How to Mix a Mason Stain to Color a Clay Body for Marble or Agateware

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Some of my advanced independent study kids like to try out marbled clay from time to time. It is rather labor intensive to show each student individually how to create a marbled clay body (as I am teaching another class when they are in with me...) so, I decided to create a video to show them what they need to know to properly and safely mix a mason stain into a slip then marble a clay. PLEASE NOTE the importance of wearing a respirator to avoid the inhalation of powdered stains or any ceramic powder. Look for other videos on how I threw them!
Check out my playlist on working with this type of marbled clay. I show examples of throwing bowls, cups, etc. Also, I plan to add handbuilding ones to it as well eventually! • Marbled Clay or Agateware
This is a video on how to throw a marbled clay bowl: • Throwing a Bowl with C...
This video introduces Mason Stains to color a claybody. I use Laguna B-mix cone 5- which is a white stonware body, and I am staining it with Mason Stain 6300- a lovely blue stain. This is not a particular "Body Color" but works well for my purposes.
I begin by adding slip to a ziplock baggie, then add the powdered mason stain to the slip while wearing a respirator. With the ziplock bag closed, I mix it vigorously. Once mixed, the mixture should be sieved, to properly integrate the stain. Once sieved, I add some bone dry scrap to thicken the slip. Let sit for a day or two, then come back and mash it up and mix it to create a thicker mixture. Mine was still pasty... had I added more bone dry stuff, it probably would have been easier. Then, I added the pasty blue slip to a hunk of clay, to color the whole hunk of clay. After thoroughly incorporated, wedged, and mixed, then I prepared individual pieces for wedging by taking a small hunk of blue, and wedging with a larger hunk of white with just a few turns. Both the red rib and the metal scraper I use in the video are from Mudtools. Mudtools.com
Agateware is a name given to marbled pottery made from two or more different colors of clay, resulting in a swirly or layered appearance. This nickname comes from the stone agate because of the distinctive layers.
Look for my video on how I threw these pieces in another video!
Pardon the clicking sounds in the background... I have my kiln on during the video, and the power is cycling on and off.
I am a high school ceramics teacher and potter. I have been working in clay for over 30 years, and I have been teaching for over 28 years, the past 20 have been specifically teaching high school ceramics. I love what I do! I have my own studio in my home basement, where I work on my personal pottery for my Etsy site; www.etsy.com/shop/KaransPotsA...
I started my RU-vid channel a few years ago, to make videos to help my students if they are absent and miss a demo, or if they would like to explore more advanced techniques independently. I have been amazed to reach such a wider audience than my own students!
For a list of my FAVORITE TOOLS, check out this link to a Googledoc with lots of my favorites on Amazon using my associate links! docs.google.com/document/d/1X...
Please subscribe to my channel if you would like to receive channel updates, or would like to learn more about clay and studio processes!
Please stop by my Etsy shop www.etsy.com/shop/KaransPotsA... to see my personal work!

Опубликовано:

23 сен 2017

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Комментарии : 44

@WhiteStoneCottagePottery 6 месяцев назад

I have to admit I was expecting your hands to look like a Smurf and your work surface to be badly stained too! Your method with the bag and dry clay pieces is brilliant!

@kevinlawson6188 6 лет назад

The way I did this 40 years ago was I mixed porcelain in a blender with cobalt and water, then poured that thick slip out on a slab of porcelain and let it air dry. Then I cut up the slab into pieces and stacked them, crushed the stack into a slab, cut that up and stacked it, and then wedged it. Nobody else was throwing marbleized clay back then...or at least there weren't any You Tube videos about it. I also used rutile for a yellowish color, chromium and copper for green, and iron for a dark brown.

@KaransPotsAndGlass 6 лет назад

That's awesome, Kevin! I've used the copper several times personally... but with my students, I just am trying to avoid some of those chemicals... and sticking with the Mason Stains which seem a bit safer. I've always wanted to do some slab work with stained clay, but just have never had time to get around to it! Great tips, thank you! :)

@claymazingartworks5682 6 лет назад

I am now going through my entire scrap bag to retrieve all of my large unsuccessful pieces! What a great idea to add it to your slip. Girl! You are a wealth of knowledge thank you for your expertise :-) . I wasn't quite sure how much Mason stain to add to my clay, now I see why I need to add more.

@KaransPotsAndGlass 6 лет назад

Awwww! Thanks, Christina! I'm glad you find it helpful! :) I have a few more videos I'll be finishing in the next few weeks to show how I throw and trim the marbled pieces! :) Keep your eyes open for them! :)

@erinbellavista3278 2 года назад

This is perfect, exactly the info I was looking for!!! I'm so happy! 💝‼

@e10001110101 6 лет назад

Just caught ur video and got nostalgic when I saw your were a ceramics teacher for MHS...although the MHS I know is in Central coast CA. I loved my ceramics teacher-she was such an inspiration to me, thus the nostalgia.

@junkdna9093 5 лет назад

guys those things it's really dangerous u should make sure and wearing a mask when add the color , thanks the color turned so beautiful , greetings from saudi arabia .

@KaransPotsAndGlass 5 лет назад

Yep- that's why I explain wearing a respirator in the first two minutes of the video, and I have it in the video description! :)

@judydell6224 3 года назад

Wow. I want to try this! Love the color too.

@norakaven3705 5 лет назад

Oh thank you for this video!!!

@pubali909 6 лет назад

Thank you so much for this video... it will surely help me..😍😍

@KaransPotsAndGlass 6 лет назад

You're welcome! :)

@screamingmimi90 5 лет назад

I’m starting ceramics this Monday, and I’m really excited to prep my brain with all these techniques. Ideas, on top of ideas, on top of knowledge... Learning has become a hobby of mine. Thank you for making these videos! I’m sure I’ll watch them more than once.❤️

@analuciagarcia8393 6 лет назад

Thank you!!!

@yiyimendoza3284 6 лет назад

Thank you for this great tutorial. You explain everything so thoroughly and I really appreciate that. I've recently learned how to work with colored clays and absolutely love it. Are you concerned with wedging and touching the stain with your bare hands? I'm not judging, just really curious about your perspective on that. I was taught to use gloves but it makes the process very clumsy if the gloves don't fit well. I can incorporate it much better with bare hands but wonder about the absorption of the fine pigment through the skin and it's long term effects. Thank you!

@KaransPotsAndGlass 6 лет назад

It is a great question about touching the stained clay with bare hands. No, I don't worry as my impression of the Mason Stains is that they are a bit more stable, without the more dangerous compounds of straight colorants like chromium oxide, cobalt carbonate, etc. (With those, I do like to wear gloves) Admittedly, I really do need to read up more on them, but my gut has me feeling that there is much less risk. They are the primary colorant in underglazes, and I feel comfortable using those with young kids... I rather liken it to getting underglaze on my hands...(?) One good idea- which I didn't know about it at the time of the video- is to use a shielding lotion prior to working with the clay- I like Gloves in a Bottle... it helps to prevent your skin from absorbing stuff- without the interference or bulk of gloves!

@yiyimendoza3284 6 лет назад

Yes I agree that it seems safer than working directly with oxides. Thank you for the response. Gloves in a Bottle is a great recommendation. Thank you!

@lauriegagnon1486 3 года назад

Can you use this clay combo for slab building?

@goneviral6037 3 года назад

At 4:00 if you pick whole container and seave up and tap it lightly back down most would go right through that screen!

@KaransPotsAndGlass 3 года назад

Mike- yes, that works often! Sometimes my slip is too thick for that trick to work! :)

@moea3413 2 года назад

does the stained part of the clay stick to the kiln shelf when firing it ?? thank you

@kmiklaszewski 6 лет назад

Thank you for doing this series of videos with the mixed stained marbled Clay. I had requested you to do this in one of your previous videos with the marbled saltshaker video. I wish I had you close by to take lessons from. I am a beginner just starting out and I'm not really able to take lessons at a clay studio because it's a little expensive for me right now so I watch a lot of videos. I have the basics of what I need but I don't have a place to plug in the kiln that I have because I live in an apartment complex. I have been trying to figure out a way or a place to fire anything I make. I have thought of other studios but they charge too much money and I even thought of offering someone else who doesn't own their own Kiln, but would like to use mine and arrange to get an outlet and hook it up at their place. I haven't had any luck.

@KaransPotsAndGlass 6 лет назад

You're welcome, Kathy! Yes, I had already started filming some of them when we messaged earlier about the shakers! ;) Trying to find a place to fire is always an adventure. You could put some inquiries out with local potters too, to see if they'd like to earn a bit of extra money for firing pieces! I know some people that fire at studio spaces, and they charge for the square inch of shelf space... and they are super-strategic for the loading of the kilns to fit in as much as they possibly can... making baby pieces to fill in gaps between others! That's amazing that you have a kiln already! My first one was in a shed in my backyard... had to run electric to it... and it was mighty cold in the winter! Good luck to you! :)

@kmiklaszewski 6 лет назад

I also had a question and was wondering if u could do a video about how to deal with and wash any clothes and towels from working in your home studio that get muddy from throwing and everything

@sandys3767 6 лет назад

Hi. Do you think it would be ok to use one of those old-fashioned sifters (for baking) to get the lumps out?

@KaransPotsAndGlass 6 лет назад

Hi Sandy- no- sifters are just too big. The particulates I was breaking up are much smaller! There are wonderful test sieves that are not expensive, and could do the job. (Talisman sieves makes great little test sieves... that's what I used.) Now, you could try it without, but I have done it in the past, and have found I do have intense particles within the clay body that clearly just didn't get well mixed in. Maybe if you had an old blender, magic bullet or something like that it may mix it in better? (I didn't have one at home!) I do use a blender in my school studio, but I sieve it too! :)

@nathanbarnard8443 6 лет назад

I'm using a white grogged earthenware body for my work, I'm concerned the grogg won't make it through the sieve. How much of a problem have you found the specks to be? I want to use a black stain on the clay so I'm wondering if you think it'll be massively noticeable?

@KaransPotsAndGlass 6 лет назад

Hi Nathan- mine is grogged as well- and I don't find them to be a problem! :)

@nathanbarnard8443 6 лет назад

Fantastic! Thank you :)