One、Is the rust on fireproof windows normal?
The window frame profiles for fire-resistant windows can be made from materials such as PVC, stainless steel, aluminum alloy, and wood. PVC, stainless steel, and wood window frames are resistant to corrosion. However, aluminum alloy fire-resistant windows may experience surface oxidation and corrosion over time. This is a normal phenomenon. After oxidation, a dense layer of protective aluminum oxide is formed on the surface, which prevents further reaction between the aluminum and oxygen. Therefore, compared to iron, aluminum oxide formation is less severe.
In addition to aluminum alloy window frames and sashes, which may corrode, some iron components are also prone to rust. Therefore, it is important to regularly maintain fire-resistant doors to effectively prevent corrosion.
Two. How to handle rust on fire-resistant windows.
1、Window frames and sashes are rusting.
If the aluminum alloy fireproof window frames and sashes are rusted, we first need to clean them thoroughly. After cleaning, we can use an alkaline solution to remove the rust. Alternatively, we can also use an acidic solution to remove the rust after cleaning. After acid treatment, we can directly apply coloring or anodizing.
2、Parts corroding
If the metal components of fire-resistant windows rust, we first need to remove them. Then, use sandpaper to clean the surface. Next, immerse the cleaned components in a 15% acetic acid solution for a short time. After removing them, rinse thoroughly with clean water. Finally, apply a layer of anti-rust varnish.