What types of erosion can guardrails withstand?

1. Chemical Corrosion

For instance, the chemical action of dry (anhydrous) gases and non-conductive liquid media (non-electrolytes) on zinc is known as typical chemical corrosion, which poses a significant threat to steel substrates. Guardrail panels can withstand this erosion.

2. Electrochemical Corrosion

For instance, zinc corrodes in the atmosphere. When moisture in the air accumulates in the depressions on the galvanized plate surface, and carbon dioxide, sulfur dioxide, or other corrosive agents dissolve in the water, an electrolyte is formed. This results in the creation of a microbattery.

3. Whether it's chemical corrosion or electrochemical corrosion, galvanizing the steel surface prevents direct contact between the steel and the outside world, reducing corrosion risks, protecting the steel base, and ultimately extending the service life of the guardrail panels.