Kohiki slip slab bowl

  Рет қаралды 50,703

Good Dirt Classes

Good Dirt Classes

4 жыл бұрын

This cool texture technique can add a nature-inspired surface to your slabs. This video breaks it down step by step and shows an example of how you might use a kohiki textured slab to form a bowl. You’ll need a contrasting color of slip, sodium silicate solution, and a propane torch.

Пікірлер: 71
@ohioskane363
@ohioskane363 3 ай бұрын
I really love the organic look you achieved here. Thanks so much for your instruction.
@bethholt1517
@bethholt1517 9 ай бұрын
This is a great technique. I saw someone who applied the slip in spirals so the pattern looked really cool.thanks much.
@janetroberts7563
@janetroberts7563 8 ай бұрын
Excellent video. Thank you for the clear instructions. I’m excited to try this technique x
@katharinelloyd5293
@katharinelloyd5293 Жыл бұрын
This was great - thanks! I learned to throw/stretch slabs half a century ago (!) I have always loved the naturalness of the rounded edge. I’m imagining a pair of these bowls, or a whole set, with the Kohiki texture alternating from inside to outside. Then my brain takes off with cutting pieces of it, making checkerboards…!
@gooddirtclasses8933
@gooddirtclasses8933 Жыл бұрын
Definitely! Take the idea and run with it. That's what is so cool about everyone posting their techniques in these public forums. Hope it leads to exponential creative growth.
@caroleshepheard5855
@caroleshepheard5855 Жыл бұрын
Excellent directions. Thank you.
@danieladironco4523
@danieladironco4523 2 жыл бұрын
Thank you !! You explain very well, calm and clear... It's a nice nice work !!
@bschuber
@bschuber 4 ай бұрын
awesome video, thank you!
@judywang8393
@judywang8393 Жыл бұрын
So cool. One of the best of this kind of technique. Taking care of the rim is really impressive.
@gooddirtclasses8933
@gooddirtclasses8933 Жыл бұрын
Thanks so much...that's definitely my favorite part of it too. Feels like magic.
@cherylross8812
@cherylross8812 8 күн бұрын
Looks like the surface of a Pan Dulce bun 🙂
@brendasad6231
@brendasad6231 3 жыл бұрын
Thank you for showing this technique, it is very beautiful. 🤩😃👍
@gooddirtclasses8933
@gooddirtclasses8933 2 жыл бұрын
Thanks Brenda, I hope you get good results when you try it.
@leighrobison9388
@leighrobison9388 2 жыл бұрын
I loved this. Thank you sooooo much!
@gooddirtclasses8933
@gooddirtclasses8933 2 жыл бұрын
I'm glad you enjoyed the video. It's one of those techniques that feels a little like magic.
@tksmith3698
@tksmith3698 3 жыл бұрын
Thank you for sharing your knowledge. I am going to try this with coloured slip.
@gooddirtclasses8933
@gooddirtclasses8933 2 жыл бұрын
It works well with colored slip and you can even do it with no slip at all and stain the fissures with an oxide wash after the bisque firing.
@chubbycoco5503
@chubbycoco5503 2 жыл бұрын
This is great! Thank you!
@gooddirtclasses8933
@gooddirtclasses8933 2 жыл бұрын
So glad you enjoyed it. Hope it works well for you.
@thelmamatthews5051
@thelmamatthews5051 9 ай бұрын
Very informative
@carmecarrerastrelliso764
@carmecarrerastrelliso764 10 ай бұрын
Muy bello ,muchas grácias.
@paulohenriquevieiradematto6448
@paulohenriquevieiradematto6448 2 жыл бұрын
muito criativo,parabens
@tammyandkiki
@tammyandkiki Жыл бұрын
Wonderful job of doing this technique! Love it!!! Absolutely gorgeous bowl ❤. Your video is by far my favorite of this info.
@phyllisgriffin5933
@phyllisgriffin5933 6 ай бұрын
Cool!
@aokijima49
@aokijima49 3 ай бұрын
驚きました。アイオワに居られるとは!私はノースキャロライナ州で趣味で陶芸をしております。毎回楽しく拝見しておりました。これからも楽しみにしております。
@graceepstein3113
@graceepstein3113 11 ай бұрын
this looks fun; question: what would happen if you used only the slip and not the s. silicate?
@freedomtrailamerica2981
@freedomtrailamerica2981 3 ай бұрын
It might be a good idea to cut a circle like a quarter inch thick red clay for the foot.Just so it doesn't scratch the surface
@gooddirtclasses8933
@gooddirtclasses8933 3 ай бұрын
That's a great idea. It's also possible to polish the textured surface with wet/dry sandpaper to make it safe for the table surface. Thanks for your comment!
@micheledickey4066
@micheledickey4066 3 жыл бұрын
I realllly want to see the finished piece!!!!!
@gooddirtclasses8933
@gooddirtclasses8933 3 жыл бұрын
Still haven't done the final firing...sorry!
@Yakkhyl
@Yakkhyl 3 жыл бұрын
@@gooddirtclasses8933 how about now
@gooddirtclasses8933
@gooddirtclasses8933 2 жыл бұрын
@@Yakkhyl kzfaq.info/get/bejne/rs5oZa2mntirZ4E.html
@leighrobison9388
@leighrobison9388 2 жыл бұрын
What percentage sodium silicate to H2O?
@gooddirtclasses8933
@gooddirtclasses8933 2 жыл бұрын
@@leighrobison9388 I cut it about 50/50 from the concentration it comes in from the supplier. The stronger the solution, the deeper the cracks seem to penetrate. If you get it too weak, you won't get enough fissuring to really show up. Be careful about getting the solution into your slop bucket as it can contaminate all your reclaim clay and make it behave strangely. Powerful stuff!
@micheledickey4066
@micheledickey4066 3 жыл бұрын
This is very cool!! I can’t believe I’ve never seen how to do this! May I ask, is your white slip just white clay or is the clay actually colored white. Thank you so much for this video.
@gooddirtclasses8933
@gooddirtclasses8933 3 жыл бұрын
I used a white slip over red clay.
@gooddirtclasses8933
@gooddirtclasses8933 3 жыл бұрын
I described the slip more fully in a previous comment.
@LIGIACW
@LIGIACW 7 ай бұрын
Hello, I loved the video! I had a doubt, if you just pass the silicate and wait for it to dry the texture will arise, or necessarily, do you need to heat it with the torch?
@gooddirtclasses8933
@gooddirtclasses8933 7 ай бұрын
I think you want to heat it with the torch so the surface becomes stiff but the underlying clay is still soft and stretchy. You could probably substitute a hairdryer if you're more comfortable with that. Of course, it couldn't hurt to experiment...it's very possible that I am just an impatient potter who likes to play with fire.
@cgallagher413
@cgallagher413 3 жыл бұрын
Would you mention how you made the slip - from pugged clay or is it a casting slip? Is it the same cone as the red clay. Thank you.
@gooddirtclasses8933
@gooddirtclasses8933 3 жыл бұрын
We use a white slip that we mix up from dry ingredients and sieve just as we would a glaze. It's 25% kaolin, 25% clay, and the rest non-plastic ingredients...flint, neph sy, zircopax. Also contains borax. It will fire to cone 10 but works great on earthenware too.
@volstrekt
@volstrekt 3 жыл бұрын
@@gooddirtclasses8933 can you please give the ratio in detail..?
@rosemaried6272
@rosemaried6272 10 ай бұрын
Eine sehr interessante Herangehensweise!😍tolle Oberfläche…ist der Schlicker eingefärbt, oder wurde der aus einem andersfarbigen Ton mit gleichen Eigenschaften gewonnen? Kreativen Gruß!
@ceciliaserafino2092
@ceciliaserafino2092 Жыл бұрын
What is the slip formula?
@micheledickey4066
@micheledickey4066 3 жыл бұрын
I see where you have the slip recipe but can we just use our slip from the clay we use without adding anything to it?
@gooddirtclasses8933
@gooddirtclasses8933 3 жыл бұрын
You could definitely experiment with just using your usual white clay body. A good way to make a slip from it is to save some trimmings and let them dry completely. Then cover with water overnight and pour off excess the next morning. Blend up what's left and you should have a nice smooth slip. If it cracks up too much, you could try making a deflocculated slip by adding sodium silicate to your slip prepared as above drop by drop until it thins in consistency. This way the water content can be lower in a slip that can still be brushed on. Hope this makes sense...
@micheledickey4066
@micheledickey4066 3 жыл бұрын
@@gooddirtclasses8933 it does. Thank you very much
@maritzaguzman8376
@maritzaguzman8376 2 жыл бұрын
Gracias, muy interesante el video. No hablo inglés entonces entiendo que primero puso un engobe y segundo???
@gooddirtclasses8933
@gooddirtclasses8933 2 жыл бұрын
De nada! Primero un engobe blanco y segundo una solución de silicato de sodio (approximamente medio agua y medio silicato de sodio). Es importante por quemar el superficie para secarlo sin secando todo el barro. Lo siento que no puedo hablar mejor en Espanol.
@susiachtermann1395
@susiachtermann1395 5 ай бұрын
Normally, it is said that the slip must be made from the same clay that is used for the object. That's not the case here. Is that not a problem when firing? Doesn't the slip flake off? Do the fireclay proportions (Schamotte in German) have to be the same for both types of clay? How is the result? Thank you
@gooddirtclasses8933
@gooddirtclasses8933 5 ай бұрын
You definitely have to pay attention to the shrinkage rate of the body and the slip. Always test to see how it reacts as the clay dries and also after the firing. The slip I use is mixed up from dry materials and is 50% plastic materials (kaolin and ball clay), and 50% non-plastic (Nepheline syenite, silica, zircopax, borax).
@susiachtermann1395
@susiachtermann1395 5 ай бұрын
@@gooddirtclasses8933 Thank you so much!! 💐 Greetings from Berlin.
@zx5218
@zx5218 3 жыл бұрын
Why don't you make a video showing how to do this technique with a hand-built cylinder. Thanks
@gooddirtclasses8933
@gooddirtclasses8933 3 жыл бұрын
Thanks for the suggestion...I don't do a ton of hand building, but I'll put that project on my to-do list.
@annaedwards7704
@annaedwards7704 Ай бұрын
Not sure why you are using the sodium silicate. The slip will Crack the same without it and you have not wasted scraps At least it does for me. Is there some other benefit I, not aware of? Will use it in the future if there is benefit.
@gooddirtclasses8933
@gooddirtclasses8933 28 күн бұрын
The surface of the slip and even just bare clay will crack much more dramatically and predictably with the sodium silicate. Concentration will impact the depth of the cracks. I cut it one to one with water as it comes from my supplier. I generally don't generate a lot of scraps with this technique or similar pieces created on the wheel, so not a big issue for me. I agree though that if you get a great result without the need for an additional ingredient...go for it!
@sandraparente3962
@sandraparente3962 5 ай бұрын
Why not make the bowl so the pattern is facing up so you can enjoy it?
@gooddirtclasses8933
@gooddirtclasses8933 5 ай бұрын
You could definitely do that if you were planning to glaze over the texture to render it a bit smoother and more functional. I chose to put it on the outside so I could leave it unglazed.
@fernlintner65
@fernlintner65 3 жыл бұрын
Can we see it finished?
@gooddirtclasses8933
@gooddirtclasses8933 2 жыл бұрын
I took some snapshots of the final result. It was fired to cone 10 in reduction with an interior glaze high in both sodium and magnesium. It tends to form awesome little crystals.
@gooddirtclasses8933
@gooddirtclasses8933 2 жыл бұрын
kzfaq.info/get/bejne/rs5oZa2mntirZ4E.html
@AnLe-yg9ln
@AnLe-yg9ln 3 жыл бұрын
How you make white-slip
@gooddirtclasses8933
@gooddirtclasses8933 3 жыл бұрын
We mix up dry ingredients (kaolin, ball clay, flint, nepheline syenite, borax and zircopax) by weight and then add water and sieve through 60 and 80 mesh screens. We usually make it up to a heavy cream consistency for brushing, but we thin it out considerably for dipping.
@volstrekt
@volstrekt 3 жыл бұрын
@@gooddirtclasses8933 do you just thin it with water?
@gooddirtclasses8933
@gooddirtclasses8933 2 жыл бұрын
yes..and run it through the sieve to make sure there are no lumps.
@fruitlessbeast
@fruitlessbeast Жыл бұрын
@VB tu commente trop
@VB-cx9qr
@VB-cx9qr 2 жыл бұрын
Parle trop
@stickermigtigger
@stickermigtigger 2 жыл бұрын
Not showing fired work is caused by laziness or embarrassment. :-)
@gooddirtclasses8933
@gooddirtclasses8933 2 жыл бұрын
Or maybe firing cycle, but here's the link to the finished product....kzfaq.info/get/bejne/rs5oZa2mntirZ4E.html
@stickermigtigger
@stickermigtigger 2 жыл бұрын
@@gooddirtclasses8933 Nice outcome. Thank you! Don't depend on viewers going digging through your uploads trying to find that though, just from watching one video. Disappointment at the end of the first isn't likely to get you a viewer for a second.
@fruitlessbeast
@fruitlessbeast Жыл бұрын
@StickerMT Slagging this fellow is caused by being self righteous prig. I don’t know him but appreciate how he soldiered on with those few missteps. I’m certain the point is to learn something, not be a judgmental jerk for everyone to see.
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