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1-9 A B C D E F Frits G H I J K L M N O P Q R S Stains T U V W X Y Z | Search

The number of different frits in the world can be intimidating, there are thousands. However, unlike stains, their are a wide range of standard formulations that have been made for many years. We are having difficulty finding and classifying them all and it will be done in time.

Obviously, since color and other fired properties are a product of the chemistry, we need to know the chemistry of the frits we use to fully control and understand them. Actually, if we have the chemistry, all other information is secondary. However many frits have specific chemistries that are the product of an intense research effort to produce a specific result using a specific firing method. To anyone other than the engineers to developed the frit, the chemistry will only seem novel. Such a frit can obviously just be used to supply oxides to a glaze as any other material, but it purpose (and likely its greater cost) would be wasted.

Unfortunately most frit companies either do not publish chemistry information at all (some have in the past but have discontinued) or publish approximate chemistries. Frit manufacturers often do reveal chemistries to individual users. Thus old product literature, books, substitution information, xray diffraction or other means of analysing the chemistry, leaked information from technical people at manufacturers and derivation by comparison of approximate chemistries to standard formulations of other producers are the sources for the numbers provided here. Fast-fire and other special purpose frits are a more recent development and the chemistry of these is more closely guarded. If you have any frit data, please contact us so we can share it. As you can see we do not have advertising on this site, we have always striven to share this type of information with a good motive. In future we will be providing better tools to search for frit substitutes and find frits based on their chemistry.

In the curious world of frits, the websites of most frit producers offer surprisingly little information about their products, generally most of the documentation we have comes from users and authors. Some companies do not even have websites or pages that google can find. Many companies change the names of their products over time, this adds to the complexity of maintaining chemistry info. In addition, suppliers often buy frits from a manufacturer, then rename and sell under their own brand (fortunately often the names bear some resemblance to the original so these can be tracked). Other companies number the same frit differently in different countries. Much of the information about specific frits is wrong or outdated, but we can only use what we have until we can convince the manufacturers to be more open. If the chemistry of a frit is not available here, often there will be a link to an equivalent (keep in mind that links are classified so a link to a substitute is not equivalent to a link to a similar one). Our INSIGHT software has a mechanism for naming a frit one way and using the chemistry of another.

Two key frit properties are the thermal expansion and melting behavior (remember that frits do not melt at a specific temperature but over a range). There are different ways of measuring both of these and we are attempting to document these in the testing section. It is generally more practical only to compare the numbers of products from the same manufacturer.

The particle size of frits is not nearly as important as it is for stains. There is a wide range of qualities of frits available (again quality generally refers to consistent particle dynamics and chemistry). The manufacturers using older equipment and processing methods have greater problems maintaining quality. Other companies have modern equipment but have not fully learned the importance of quality, sometimes a supplier will act as an agent (and even blender) between a manufacturer and users to assure quality.

The production of stains can entail the usage of often toxic materials and money can be saved by taking shortcuts it dealing with wastes. Some manufacturers are taking advantage of less stringent environmental and workplace hazard regulations in third world countries to produce stains cheaper but sometimes with greater human cost to the local people and their land.

See Also

Frits

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