The hot dipped galvanized temporary fence will wash away the zinc layer?

First, we put the Hot dipped galvanized temporary fence into hydrochloric acid until it does not react, about 2 minutes.

After washing off, the Hot dipped galvanized temporary fence is black, which is the result of the reaction of the zinc layer with the acid. After it has been taken out, it must be thoroughly washed with water.

Hot dipped galvanized temporary fence

Otherwise, the hydrochloric acid will be on the Hot dipped galvanized temporary fence for a long time. Corrosion pits will appear on the Hot dipped galvanized temporary fence, which will affect the toughness of the Hot dipped galvanized temporary fence. However, the black material on the Hot dipped galvanized temporary fence is difficult to clean with water.

Because it is itself attached to the top of the Hot dipped galvanized temporary fence. Take a block of rag and wipe it along the Hot dipped galvanized temporary fence. After washing, it will not have any effect and will not speed up the rust. But the premise is that the acid must be washed.