There aretwo precious propylene-paintings named “The Snow Mountain Athletes” and “The Town of Song and Dance” inthe Xinjiang art center, whose surface has been polluted by the coating, the asphalt and the binder. In this paper, using the basic knowledge of material science and the basis of cultural relics protection standards for the protection guidance, the type of pollutants was determined by the infrared spectrum, and the pollutants’ chemical and physical properties of the acrylic paint are further discussed, which will be able to promote better cleaning the pollutants on the surface of the precious propylene-painting and to provide scientific data and technical support for the protection of the propylene-painting. The reinforcement, repair and collection management of the propylene-painting will be improved.
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