Why Use Topcoat On High Mast Lights?

The anti-rust process commonly used in street light poles is hot-rolled steel plate + hot/cold galvanizing + plastic spraying. After qualified galvanized spraying treatment, the theoretical life of the light pole is 15-20 years, that is to say, at least 15 years , The surface paint of the street lamp will not fade or rust during the year, the theory is a theory after all, can this effect be achieved in actual use?

After cold/hot galvanizing, the street light pole will hardly rust (except for trachoma during welding), then the only factor that affects the appearance of the street light is the exterior wall paint. After galvanizing, the light poles will be processed and the last anti-corrosion coating process - plastic spraying. The plastic powder used in spraying is outdoor plastic powder. Outdoor plastic powder has the characteristics of high hardness and strong adhesion. After plastic processing, the appearance and anti-corrosion effect of the light pole have been further improved, but after actual use, it is found that the service life of the plastic powder cannot reach 10 years, let alone 15-20 years, take a better one For outdoor high-gloss plastic powder, the surface of the light pole after spraying is bright and smooth, but after three years of outdoor use, the gloss of the surface of the light pole will gradually dim, and then it will start to change color and peel off the paint. This is good plastic powder, poor quality plastic powder will completely change in a year. The disadvantage of outdoor plastic powder is that it has extremely poor aging resistance.

There is a way to prolong the service life of street lamp surface paint, so that it can maintain the original color for a long time without changing color or chalking. If galvanizing is for rust prevention, then plastic spraying is for beauty. If the anti-rust effect is achieved, the aesthetics are good, and then adding a protective film is perfect. Outdoor powder has very poor weather resistance. If it can be encapsulated with super weather-resistant exterior wall paint, it can keep its original color for a long time, but this kind of exterior paint is not difficult to find, it is "fluorocarbon paint", fluorocarbon paint has excellent anti-corrosion properties , maintenance-free, strong adhesion, super-long weather resistance, etc., coating the outer layer of plastic powder with fluorocarbon paint on the light pole can play a very good protective role, so that the gloss of the outer paint on the surface can be maintained for more than ten years not a problem.

The service life of street lamp poles is mostly long-term, and with the correct and high-quality workmanship, it will be done once and for all.