1. Reflective film can be divided into glass marble type and micro prism type according to the basic principle of its retroreflective surface.
2. Reflective film can be divided into the following 7 types according to its brightness characteristics, structure and main use:
a) Class I-generally prism-embedded glass marble structure, called engineering project-grade reflective film, with a service life of five to seven years, and can be used for permanent traffic signs and operating area equipment;
b) Type II--Generally, it is a mirror-embedded glass marble structure, which is called a super-engineering project-grade reflective film, and its service life is generally five to seven years. It can be used for permanent traffic signs and equipment in work areas;
c) Type Ⅲ-generally a sealed capsule glass marble structure, called high-strength grade reflective film, with a service life of ten years in general, and can be used for permanent traffic signs and work area equipment;
d) Type IV-generally micro-prism structure, called strong-grade reflective film, with a service life of ten years in general, and can be used for permanent traffic signs, work area equipment and delineation marks;
e) Type Ⅴ-generally micro-prism structure, called large viewing angle reflective film, with a service life of ten years, and can be used for permanent traffic signs, work area equipment and delineation marks;
f) Type Ⅵ-generally micro-prism structure with metal coating, generally three-year service life, can be used for delineation marks and traffic columns, and can also be used without metal coating.
g) Type VII-generally micro-prism structure, soft material, service life generally three years, can be used for temporary traffic signs and work area equipment.
Generally, which type of reflective film to use is determined according to the road grade, and the ratio can also be compared with the national standard.
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