Posts Tagged ‘Ceramics’

How to Repair Broken Pottery?

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Broken pottery happens to everyone eventually. After a certain amount of use, someone is bound to drop a mug or plate. Luckily, it is easy to fix ceramics using special products and techniques. Follow the tips below to successfully prepare your broken ceramic pieces.

Fix Broken Pottery with Industrial Strength Adhesive

Often times, people will recommend using a two-part epoxy when fixing ceramics. Though the two-part epoxy works well, it is difficult to maneuver over a small area like the edge of the ceramic crack. It is easier to use an industrial strength adhesive gel.

Industrial strength adhesives, such as the E-6000 brand, can be purchased at local craft or home stores. The adhesive comes in gel form which makes it easier to apply to the ceramic. It is packaged in a small tube with an applicator tip, also making it easy to apply to small spaces.

Before gluing the ceramic, try piecing together the broken parts to make sure they fit snugly. If any small parts are missing, the ceramic piece might not be salvageable. Also make sure that all of the cracked parts are dry and free from dust. Run a dry paint brush along the break line to brush out any excess dust or dirt.

Next, use the applicator tip to apply a light amount of industrial strength adhesive gel to the crack. Remember that the gel will spread when the ceramic pieces are pushed together. Because of this, only apply a thin line of glue that does not cover the entire width.

Carefully but firmly press the two parts together and hold for around ten seconds. Wipe any excess glue away using a dry paper towel. Place the piece in a cool dry place to dry for a day.

Reusing Broken Ceramic Plates and Mugs

Never drink or eat out of broken ceramic dishes. Not only could this weaken the bond of the glue, but it could also be potentially harmful due to swallowing dust or glue chemicals. Instead, find other ways to use ceramics around the house.

Plates can be used to hold candles. Place a large pillar candle on a ceramic plate or fill the plate with river rocks and place a few votive candles amongst the rocks. Smaller pillar candles of varying heights can also be staggered on the plate for an interesting centerpiece.

Mugs can be used as pencil holders in the office. They also make nice planters for herbs or small flowers. Mugs can even be used to hold small hard candy, as long as the candy is wrapped in plastic.

Easily Fix Broken Ceramic Dishes

Though they can’t be used for eating or drinking again, ceramic dishes can serve a decorative purpose in anyone’s house. Luckily broken dishes and pottery can easily be fixed and still provide a variety of uses around the house.

National Center for Khmer Ceramics Revival (NCKCR)

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The NCKCR is a non-profit and non-governmental organization aiming to rediscover and reintroduce Khmer ancestral pottery techniques and support the development of contemporary Khmer ceramic art. In the process, NCKCR creates economic opportunities, helping to decrease poverty in Cambodia.

Serge Rega established NCKCR in Siem Reap-Angkor, renowned for the Angkor temples. Tourists abound, creating substantial incomes, but paradoxically Siem Reap remains one of the poorer provinces of Cambodia. Siem Reap is emerging as a developed city, but geographically, poverty is displaced by about only 2 kilometers.

NCKCR is involved in Vocational training, which helps the poor rural population and will decrease poverty. Training is provided free of charge. Students are given an allowance to compensate for ‘lost’ time, which would otherwise be spent earning a living. Vocational training includes working with clay, but also technical skills, such as building a potter’s wheel, a kiln, tools etc. A student finishing a vocational training session with NCKCR must be able to establish his/her own studio. After training, students may be hired by NCKCR, or NCKCR may provide help to the young potter to install a studio.

Serge Rega says “rural workshops will help the poor and will allow women to express themselves, play a role in society and become participants in an economic activity”. The first rural workshop will be installed in August 2007 in Koh Ker (80 km north-east of Siem Reap) in collaboration with Heritage Watch NGO. A second rural workshop will be installed in May 2008 in Pouk Area, 30 km west of Siem Reap. Rural studios will provide economic assistance for poor peoples but will also play a role in the prevention of looting of Khmer Archaeological sites.

Research on Khmer Antique glazing and techniques – Antique Khmer ceramics are renowned, but the technology was lost during the recent terrible upheavals in Cambodia. NCKCR has sought to rediscover this technology, researching antique Khmer glazing, bisque, kilns, potters language etc. NCKCR wants to soon start the construction of an antique Khmer kiln (Dragon kiln). A first firing is scheduled for December 2007-January 2008. It will be the first time in 500 years such a kiln will be fired in Cambodia – a 10 day and night event. We will make this an international event, in order to facilitate exchange with potters from all around the world. For many years international potters have had exchanges with each other. Khmer potters rarely have the opportunity to travel outside of Cambodia to meet their peers, so this meeting will be held in Cambodia at the NCKCR. The kiln will allow us to fire our reconstituted antique Khmer glaze under the same conditions that it was made in Angkor. Such a kiln is a major tool in the research of antique Khmer techniques.

Revival of contemporary Khmer Ceramic Arts – NCKCR has rediscovered ancestral techniques, which it now teaches. When this knowledge is established, students are encouraged to develop contemporary Khmer ceramic art, with the support of a French volunteer designer. Contemporary Khmer ceramic art consists of stoneware, salt-glazed wares and raku. Different technologies will be used in the future.

Fight against illicit trade of Khmer Antiques – Looting of archaeological evidence is catastrophic for the understanding of our past, our roots. Looting of antiques include two actors: the looter of the archaeological site trying to support his family, and the buyer. If NCKCR can offer the buyer high quality Khmer antique replicas, it can help to avoid the purchase of originals. Looting of archeological sites destroys potential income from tourism in rural areas, while it’s a unsustainable source of income for poorer peoples. Serge says “Installation of rural workshops will offer a chance to get sustainable money incomes for populations”.

The goal of self-financing will ensure the sustainability and independence of NCKCR – NCKCR is not a cursory project – it’s aim is the long-term promotion of Khmer ceramics. This includes establishing a Khmer potter’s library with books translated into Khmer language, workshops, raw material furniture, research etc. In order to reach this goal, NCKCR’s target is to be self-supporting within two years,

Rascal Ware in Canton

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It’s not every day that we are honored with our own museum exhibition. Of course, in accepting the invitation, we have also bought some pressure. After all, we want to show only our best work. But there are five of us here–Junior, Pilcher, Mosley, Hairy and me. While I’m the famous one, the others are artistically and emotionally involved and the question arises, “Can we agree on what IS our best work?” These four guys really bear down, spouting something about pressure making diamonds. I see it more as “under stress, they regress.”

If you watch them closely and ask a few questions, you’ll find that each comes to his love for ceramics from a different place. For Hairy it’s the only honest way he knows to make a living. For Mosley it’s an immersion in magic; he loves fire, chemicals and watching clay thrown on a wheel. The fact that he can’t do the latter makes it all the more desirable. Pilcher is a recovering academic who can’t get past his first step. To him, no process or question is too small to track down. Having made his discovery, he is then compelled to talk about it, and at great length. Unfortunately, he has more words than discoveries, so while I’m running the pottery, he’s running his mouth. By the law of averages, he does come up with some great stuff. But even that’s a black hole because, while he’ll tell you all about it, he won’t tell you how he did it.

Junior is the toughest case. He comes to ceramics as if it’s a religion. He is a born-again, fundamentalist, clay-thumping potter. For him, Rascal Ware is a divine calling that guarantees dignity and meaning with every breath, even if every breath is oxygen depleted. He takes that as a sign to embrace reduction firing. Junior seeks nothing less than the Kingdom of Clay, such as it might be, where he and George Ohr will sit at the right hand of whomever. He shouldn’t hold his breath. It’s rumored that Bernard Leach is still in purgatory for condescending to . . . well, pretty much everyone.

For my part, I am the power behind the thrown-that’s not a typo. Nor is it an exaggeration. By the strength of my personality, imagination and wily fingers, I can play these guys like a piccolo – though they would tell you I beat them like a drum. I remind them that some men would pay for that kind of experience.

What we have produced for the Canton Museum of Art is, of course, a collection of everybody’s strength. There are not that many seashells-score one for Georgette! I call it the Rascal Ware Trifecta: “Twos and Fews,” “Pete and Re-Petes”, and “Inspired and Expired.” You can look at these works as pottery that is born of poetry, prose, biography and our collective human condition. All of the pieces are driven by the Rascal Ware Story, the first five chapters of which are on display. You really should read them in order to understand what you see. Some readers will discover truth and beauty. The truth we build with a pitchfork; the beauty is just a skim coat.

Clay Preparation

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Beginning in the 1950′s, the onggi potters started to adopt a traditional Korean technique of refining clay that had hitherto only been used in the manufacture of high-quality white ware. Thus, the methods described below are essentially the same both for onggi and porcelain ware manufacture. About twenty years ago, some onggi workshops on Kanghwa Island adopted that technique, and its use spread gradually to Kyonggi and South Ch’ungch’ong provinces.

A field approximately 75′ x 75′ is used for the drying of clay. At each corner of the field a round hole approximately eight feet in diameter is dug out. These are settling vats. Today they are sometimes lined with cement. A smaller rectangular vat approximately two by four feet is built tangential to each of the circular vats. Small wooden connecting dykes allow water from each settling vat to flow back into the mixing vat as water is needed. Raised earth levies divide the ground between the mixing and settling vats into drying fields. In addition they serve as dry footpaths from which workers are able to remove the dried chunks of clay.

Refining Procedures

  1. Drying. The raw clay is dried in order to assure that it will slake more quickly in the refining vat. The clay is scooped up with a “three-men shovel” and piled in a sunny place to dry. It is then spread and evened with a wooden rake or hoe. Lumps of clay are broken with the hoe and large stones are picked out. The clay, in the form of soft shale, does not break or slake easily. The dried clay, broken roughly into lumps no larger than apples, is taken to the refining area in a basket or cart. Often an A-frame is used to carry about two hundred pounds to the mixing vats.
  2. Mixing and slaking. The clay is dumped from the cart or A-frame into the mixing vat containing water. After the clay has begun to dissolve in the water, it is stirred with a wooden paddle to which is affixed a handle with a cross bar at the end. The clay is levered up and down using the edge of the mixing vat as a fulcrum. The soft shale does not slake easily and a constant up-and-down motion of the paddle is necessary to partially dissolve the clay and produce a watery slip. The mixing process involves long and repetitive labor; women are assigned to this task since they can be paid less. To the Western observer it seems incredible that so much labor is expended on a process that could be accomplished easily and quickly by an electric blunger.
  3. Screening the clay. The thin slurry thus produced is scooped out with a bucket and poured through a thirty-mesh screen into the second or settling vat. The screening assures that clumps of clay, sand and pebbles do not enter the second vat. When more water is needed to continue the mixing process, that gate of the small dyke is removed. The relatively pure top layer of water from the second vat flows back into the mixing vat.
    By repeated mixing, screening and return water flow the clay in the vat is eventually used up, leaving only stones and sand. These are removed with a shovel; more water and raw clay are added, and the process is begun again. Approximately a week is required to fill the settling tank with thick slurry. When the second vat has been filled with screened clay slip, it is scooped out with buckets and taken to the drying field, using the raised levies as walkways.
  4. Drying the slip to the plastic stage. The ground of the storage area is first covered with a layer of hemp or cotton cloth about 15′ x 15′ in order to prevent impurities from the ground getting into the clay and to facilitate removing it when it dries to a plastic stage. The clay slurry is spread on top of the cloth and the moisture in the clay is evaporated by the sun and wind. When the clay has been dried to a plastic stage, it is scored with a small scythe and the chunks approximately 12″ x 12″ x 6″ are carried to a cart, in which they are transported to the workshop.
  5. Further preparation of the clay. In the workshop the chunks of clay are stacked to form a rectangular mass approximately six feet in length, four feet in width and four feet high. Water is sprinkled on the clay and it is beaten with a long wooden mallet, first with he head, then with the side, by workers mown as saengjilggun. The clay that has been tacked on the workshop floor is then cut into thin slices about 1/8″ in thickness with a scythe-like knife. This part of the second processing is performed by workers known as ‘hardy lads” or “clay slaves.” The main reason for slicing the clay is to homogenize the distribution of soft and dry clay.The “hardy lads” next roll the clay into balls weighing forty or fifty pounds. In some workshops, a sheet of cotton cloth is laid on part of the workshop floor and the balls of clay are put on top of this; in others kaolin is spread directly on the earthen floor

The Onggi Potters of Korea

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Korean pottery today is still largely produced as it was in the past. For a practicing potter it provides a living case study of historical ceramic processes and techniques. Potter’s wheels, kilns, tools and other equipment are still made as they were in years past. Machinery is too expensive to warrant its purchase and maintenance relative to the cost of man power. Glaze materials are still ground from the parent rock materials using ingenious two-man pounders. Within a period of six days, two men working full time can only produce about sixty pounds of pulverized material. No ceramic supply houses offer ready made equipment or processed materials suitable for instant use. Immense quantities of wood must be transported, chopped and split. In the Vi dynasty the proximity of kilns to forests was more important than to kaolin deposits. Today the forests-are seriously depleted; special permits are issued for the purchase and burning of wood. It is an expensive fuel but less so than either oil or propane which are imported products. Natural gas does not exist.

The complexity of the ceramic process is taken for granted, as is the necessity for a division of labor. Chopping wood, mixing and decanting clay, slicing, stacking and firing are assigned to specialists. The authorship of the pottery when it emerges from the kiln is diffuse, since it is the result of the coordinated effort of many hands.

There are four major categories of ceramics produced in Korea today:

  1. Onggi, or earthenware utensils, used for a variety of purposes, but primarily for the storage of pickled vegetables, bean pastes and soy sauces – staple items of the Korean diet.
  2. Reproduced Koryo and Vi dynasty forms, for sale primarily to the Japanese market.
  3. Tea bowls, again for the Japanese market.
  4. Pottery produced within university ceramic departments, reflecting, in varying degrees, exposure to outside influence.

Of the above categories, onggi is of the greatest interest to the Occidental potter. The techniques and methods used are virtually unknown in the West. The Korean potter is able to produce monumental size jars with a speed that seems incredible when witnessed by a Western potter. The methods of coil, paddle and wheel construction are outside the spectrum of ceramic skills in the West, particularly in terms of speed and size.

Because of recent developments in the use of various metals, artificial resins, and the growth of in9ustrial ceramics in Korea there is a danger that the production and use of hand· crafted vessels will die out. Moreover, modern materials and processes may be found to be preferable to onggi ware, which is less durable, heavier and higher in price than mass produced pots. Working against this possibility, however, is the conservative character of Koreans and their firm belief that the taste of kimchi would be adversely affected by storage in anything but onggi ware. On the other hand, the new reforestation laws pose a fundamental danger to the continued firing of onggi kilns. Wood is scarce and expensive and imported oil is more so. There seems to be no solution to the high ecological and financial costs of fuel. Thus, it is difficult to predict the future of onggi pottery in Korea. But, for the present, at least, the Western potter is still able to observe the traditional skills of the Korean potter.

Ceramics show at Rowan gallery

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GLASSBORO Rowan University's High Street Gallery will welcome ceramic exhibits to its space in downtown Glassboro beginning March 24 and continuing through April 3.Ê

A joint opening reception will be held at 7 p.m. on Thursday, March 25.Ê Rowan student ceramist Emiley Ross of Millington will be exhibiting work in her show "The Main Course" along with the ceramic works of Professor Joe Gower's students in a show titled "Rowan University Student Ceramic Exhibition."Ê

"My senior show is focusing on simplicity and functionality," Ross says. "I want viewers to look at my ceramics and pay more attention to the form and shapes, rather than the glaze and colors. My pieces in the show emphasize curving lines and full-figured forms."

Gower's group show is an exhibition of student work from the Rowan University ceramics department. "Rowan University Student Ceramic Exhibition" presents works by Sarah Ginder, Brian Rowan, Jason Trautz, Brenda Kele, Will Ott, Jane Choi, Colleen Bialecki, Scott Middleton and Mike Mergner.

High Street Gallery is a student-run and operated gallery space dedicated to assisting Rowan University's student artists in gaining valuable experience in exhibiting their work. The gallery is located at 11 E. High St., and is open Wednesday through Friday from 3:30 to 7:30 p.m. and Saturday from noon to 4:30 p.m