Acid-Rain Umbrella / Umbrella

Acid rain caused by Industrial pollution is not only a threat to human health and safety and more serious damage to the natural environment. We draw the pattern of the surface of the umbrella with a special coating. This kind of coating has no color in peacetime. When the acid rain on top, the coating will produce color effects by acid rain to suggest the presence of acid rain and pollution sources. Then the coating will restored to the original diaphaneity when the water on the surface washed or dried.