1 - Keep your artwork away from direct sunlight. Even if your artwork has a protective layer of varnish, it may be cracked or faded on direct exposure to bright sunlight for a long time
2 - Never put anything close to the surface of a canvas. Though objects near your artwork may not seem sharp enough to pierce the canvas, it is surprising that it may cause a scratch or a rip. You need to prevent accidents and store your artworks away from anything that can put pressure against the surface. Also, never arrange artworks on one another. You can separate them by keeping pieces of cardboard between them and avoid damage.
3 - Use a clean and soft rag occasionally to prevent dust buildup on your artworks. Please, do not use any cleaning products or chemicals and water to clean up the artwork!
4 - Hang your artworks away from busy and possibly messy or crowded places. Artworks can accumulate a thin layer of dust and pollutants, airborne grime from cooking oils, particles from smoking, and insect specks in such areas over the period. It is better to have a place for your artworks, which is away from such things, or you should position the artwork in the place where it is somewhat less exposed.
5 - If you plan to transport your artwork, wrap it carefully. Make sure that you put a heavy piece of cardboard on the front and back sides to protect the artwork. The bubble wrap also offers good protection to your artwork. After properly wrapping it, you can place it in a suitable heavy cardboard box. It is better to remember that rough handling can damage both the painting and the frame. Therefore, it should be packed securely.
6 - Try to avoid exposure of your artworks to extreme changes caused by the atmosphere. You should keep the artwork away from excessive dryness, humidity, heat, or cold. All these conditions can cause damage to your artwork like canvas puckering and paint cracking.
7 - Another important thing- never fix the damage of your artwork yourself. Take your artwork to the place from where you have purchased it or find out a qualified conservator. Amateur attempts to repair can drastically reduce the artistic value of your artwork.
8 - Never frame artworks on canvas under glass because canvas needs to breathe! If the artwork is framed under glass, moisture may trap inside the frame. Canvases experience small, subtle shifts over time due to mild atmospheric changes, therefore, it is better to leave them without glasses and allow them to get adjusted with these slight changes.
9 - Do not cover your artwork with plastic for a longer duration. If air is humid, they may start to grow mold. You can use cotton sheets instead to keep dust away.
10 - Check the condition of your artworks periodically. At times, people put up artwork and forget about it until the damage occurs. If the artwork is fading or cracking, a brief peek on a regular basis can prompt you to move it to a better place to avoid more damage.
Artworks on Paper
Paper-based artworks are more vulnerable to damage due to external and internal factors. You can keep a few points in mind for preserving your artworks on paper.
1. Again, keep your artwork far from direct sunlight. If it is exposed to extreme heat or direct sunlight for a long period, the paper becomes brittle and gradually reaches a point where it crumbles to the touch.
2. Frame the artwork under non-glare glass, treated with a coating to protect it from UV rays of sunlight if possible. It not only protects your artwork from direct sunlight but also makes it easier to see the surface because of the non-glare glass.
3. The mat and backing of your frame should be made of acid-free paper and finishing should be done using acid-free tape. It is necessary to avoid any moisture reaching your painting and damaging it.