This is a stainless steel water tank located at a construction site in Africa.

It is made of 304 stainless steel. Due to long-term contact with water, the inner wall of the tank — in such a humid environment — is often the area most prone to rusting.

So how do we solve this problem? After careful consideration, we decided to apply a protective coating. But this isn’t just any regular coating — it must be highly environmentally friendly to avoid contaminating the water quality, and also provide exceptional anti-corrosion performance to withstand Africa’s year-round temperature fluctuations and the corrosive environment caused by chemical reactions between water and metal.

In the end, we chose Mengneng’s solvent-free graphene coating.

This high-performance coating provides more than 15 years of corrosion protection after application, ensuring long-term, stable operation of the water tank.