Difference Between Hot-Dip Galvanizing And Cold-Dip Galvanizing

Solar street lights are becoming increasingly popular, and their knowledge is becoming increasingly widespread. Many people know that solar street lights convert sunlight into electricity, which is then used to generate power at night. Beyond that, have you ever wondered what the difference is between hot-dip galvanizing and cold-dip galvanizing in solar street lamp posts? Let's explore this with street light pole wholesaler Phoebus Light.

First, we all know that both hot-dip galvanizing and cold-dip galvanizing serve the same purpose of preventing corrosion and rust, effectively protecting the light poles. However, the processes, appearance, and price of hot-dip and cold-dip galvanizing differ, as do the levels of corrosion protection they offer.

The hot-dip galvanizing process is the core advantage of Phoebus street light poles. Our galvanized street light poles feature a zinc coating thickness exceeding 85µm and a 20-year warranty, making them suitable for use in coastal areas. Each finished product undergoes rigorous quality testing and is designed to withstand extreme weather conditions, including strong winds and heavy rain.

These two methods are probably familiar to everyone; they're often mentioned when selling or introducing products. Hot-dip galvanizing, also known as hot-dip galvanizing, is a process where steel components are immersed in molten zinc to obtain a metallic coating. Light poles are typically treated with this anti-corrosion treatment.

While hot-dip galvanizing may not be as aesthetically pleasing as cold-dip galvanizing, its corrosion resistance far exceeds that of cold-dip galvanizing, reaching over ten times that of cold-dip tinning. It also offers a very long service life, boasting 13 years in heavy industrial areas, 50 years in the ocean, 104 years in rural areas, and 30 years in urban areas.

Relatively speaking, hot-dip galvanizing is significantly more expensive than cold-dip galvanizing. Cold-dip galvanizing involves using an electrolytic device to degrease and pickle a solar street lamp post. The post is then placed in a zinc salt solution and connected to the negative terminal of the electrolytic device. A zinc plate is placed opposite the post and connected to the positive terminal. When a power source is applied, the current flows from the positive terminal to the negative terminal, depositing a layer of zinc on the light pole.

Cold-dip galvanizing offers a very elegant appearance, much more refined than hot-dip galvanizing. However, its corrosion resistance is not as good because the coating is thin, typically lasting only 5-70 years. While it's significantly cheaper than hot-dip galvanizing, the quality isn't as high.

If solar street lamp posts are to be installed in coastal areas, consider wind resistance and corrosion resistance. Don't rush into a cheap project and end up with a poor quality finish. Phoebus street light poles undergo rigorous process control, ensuring uniform coating thickness and high industry standards. This ensures they withstand salt spray testing for periods far exceeding typical requirements. They can withstand corrosion-prone environments like coastal areas with high humidity and salt spray, industrial areas, and areas prone to rain and fog. If you have any questions, please feel free to contact us.