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Ceramics and Pottery

Questions concerning the crafting of handmade clay objects are found in this section. The use of paint, clay, kilns, and other dimensions of this fascinating branch of artistry are discussed in this category.

1,992 Questions

Is Kate malone dead?

She is to some people but some disagre

How was clay fired?

This site explains the changes, the excerpt is a small explanation:

The item is heated to temperatures up to 1170oC, during which time the clay undergoes

some chemical changes and the silica and feldspar undergo physical changes. The

reactions of the clay can be summarised as follows:

6Al2Si2O5(OH)4 ? 6Al2Si2O7 ? 3Al4Si3O12 ? 2Al6Si2O13

kaolinite metakaolinite silicon spinel mullite

Silica and water (from the crystal lattice) are also expelled during firing, resulting in a

further 5 - 7% volume reduction. This silica mixes with the silica already present and

melts to form a glass. It is this glass, which also includes metallic ions from the

feldspar, that makes the ceramic item non-porous and water-tight.

* The site: http://www.nzic.org.nz/ChemProcesses/inorganic/9C.pdf

How long does it take for clay to harden?

by not leaving the substance in a moist environment and by putting it into a stove and leaving it their for about 2-3 days on a very high temperature.

What type of porcelain are toilets made from?

Toilets are made from clay and water that is heated and molded to form a ceramic porcelain. Ceramic porcelain was chosen because of its characteristics such as sturdiness, cheapness and durability.

Is pingu made by clay?

both actually but its a claymation made with the stop motion technique

What is the difference between bisque and glaze firing?

Bisque means it has been fired once, removing chemically bound water and also allowing the clay body to vitrify. Glaze fire means it has been fired a second time with glaze on the object. Some industrial methods can fire glazeware in one fire, however this is uncommon to the hobby world

Why clay is solid?

i dont know sorry you should look it up on a different website that doesnt suck

What natural materials are needed to make porcelain?

KAOLIN is a key ingredient, which is made from kaolinite plus other materials such as feldspar, ball clay, glass, bone ash, quartz, and alabaster.

English Bone China is typically made from two parts of bone-ash (source of Calcium), one part of kaolin (an alumino-silicate), and one part feldspar (silicate) rock, found in granite. TYPESof Porcelain clays: Hard-paste, Soft-paste, and Bone China. Within these three types there is an almost infinite number of individual recipes/formulas which have different casting, molding, firing and final color and appearance characteristics. For example, 'Ming Porcelain' is made to a very old formula, and produces a top quality translucent Porcelain (clay) suitable for throwing, modelling and very fine detail. One manufacturer of (Chinese) porcelain clay lists his raw materials:

* Montmorillonite * Kaolinite * Quartz (free silica) The chemical analysis of his resulting Porcelain clay is:

Silicon Dioxide (SiO2) 62-70%

Aluminium Oxide (Al2O3) 17-23%

Iron Oxide (Fe2O3) 2.5-5.3%

Calcium Oxide (CaO) + Sodium Oxide (Na2O) 2-3%

1. Typical analysis(a) of another manufacturer's 'White Porcelain' ... Silicon Dioxide 60.9%

Aluminium Oxide 27.4%

Potassium Oxide (K2O) 2.3%

Trace amounts of other key chemicals 1.8%

2. The basic mix for Bone China clay has about 50% calcined Bone Ash, so the volume of the calcium compounds is significant (>23%), but the Silicon and Aluminium content is correspondingly lower. Silicon Dioxide 29%

Aluminium Oxide 16.8%

Calcium Oxide etc 23.0+%

Potassium Oxide 1.34%

Other key chemicals 1.87%

SUMMARY: Although the basic ingredients are the same, there are many different types of porcelains, and many different recipes/mixes. There are even some secret formulas! You can also have a porcelian clay made to your own recipe! ---- Note:

(a) The percentages do not total 100%, but give an indication of the chemical composition.

---- * For more information, see Related links below.

What is the value of an original pre-wade natwest pig?

The piggy banks are valued at a price between $20 and $25. The exact amount will depend upon the version of the bank.

What is the name of pottery decorated with a mixture of clays in contrasting colours probably introduced by Thomas Wedgewood around 1730?

Thomas Wedgwood was the son of the famous potter, Josiah Wedgwood. Though Thomas was known more for his photography than his pottery, items that he made in the 1830s are sold online for around 500 dollars apiece.

How much is a Pottery Barn quilt?

"Depending on type and size, regular prices for a Pottery Barn quilt range from $39.00 to $599.00. During the current sale, you can get the cheapest one for $14.99."

When did the Roman's make their pottery?

This site will give you some background in Roman Pottery, an excerpt:

The Romans followed the Greeks and Etruscans in making their better pottery from a fine red terracotta body. Red clays are the most common clays in central Italy, and the Romans were traditionalists. They also adopted the Greek technique of using a smooth iron rich slip glaze to coat a coarser body. But, unlike the Greeks, the Romans usually preferred the simpler clear oxydised firing. In this firing the iron slip produced a glossy RED finish rather than a glossy BLACK.

* http://www.ceramicstudies.me.uk/histx108.html

What is the slab method in pottery?

The clay is rolled out like pastry into a flat slab. Then these slabs are cut, joined, curved and shaped to form the pot.

Can 20 mule team borax be used in ceramic glazes?

It won't hurt the glaze, might degrade the grout a bit, but be sure to rinse well.

Whats the difference between Italian porcelain and Chinese porcelain tile?

I have just spent two weeks shopping for tile and have discovered Chinese porcelain tile. Many salespersons and tile installers told me there was no difference in Italian and Chinese tile. The fact is that many Italian companies have relocated to China or have subsidiaries there. One salesperson who visited a Chinese tile factory saw his Itlalian tile company representative obviously arranging to have Italian tile made in China. I decided to use Chinese porcelain tile and it will be installed in January. If I have any problems, I will post the results. Both tile installers from whom I got bids had no problem with the tile and in fact thought it was a good quality and an excellent reproduction of marble.

It is cheaper than Italian tile of the same grade, but isn't everything made in China.

It was the Chinese who introduced porcelain to the West many years ago and we still call fine dinnerware China, so after centuries of making porcelain dishes, what could be wrong with floor tile.

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I have discussed the differences between the Italian, Spanish, Turkish and Chinese tiles with a number of salespeople. I am told that the Italians founded the porcelain tile and they are the most expensive. The Italian marble tiles are super expensive and ceramic tiles are not recommended for high traffic areas so the porcelain tile is an excellent choice. There are polished, glazed and matte. be sure to find out the difference and to choose what's best for you. The quality of the Spanish porcelain tiles are supposed to be of similar quality. The Turks got smart and instead of working for the Italians they began producing their own tiles and they are among the world's largest tile makers. The advanatage of tiles from these countries is that they adhere to a strict code of standards . The Turkish porcelain tiles are pof excellent quality and are less expensive that the Italian and Spanish tiles. The Italians also produce tiles in China in order to bring the cost down. These tiles also follow the same codes. The Chinese tiles can be as much as 1/2 the price of even the Turkish tiles but as they are not required to follow a code of standards, you must be careful, as they may not be as good quality.

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I just had some porcelain tile installed in my shower and bathroom floor. I noticed when it chipped it was a different color underneath. Not like my porcelain tile in the kitchen and main bathroom. So when I checked a box of left over tile, it was made in China. After, comparing the 2 tiles, the more expensive ones I bought, to the ones made in China, the color does not go all the way through as does the more expensive porcelain. One of the reasons I liked porcelain tile was the color goes all the way through and if chipped, no one is the wiser. So I hope the cheap China tile holds up well and doesn't chip easily, as it will be quite noticeable. As always, you get what you pay for.

NEW USER:

I just used different tiles for 2 bathrooms in my house.

After shopping for 3 months for tiles and designs and qualities I have learned the following information.

I was looking for spanish porcelain tiles. I fell in love with Porcelanosa (one of the nicest, most unique and well known) They have the thickest and heaviest tile in the market. Their prices vary and if you find the right distributor you will get a great price. Porcelanosa is rather expensive, but their styles are 1 of a kind and their colors and textures cannot be matched or found anywhere else even remotely similar.

Italian porcelain is nothing special. It is nice, and might have some beautiful designs but the spanish tiles are far better and much alike in prices.

I then found an array of Chinese Porcelain. The display looked of spanish quality and honestly after learning so much about all the different kinds I can honestly say the Chinese was way too impressive to pass up on for $1.50 per sq less than Spanish tiles.

The difference:

Spanish tiles: Very thick, and very high quality colors and textures, it looks as if the designs are natural. The cornes and edges of the tile are fine cut and very straight and sharp. Their are no rough edges or chips on a spanish tile. Underneath a spanish reads MADE IN SPAIN.

Chinese tiles: Also thick in depth and pretty designs, but they like creativity in the tile. Unlike the spanish tile you can only create a color and design, not a theme. Spanish tiles look very European and mdoern designed. The Chinese tiles are great for a bathroom with modern furniture but cannot create a theme. They mock a European look but for the few extra $$ you will get European taste and theme with the spanish tiles. The Chinese tiles are a little bit easier to cut and a few percent more delicate and can chip away if not cut professionaly.

For the price difference I would recommend the Chinese tiles without thinking twice.

If you want to spend the extra money then you will appreciate the spanish tiles more. Use Porcelanosa spanish tiles and you will not go wrong.

In my opinion The Chinese tiles are not bad. The Italian tiles are too thin and are just as delicate as Chinese tiles. No difference and the Chinese are less in price.

If you would like to see photos, contact me.

Thanks

R

Where can one find ceramic wall tiles?

Charbhuja Tiles is one of the top associations in India which is known is the Best Tiles Shop in Delhi and We are furthermore know as Best Ceramic Tile Dealers in Delhi tile suppliers, wholesalers in Delhi. In case you are searching for Tiles shop close to me your inquiry will end at our Showroom. Since we have heaps of astounding and excess variety the same.

Understand more: - 09810533367

What are some natural ways of cleaning ceramic tile floors?

Our tile master told us never to use anything but one of the following:

Vinegar and water (little vinegar to a gallon of warm water)

If it gets 'cloudy' and needs a shine?: Clorox and water (again little Clorox to warm water)

Replace water often. Use just water to clean the tiles if your overdo the vinegar or Clorox.

Use a mop that doesn't leave streaks -- even if you have to make one up with just 'tea cloths' or similar. I mop the first time with the mop and then dry with an old tea cloth or clean rags that doesn't shed or streak.