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These coatings are often permanent and sustainable for utilitarian and decorative purposes. [1] The cleaning, handling, storage, and in general treatment of ceramics is consistent with that of glass because they are made of similar oxygen-rich components, such as silicates. [2]
The binder is a combination of silica sol and water glass. The organic fraction is limited to 5 mass percent similar to dispersion silicate paint allowing for chemical setting and retaining of the silicate specific advantages. The sol silicate paint allows use on non-mineral plaster. [4] For these the bonding occurs chemically and physically.
Missing fragments were replaced with new glazed and fired pieces of pottery and gaps were filled in with plaster. The surface was then painted, sometimes extensively. [1] Materials used included shellac, protein glues, oil paints, gypsum, plaster of Paris, barium sulfate, calcite, clay, kaolin, and water glass (calcium silicate). [3]
Permanent changes in pigment, dry paint out, and create cracks and paint flakes: 65 °F–70 °F: High temperatures soften a painting and allow dirt to stick to surface. Low temperatures cause paintings to become brittle. Canvas: 50 ± 10%: Collects dust easily: max 200 lux: 68 °F ± 2° Collects dust easily [18] Ceramics [19] 50% ± 5%
Conservation-restoration is the practice of cleaning and discovering the original state of an object, investigating the proper treatments and applying those treatments to restore the object to its original state without permanently altering the object, and then preserving the object to prevent further deterioration for generations to come (Caple, p. 5-6). [1]
Most traditional painting on glass, and some on ceramics, uses what is technically enamel, but is often described by terms such as "painted in enamels", reserving "painted enamel" and "enamel" as a term for the whole object for works with a metal base. [33] Variants, and less common techniques are:
Book III (the shortest) describes the variations in technique and materials needed to paint murals. Book IV describes painting on glass and ceramics, and some other auxiliary decorative techniques: gilding , silvering and colouring of metals, dyeing (principally for wood or skins), painting ceramics, painting glass , and making and attaching ...
The technique essentially uses powdered glass mixed with coloured pigments, and is the application of vitreous enamel to pottery; enamelled glass is very similar but on glass. Both these latter two are essentially painting techniques, and have been since they began.
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