As regular followers may know is I’ve addressed the reconstitution of clay several times in this blog. So why revisit this subject again and why so soon? One reason is I also use my blog as a self reference for me so I can have a way to keep track of best studio practices. The other reason to address it so soon was a wonderful video on You Tube being released in the past week or so, It was released by ONDO STUDIO . It is an ASMR video of how they use clay trimmings and recycle their clay. I highly recommend you subscribe to their channel for some great content.
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Since getting a pug mill I think my studio practices will be undergoing a great del of changes. I found that saving throwing scraps in a bucket of water and the removing the excess water and putting the clay on canvas or a plaster bat and let it dry and then knead the clay was not very practical for me. I would always find various lumps of clay that was not of a very smooth consistence and could be difficult to throw. Really for me this process works best when to use the clay slurry to mix with your dry clay and use a clay mixer or a mixing pug mill to mix the clay.
The method I prefers based on a method that John Britt has used in a you tube video. (I’ll link to his video below) My method is basically to methods to accomplish the same result. I take clay that that has gotten pretty stiff (beyond leather hard) and I take a cheese grater and grate the clay. (I usually take the next to the smallest size. But any size will work) I wait till the clay is completely dried and add to a couple of gallons of water that has a teaspoon of darvan 7 in it (sodium Silicate will work as well) . Then mix with a jiffy mixer until smooth and the consistency you want. I go for a thickness that will pour with some assistance (If that Makes sense). My other method is to take completely dry clay and break into fairly small pieces then I take a big rolling pin and crush it even finer into dust or very fine pieces. Then I follow the procedure above. The liquid clay is then poured in a ReCycle Slab from The Ceramic Shop.
I let the clay dry and flip over as needed. The results you get will depend on your studio and conditions inside or outside where you recycle your clay.
I will explain in a future blog how I use this recycle clay with my pugmill and how I may use this in practice in the future.
John Britt Recycling Clay on You Tube
Making the decision to purchase a pug mill is one of the hardiest yet easy decisions to make it really boils down to if you need to deair or mix dry clay. Then a mixer model with a deairing vacuum may be best for you. I always believe stingy person pays most and you should always get the best you can afford.
There is the reality of what are your studios practices for me the best solution for how I work was the Nidec-Shimpo. NRA-04S Model. The S stands for stainless steel. Most pug mills come with either aluminum augers or stainless steel augers both work equally as well but the stainless steel will not pit from porcelain as aluminum sometimes will. Remember you may not use porcelain now but a pug mill with last for ever if taken care of and whose to say in 15 years what your clay body will be.
I plan on still reconstitute my clay as mentioned in a previous blog. (I’ll repost and update in next blog.) The NRA-04S comes with a double auger as opposed to the single auger that others have with a 1/2 HP motor that can pug 800 lbs. of clay in an hour, so it has the muscle to do the job. It also gives me the opportunity to run clay though twice for any concern with mixing. I have seen this model in use and it seem to dear as well as my wedging ever could. It’s also more than a thousand dollars less expensive then a deairing/mixing model.
I purchased mine from The Ceramic Shop . The reasons being:
A: I get almost all my supplies from them both because of price and their customer service can’t be beat.
B: There is free shipping on most major equipment (most clay companies do offer this as the manufactures ship from the factory.
C: they give you the option for 40 dollars extra they ship with a truck with a lift gate for studios with out a loading dock or on residential street where a 18 wheeler may not fit
Here are the links to the manufacturers and the pug mill page for The Ceramic Shop.
The Ceramic Shop Pug Mill Page
Nidec-Shimpo Pug Mills
Peter Pugger Pug Mills
Bailey Pug Mills