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Advice Pages > Ceramics |
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Includes
pottery, porcelain and stoneware. Ceramics refers to any item made
from clay and fired in a kiln (from the Greek keramos meaning clay).
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| By
Jonathan Horne (Jonathan
Horne Antiques) |
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Cleaning
- Generally
clean with a soft brush. For bad areas gently clean with warm
water (and preferably distilled water) with a small amount of
washing-up liquid.
- Apply
with slightly dampened cloth or use cotton wool or a cotton bud.
Also, an artist's brush should be used to clean intricate and
delicate pieces.
- Wash
one item at a time preferably using a plastic bowl for protection.
- For
delicate pieces, clean only small areas at a time and dry immediately.
- Do
not immerse in hot water, do not use dishwashers, do not scrub
and do not use strong abrasives or detergents. Detergents
may expose and damage repairs if present.
- Note,
unglazed pieces which are absorbent, should not be exposed to
water.
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Repair
- Do
not paint, glue or attempt to repair broken ceramics yourselves.
Consult a professional conservator.
- Treat
all ceramics that have repairs with special care. Heating, even
gentle washing, etc., can easily expose, weaken or stain the more
porous repaired areas.
- Minor
stains can be treated with a solution of hydrogen peroxide with
a few drops of ammonia using a cotton swab.
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Display
- Display
cabinets are generally the most suitable display media for ceramics
(the greatest danger for any ceramic are cracks or breakage)
- Avoid
areas prone to vibration and unstable shelves that can be easily
jarred or "knocked".
- Plates
can be displayed using plate stands but ensure that these are
of the correct size, are robust and stable and sufficient space
is provided between each item on display.
- For
best protection, free standing items items can be placed on a
piece of felt, cut to size to fit the base, but do not glue felt
to the item.
- Wire
wall mounts for plates are not generally recommended, but if you
feel you need to display plates on a wall use plastic coated wall
mounts of the correct size.
- Ceramics
can also be affected by sunlight, rapid variations in temperature
and humidity and smoke so avoid direct sunlight and areas prone
to coal or cigarette smoke.
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Handling
- Always
hold with two hands, support by the base and set down gently.
- Preferable
wear white cotton gloves. Fingers can leave greasy marks that
eventually may also stain.
- Do
not hold cups, vases or pots by their handles. These areas
are often weakened by age.
- Always
be aware of loose pieces such as lids etc. Remove these pieces
and carry separately.
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Storage
- Always
store by wrapping in acid free tissue (newspapers are very acidic).
- If
storing more than one item make sure that they do not touch.
- Always
pack firmly (but not over tightly) to ensure that there is no
movement.
- Clearly
label packed boxes.
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