Glaze check please!

Ceramics
#1

I’m ordering a few glazes but want to make sure that they’re allowed. I’m aware that we fire 5/6 but am not sure if the specialty glazes below are makerspace-approved?

  1. https://www.theceramicshop.com/product/16826/chai-matte-shino/

  2. https://www.theceramicshop.com/product/8899/mayco-snowfall-16-oz/

  3. https://www.theceramicshop.com/product/8396/mayco-s-2702-northern-lights-4/

  4. https://www.theceramicshop.com/product/7412/white-matte-6-lb-dry/

  5. https://www.theceramicshop.com/product/24409/satin-rutile-25-lb-dry/

  6. https://www.theceramicshop.com/product/19893/aurora-green-pint/

  7. https://www.theceramicshop.com/product/14450/1116-metallic-mirror/

if anybody has tried a spectrum metallic and an amco metallic please let me know your opinion on the two! :blush:

Thanks!

#2

Hi, We fire glaze to cone 6. Periodically we will do a special firing to 5.

Please review the glazes to ensure they can fire to cone 6.

Make sure you are looking 6 vs. 06, anything with a zero before the # is very different.

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#3

Gotcha! I’m just wondering if the glazes above are makerspace-approved since most are specialty glazes, like the crystal one.

Thanks😊

#4

Hi!

Appreciate you’re asking this ahead of time because the wrong glaze could ruin our community kilns and our members’ pieces.
Here is a link to our ceramics wiki with all things firing, glaze, clay and more:
https://dallasmakerspace.org/wiki/Category:Ceramics

#5

Fyi- amaco metallic glazes are notorious for running. Highly recommend doing vertical and horizontal test tiles in various clay bodies.

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#6

OOOOH good to know. I had no idea

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#7

Ceramics 100 talks all about it. Important to take if you haven’t or need a refresher :grinning:

#8

@coffeebean has a ceramics 100 on the calendar I think.

#9

I don’t remember if it was covered but I took that class about a year pre-pandemic… that detail may have slipped my mind. Maybe I should do a refresher but I don’t want to take up the space if someone else needs it to get started. I only use the community glazes, throw my dollars in the bin so I haven’t really looked into what the different glaze options are outside of what we have

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#10

Thanks for letting me know. I’m going to try the spectrum brand metallic glaze. Hopefully that will work better

#11

The chai matte shino is a pretty nice faux shino formulated for more functional ware but I recommend applying it a little thicker for better color (recommend test tiling it first with your clay body to find the right number of coats between ‘snazzy’ and ‘oh god, too much, too much!’). Typical shinos are notorious for pinholing, crawling and shivering, but this line is targeted to give a look of a cone 10 gas reduction shino glaze without all the trickiness.

The Northern Lights (along with several other frit based “crystal” glazes) tend to perform better at lower temps. They do nicely in the 04 bisque firings but if it is meant for food purposes, you’ll need to make sure you have a clay+inside glaze fit that is food safe fired at those lower temps.

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#12

tiki_potato_front
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Amaco Chai Gloss Shino turns out pretty well, haven’t tried the matte.

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#13

thank you so much for sharing that! That is super helpful :slight_smile:

#14

I did a bunch of testing on Mayco Snowfall. It did great both horizontally & vertically at 04, but had some problems at 6. (“Popping” or spattering off the tile.)

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#15

thanks for sharing! That’s super helpful! I’ve been trying to find info/photos of snowfall at 6 but have had a hard time. If you don’t mind me asking, what does it mean for glaze to pop/spatter off the item?

#16

That means that it’s probably forming bubbles at full temp, and those bubbles are “popping” off of your items. Might mean that you’d want sort of vertical cookie to surround the piece so that you’re not affecting other’s items. Or – just give it a miss. Although… since it’s technically a low-fire glaze (Cone 06 is low-fire), you could fire it in with the bisque firings. We fire to Cone 04, which is somewhat hotter than Cone 06, but since Mayco tells you that it will go to Cone 6, the heat won’t be an issue. What might be an issue for you is that the cone 5/6 clay we all normally use won’t be vitrified at the lower temp, so your ware might be porous. Mind you, low-fire clay is alway somewhat porous.

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#17

thanks for explaining! that helps a lot. I think im just going to stay away from Mayco snowfall until I have more experience

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#18

How many coats of the shino was that?

#19

3 x brushed on coats.

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