Corrosion-Resistant Steel, PosMAC
(POSCO Magnesium Aluminum Alloy Coating)

Solar panels must be supported by a structure that can prevent them from breaking or being disassembled. For their maintenance, solar panels require foundations beneath them through which people can gain access. Many of these foundations are made of PosMAC, which is highly resistant to corrosion while also being highly durable. In general, steel has a durability issue because of its vulnerability to corrosion. Corrosion occurs even faster in a place where the content of salt is high in the air, such as the sea. PosMAC features the highest corrosion resistance of all galvanized steels in the world. The coating layer consisting of three elements - magnesium, zinc and aluminum- delivers 5 to 10 times higher corrosion resistance than regular galvanized steel. This allows solar power generators to use the material for a long time without needing to worry about corrosion.

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PosMAC