Methods for repairing surface corrosion on stainless steel
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I have a stainless steel plate that has suffered surface corrosion due to chloride ions. There are two options: either to carry out acid washing and passivation of the surface, or to paint it. Which option is better?
Corrosion can still occur after pickling and passivation; a Teflon anti-corrosion coating can be applied. The operating temperature and medium must be specified.
You need to provide the operating conditions requirements in order to determine the solution
It is in an outdoor environment, and the main concern is that some medium might leak out and drip onto the stainless steel surface.
If there is a risk of medium leakage, it is advisable to apply a coating to the outer surface; for long-term protection, a coating made of polymer materials can be used, which will provide effective protection for an extended period after just one application.
There is a risk of medium leakage; it is recommended to apply a coating to the outer surface
Why choose stainless steel in areas with high chloride ion levels? ~~If the material is not suitable, it is still recommended to change it~~
Pickling and passivation are not effective; corrosion will still occur. It is recommended to use a coated insulating material for the substrate; as for the type of coating, paint is not an option, as it is likely to peel off in little time. It is recommended to use a polymer coating.
Lined with PTFE sheet or coated with PTFE paint