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Crazing is a spider web pattern of cracks penetrating the glaze. It is caused by tensile stresses greater than the glaze is able to withstand. [1] [2] Common reasons for such stresses are: a mismatch between the thermal expansions of glaze and body; from moisture expansion of the body; and in the case of glazed tiles fixed to a wall, movement of the wall or of the bonding material used to fix ...
The history of ceramic repair is vast and ranges from different methods and methodologies. For example, in 16th century China, people would repair broken ceramics by using pieces from other objects to disguise the patch. A sixteenth-century manuscript describes the process of patching broken ceramics:
This might happen if repair costs are too high, or if the old item poses a health risk. ... In addition, when the bristles reach a certain point of use they can scratch your porcelain. These ...
Lacquerware is a longstanding tradition in Japan [6] [7] and, at some point, kintsugi may have been combined with maki-e as a replacement for other ceramic repair techniques. . While the process is associated with Japanese craftsmen, the technique was also applied to ceramic pieces of other origins including China, Vietnam, and Kor
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Since porcelain, enamel, and fiberglass surfaces are nonporous, they do not provide a good substrate for the new coating to attach to. Therefore, the bathtub surface is prepped with an acid etching or wet sanding, which cleans and creates a porous surface that enables mechanical adhesion .
"In our tests, granite has fended off knife cuts, scratches and heat, making for a highly durable work surface," says Alec Scherma, test engineer at the Good Housekeeping Institute. Sealed granite ...
These deliberate glazing effects are usually known as "crackle", with crackle[d] glaze or "crackle porcelain" being common terms. It is typically distinguished from crazing , which is accidental craquelure arising as a glaze defect , although in some cases, experts have difficulty in deciding whether milder effects are deliberate or not. [ 10 ]
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