Friday, August 19

Causes of Rust Stains and How To Prevent Them

Rust is an orange-brown discoloration that occurs when iron combines with oxygen. It can affect iron alloys such as steel. Iron and steel structures may appear solid, but water molecules can penetrate the metal’s microscopic gaps. This penetration marks the beginning of corrosion. Suppose salt is present, the corrosion will be more rapid. Also, carbon dioxide and sulfur dioxide hasten corrosion. Rust causes stress on the entire structure because the metal expands. Meanwhile, the metal becomes flaky and brittle because it weakens. Several factors cause rust stains, and there are ideal ways to prevent them.


The primary cause of erosion is water vapor and humidity condensation on metal surfaces. Due to advancing technology, processes such as galvanization have top-perceived benefits. Galvanization is one of the most reliable ways of improving the longevity of metals. Electroplating and hot-dip galvanizing are the two most common methods of galvanization. It would be best if you coated the steel or iron object with a zinc layer. That way, water and oxygen molecules will not reach under the metal because the zinc layer will act as a shield. In this criterion, zinc is the sacrificial metal. Also, note that zinc oxidizes better because it is more reactive.

Use of Weathering Steel or Corten

It would benefit you immensely if you tried your best to improve the durability of your steel. In weathering, rust is beneficial. The rust reduces the expense and time you spend maintaining the structure. Also, the rust improves the life of the weathering structures instead of lowering them. Experts create weathering steel using small silicon components, nickel, chromium, phosphorus, and copper. That is why steel sheets can form a rust layer removing the need for paint. When the rust forms, the steel structure becomes quite attractive. In this case, the steel develops an orange-reddish color. The rust shields the weathering steel from further corrosion. Steel is preferable in buildings because it is low maintenance and affordable. Notably, you can refer to weathering steel as corten.

Use of Stainless Steel

Carbon and iron have steel as their alloy. Stainless steel contains approximately 10.5% chromium and smaller portions of other alloys. Therefore, you can enhance its resistance by increasing manganese, titanium, and nickel components. Oxygen is one of the primary causes of corrosion. Stainless steel forms a layer of chromium oxide in contact with oxygen. Shielding the structure against rust is significant. The protective film might damage over time, but there is no need to worry because it reforms again.

Proper Pre-Design

Building designers need to ensure there is free air circulation around the metals. With proper planning, you can reduce corrosion risk by lowering water penetration. Remember to weld metal joints instead of bolting them. It is advisable to consider water drainage holes. Additionally, it will ensure adequate access to the building and enhance regular maintenance.

Regular Maintenance and Using FOZZ

One of the many corrosion causes is failing to maintain the structures regularly. With regular maintenance, you can prevent the process of corrosion. Try to remove any rust on the surface using a razor blade. The rust will not accumulate, and you can save the metal. For maintenance of your pipes, you can contact the best plumber in Norcross, GA. Aside from this, you can also use soap and warm water to remove surface grime. Try different bleaching chemicals like extenders, wetting agents, and phosphoric acid. You can refer to the end product as FOZZ, which is crucial in rust prevention. Many people assume that FOZZ is similar to paint. However, FOZZ is vital because it enhances the adherence of metal to paint.


It entails immersing steel parts in sodium hydroxide, water, and potassium nitrate solution. You can use bluing to prevent rust from small steel materials. As the name suggests, after completing the technique, there is a blue-black appearance. Meanwhile, this method is ideal for manufacturing firearms to enhance corrosion resistance. The method is also imperative in metalwork such as clocks.

If you want to prevent rust stains effectively, you must be aware of its causes. Gases such as sulfur oxides, ammonia, hydrogen oxide, and chlorine also contribute to corrosion. Exposure to hydrogen and oxygen causes corrosion as well. Once you learn what causes rust stains, you will be able to prevent them.