Luminous paint is a new kind of environmental friendly coatings, it contains phosphor particles can absorb light energy and slowly release in the dark environment, a persistent fluorescence effect. Common luminous paint luminous time for six to eight hours, but some high-performance products shine time can reach more than 10 to 12 hours, making it can meet the application demand of more professional and effective. Long light time of luminous paint can significantly improve the product visibility at night or facilities, extend the period of warning and instructions. For example, in the airport runway, highway export requirements such as high visibility warning labels, construction safety and warning place long time efficient use, can ensure that in a long time to keep clear, to guide the evacuation or alert driving safety. This is of great significance to life and property security. In the architectural and landscape design, long light time of luminous paint also is of great aesthetic value. It can play in a long time lighting effects, create a mysterious dreamy atmosphere. This unique visual experience to be loved by designers, they are widely used in the outer walls of the theme park, hotel, public building decoration, etc. In addition, the long light time of luminous paint also has high economic benefit. Due to the light time is long, coating construction can play a long effect, without frequent replacement, can reduce the maintenance cost and resource consumption. Especially for the remote areas or the inconvenience of transportation facilities, more economical and practical. However, long light time of luminous paint also have certain limits. Light time is too long, will accelerate coating aging, affecting the service life of the product. At the same time, due to the complexity of luminescence mechanism, long light time is high, the cost of the product is not suitable for ordinary application requirements of low cost. In short, long light time of luminous paint can achieve more lasting and professional decoration and security protection. It extended the working efficiency and service life of the product, has the high technology content and economic benefits. But there are also some limitations, mainly embodied in the product life and costs. So, choose the light-emitting long luminous paint also need comprehensive consideration, according to the actual need to select the best product. In the future, as technology advances, light-emitting long luminous paint performance and will constantly improve the service life, believe it will be more broad application prospects. It also provides new opportunities for the development of related industries
