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According to the type of back adhesive of the reflective film, the reflective film can be divided into a heat-sensitive adhesive reflective film, a pressure-sensitive adhesive reflective film and a back-adhesive reflective film. The traditional reflective film used in the field of transportation facilities is mainly pressure-sensitive adhesive. Pressure-sensitive adhesives can be adhered to smooth and clean surfaces without heating, solvents or other preparations. Traffic signs are generally pasted on aluminum or aluminum alloy panels. The viscosity of the heat-sensitive adhesive will only be activated when the material is heated and pressure is applied. Adhesive-free reflective film is usually made of self-supporting materials such as traffic cone reflective tape, temporary roll-up warning signs, and facility pillar reflective tape.
When it comes to the scientific classification method of reflective film, we cannot leave the reflective film standard which has great guiding significance for the application of reflective film. Among the reflective film standards of various countries in the world, China’s reflective film standards, the American Society for Testing and Materials standards, Australia and New Zealand standards, the US Federal Highway Administration’s guidance on retroreflective materials for traffic signs, etc. The materials used to make traffic signs and improve traffic safety have played a positive role in guiding. Down
Let’s introduce them one by one.
Let’s introduce them one by one.
The Chinese reflective film standard is GB/T 18833-2012, "Road Traffic Reflective Film". Reflective film
According to its photometric structure and purpose, it is divided into 7 types.
According to its photometric structure and purpose, it is divided into 7 types.
Class I, usually a lens-embedded glass bead structure, called engineering-grade reflective film, with a service life of 7 years, and can be used for permanent traffic signs and work area facilities.
Class II, usually a lens-embedded glass bead structure, called super-engineering reflective film, with a service life of generally 10 years, and can be used in facilities in the work area where durability of traffic signs is deteriorated.
Class III, the usual sealed capsule glass bead structure, called high-strength reflective film, the service life is generally 10 years, can be used for permanent traffic signs and work area facilities.
Class IV, usually a micro-prism structure, called super-strength reflective film, the service life is generally 10 years, can be used for permanent traffic signs, work area facilities and contour markings.
Class V, usually a micro-prism structure, called a large-angle reflective film, with a service life of generally 10 years, and can be used for permanent traffic signs, work area facilities and contour markings.
Class VI, usually micro-prism structure, with metal coating, and the service life is generally 3 years. It can be used for outline signs and traffic pillars. It can also be used for work area facilities and traffic signs with fewer characters without metal coating.
Class VII, usually a micro-prism structure, flexible material, generally 3 years of service life, can be used for temporary traffic signs and work area facilities.
Class II, usually a lens-embedded glass bead structure, called super-engineering reflective film, with a service life of generally 10 years, and can be used in facilities in the work area where durability of traffic signs is deteriorated.
Class III, the usual sealed capsule glass bead structure, called high-strength reflective film, the service life is generally 10 years, can be used for permanent traffic signs and work area facilities.
Class IV, usually a micro-prism structure, called super-strength reflective film, the service life is generally 10 years, can be used for permanent traffic signs, work area facilities and contour markings.
Class V, usually a micro-prism structure, called a large-angle reflective film, with a service life of generally 10 years, and can be used for permanent traffic signs, work area facilities and contour markings.
Class VI, usually micro-prism structure, with metal coating, and the service life is generally 3 years. It can be used for outline signs and traffic pillars. It can also be used for work area facilities and traffic signs with fewer characters without metal coating.
Class VII, usually a micro-prism structure, flexible material, generally 3 years of service life, can be used for temporary traffic signs and work area facilities.
