If you maintain a painting properly, it will last a few hundred years with its color does not changed. on the contrary, the color may be cracking, shed and faded. How can we protect the canvas from damage? First of all, the back of the canvas can be thinly coated with two layers of pre-dissolved in the turpentine in the natural beeswax, this can completely prevent the wet air immersion and cause harm; Second, the painting can’t be directly exposed to sunlight, Third, the oil painting storage room must be better in ventilation, pay attention to prevent dust and mildew damage to the canvas, the room needs to maintain a certain range of temperature and humidity; Finally, the oil painting should not avoid the color of the painting, The two pictures on the paste, once the temperature is likely to make the screen together with the resulting oil painting off the screen damage