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Contribution
According to the article Conservation and Restoration of paintings (2020, September 04), any artwork needs to be well protected and stored, so that it can maintain its original characteristics. The protection of those artworks not only requires professional painting protectors to complete, but non-professional people can also carry out simple or basic painting protection. Simple painting protection does not require a professional painting protector to do it. Many students are now in the painting class at school. For these works, the simplest protection is waterproof protection. There are a lot of paint waterproof sprays that can protect the paint or pigment on the painting from fading. Smoking is not allowed in the room where artworks are prevented, and fireworks are strictly prohibited throughout the room. Try to ensure that you do not look at the painting at the air vent. If the outdoor wind is strong, you need to close the windows in time to avoid damage to the artwork.

There are also great requirements for places to prevent artworks. The warehouses dedicated to storing paintings and calligraphy must maintain a certain temperature and humidity, which can inhibit the growth and reproduction of pests and molds. The growth and reproduction of pests and molds are directly related to the humidity and temperature in the air. Secondly, for the place to store paintings, you should choose a building with good ventilation and a relatively dry building. It is not advisable to choose a relatively humid place such as the bottom and top floors that are prone to moisture. Damp paintings cannot be stored directly, as this will cause mold.

Paintings are easy to be eaten by pests and rats, so there is no food should be left in places where paintings are preserved to avoid attracting insects and rats.

Mural
Mural painting refers to the paintings drawn on the walls and ceilings of buildings or the paintings or patterns drawn on the carrier such as cloth or paper first and then pasted on the wall. This is a very precious cultural heritage and a true record of the historical background at that time. It has important historical, artistic, and scientific value.

For the protection and restoration of murals, people need to understand the mud structure of murals. The mud structure of murals is closely related to the removal and restoration of murals. When formulating a technical plan for mural protection, it is first necessary to understand and study the mud layer structure of the mural. Because the murals are located in a complex geographical and natural environment, they are often threatened by rain, wind, sand, etc., and strong light exposure. Sometimes earthquakes can bring devastating damage to the murals. The murals have experienced hundreds of years of drought, which will cause the murals to continue to age. The structure of the murals will become very fragile if they are damaged. How to adopt modern science and technology and choose restoration materials is a very important problem faced by the professional mural protectors.

Resources：
CARING FOR YOUR PAINTINGS. (n.d.). Retrieved November 27, 2020, from https://www.si.edu/mci/english/learn_more/taking_care/care_painting.html

Conservation and restoration of paintings. (2020, September 04). Retrieved November 27, 2020, from https://en.wikipedia.org/wiki/Conservation_and_restoration_of_paintings

Heidi Wirilander (2012), Preventive Conservation: a Key Method to Ensure Cultural Heritage’s Authenticity and Integrity in Preservation Process. Retrieved November 27, 2020, from https://www.researchgate.net/publication/258895453_Preventive_Conservation_a_Key_Method_to_Ensure_Cultural_Heritage%27s_Authenticity_and_Integrity_in_Preservation_Process

Government of Canada; Canadian Heritage; Canadian Conservation Institute. (2016, December 07). Home. Retrieved November 27, 2020, from https://web.archive.org/web/20170410220201/http://www.canada.pch.gc.ca/eng/1454443139795

MATERIALS INFORMATION and TECHNICAL RESOURCES for ARTISTS- Storage, Exhibition, and Handling (2020). Retrieved November 27,2020, from https://www.artcons.udel.edu/mitra/Documents/Storage-Exhibition-and-Handling-Tips.pdf