Keep your artwork out of direct sunlight. Your artwork might have a protective layer of varnish, but it is still possible for it to crack or fade if subjected to bright sunlight for long periods of time.
If preferred, store and display your sculpture in a secure place. This may sound like common sense, but some people insist on displaying their best glass on the shelf under the stairs (or some other shaky place). Keep your pieces safe and secure from rattling and bumping.
Do not submerge the artwork in water or other liquid.
Dust your artworks with a clean, soft rag occasionally to prevent dust buildup. Don't use cleaning products or water!
Hang your artworks away from very busy and possibly messy areas. Over time, artworks can accumulate a thin layer of dust and pollutants, airborne grime from cooking oils, particles from smoking and insect specks. If there is a place to display your piece away from these things, or where it will be somewhat less exposed, try to position it there.
Do not cover artworks with plastic for long periods of time. If there is humidity in the air, they may start to grow mold. Cotton sheets are best for keeping dust away.
Check the condition of your artworks periodically. Many people put up a artwork and forget about it, until they notice that it has been damaged. If the artwork is fading or cracking, a brief peek at it can prompt you to move it to a better place and avoid damaging it further.
If your artwork chips or breaks, take it to a professional for repair. Fixing a piece on your own is not advisable if you wish to retain its value. Try to get all of the pieces together and avoid them scraping together if at all possible. A conservator will be able to tell you if your piece is salvageable, and will let you know what kind of repair costs and results you can expect.
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