the piece/possibly the kiln, and under-firing will just give you ugly results.
A Note on the Art of Glazing Ceramics
One of the fascinating aspects of ceramics is the slight variations we can achieve by using different clay bodies, glaze types and firing methods. It's like vintage film photography - you don't know what it'll look like until you get it out of the kiln! Glazes will react differently (and look different) depending on several factors, including:
- The temperature at which they're fired: even small changes in temperature can lead to different outcomes.
- The clay body on which the glaze is applied: the same glaze will look different if applied to a darker vs. lighter clay.
- The speed at which your kiln reaches the target temperature.
- How much oxygen is in the kiln's atmosphere while firing.
That is why ceramics is an art! We recommend you experiment with different approaches and, most importantly, embrace the uncertainty. You will have a lot of fun seeing different results!
About Penguin Pottery
- Employee Owned and US-Based: our company was founded by and run by potters. We conscientiously manufacture our products in New Hampshire, USA. We love getting our hands dirty while we share our love for the ceramic arts!
- Our Mission & Impact: we founded Penguin Pottery in 2020 with a simple mission: to increase access to the ceramic arts, while doing so in an ecologically-responsible manner. To that end, we donate 1% of our sales to environmental groups working hard to protect our planet for future generations.
We Support Our Pottery Community
We Support Artists
CERF+ is the leading US non-profit organization providing emergency relief funds, educational programs, advocacy, and networking opportunities to safeguard artists' livelihoods nationwide.
Photonal
August 23, 2025
Love this glaze with its depth that shows a hint of gold within the structure of the glaze. Turns brown in contact with clear zinc free glaze (HF-9). Quite runny so provide a dam grove at the bottom of the piece to catch and control the run.
stacy roberts
August 5, 2025
Bought for niece for Christmas l. She is taking pottery classes and it works great. Beautiful color.
Stephanie Roland
July 26, 2025
I'm not one to leave reviews. If I get a product that works, I rate it accordingly. unfortunately, thats not the case here.what I received was a watery pint jar that I thought I had to mix. I've made my own mixes before and I stirred and stirred. at some point, it should mix into a thick-like (cream) consistency. This didn't happen. I followed the limited instructions on the jar, and fired it in the kiln and the coloring came out brown. like 80's paneling brown. No sparkle or pooling. so I mixed it again and even added gum (Arabic) to it and it didn't thicken up. then I realized what I thought was the bottom of the jar...was SOLID MATERIALS OF THE MIX. Again, I've made my own mixes off of Glazey; I have had them on my work shelf for over 6 months and I CAN STILL MIX THEM to make a glaze with a whisk. I mixed this glaze with a whisk, but it didn't work. I grabbed my drill mixer and it sort of worked but remained watery. I mixed it for over an hour and finally got the materials somewhat mixed. I brushed it on and shoved it in the kiln. still came out 80's wood panel brown. I'm sorry but the lack of quality has turned me off from any more purchases from this company. Please, fellow potters, do not try this mix. it'll waste your time and money and worst of all, your work. I'm thankful I tried this on a test piece because it was the worst.
Customer
July 10, 2025
Great quality. Lots of variety depending on how many costs are applied. Would buy this again for sure.
Vicky
June 20, 2025
Fired to come 6, brushed onto this figure I made. It was pretty difficult to mix because everything was at the bottom. Needed to be mixed and added water to help thin for brushing but a lot of chunks wouldn’t dissolve. It looks nice but it’s less bright than the picture
Elle Grey
May 16, 2025
This is my favorite red! Applied thin it pulls mostly a very dark brown, almost black. Thicker areas have a beautiful effect, and it plays nicely used with the mayco crystal effect glazes that I use. Lovely!
DFN
May 16, 2025
This floating blue glaze came out much lighter blue than the pictured sample when applied to my (white) Dover clay body. It didn’t run which was nice. I’m going to try it on a red clay body and see if that is more like the pictured sample.
Abby
March 14, 2025
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Customer
January 29, 2025
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M
January 10, 2025
Tried with cone 5 and tried also with cone 6 just plain light baby blue. Tried with 3 coats and 4 coats same result
alexia bernier
December 15, 2024
Cone 6 porcelain 3 coats
Lobster-gal
December 8, 2024
I've used this glaze on several clay bodies and every time, regardless of thickness of application (1, 2, 3 coats) the glaze simply doesn't liquefy at cone 6, so I'm left with ugly green/brown/black. Yes, I've tested the kiln heat, yes, they reached cone 6 temperatures. (It's a workshop membership, so I've varied the kilns too). I'm tired of wasting my time and effort with this garbage glaze. Will be using Maaco only from now on.
acer4495
November 13, 2024
love the finish on stoneware or textured ware
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