But if you are a collector for your own personal enjoyment then it just depends on how you feel about worth and crazing.
Ceramics dish crazing and crawling.
It can also occur in pottery some plastics and composition materials such as the face of a composition doll that has not been properly stored.
There are several options to try at home for crazing repair.
Crawling is where the molten glaze withdraws into islands leaving bare clay patches.
Glazes are a very thin coating so most will craze quite easily.
Glaze crawling ask yourself the right questions to figure out the real cause of a glaze crawling issue.
The cause of crazing is the glaze being put under too much tension.
Shivering is the reverse of crazing therefore the remedies are the opposite as well.
In moderate cases there are only a few bare patches of clay in severe cases the glaze forms beads on the clay surface and drips off onto the shelf.
A glaze material that is overmilled can also cause crawling due to the increased amount of surface area that must be made wet for glaze application.
Increase the feldspar especially sodium feldspar or nepheline syenite or other alkaline bearing materials.
Glaze crazing or glaze crackle is a network of lines or cracks in the fired glazed surface.
Decrease the silica in either the body or the glaze 2.
That glass exhibits surface tension and it is important to understand the consequences of that.
The edges of the islands are thickened and smoothly rounded.
Crawling is caused by a high index of surface tension in the melting glaze.
Now if you are a collector and you want to insure your collection then a pr ofessional appraiser will most likely take crazing into account when giving you an insurance value.
Surface tension in ceramics glazes melt to produce a liquid glass.
To correct high shrinkage glaze problems use calcined clay for half the clay component in the recipe.
Crazing frequently precedes fracture in some glassy thermoplastic polymers as it only takes place under tensile stress the plane of the crazing corresponds to the stress direction.
In ceramics glazes melt to produce a liquid glass.
That glass exhibits surface tension and it is important to understand the consequences of that.
Zinc in a glaze can also cause crawling due to its shrinkage rate at high temperatures.
This type of damage is caused by the difference in the contraction rate in the body material of an object compared to the surface layer.
Suspension in ceramics glazes are.
Crawling a ceramic glaze fault that occurs during firing of the ware islands of glaze form as it crawls leaving bare patches of body.
Deal with the problem not the symptoms.
A craze pattern can develop immediately after removal from the kiln or years later.
The tension happens when the glaze contracts more than the clay body does when cooling after being in the kiln.
We lakeside pottery know of cases where the pinging sounds of newly developed crazing lines go for many years.
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Crazing is the phenomenon that produces a network of fine cracks on the surface of a material for example in a glaze layer.
