Is It Normal for a Car's Brake Discs to Rust?

[MacAmelia]

It is normal for a car's brake discs to rust, as certain environmental factors can lead to rusting. Therefore, it is important to maintain the lubrication of the brake discs. Reasons for brake disc rust: In fact, rust on the wheel hubs does not necessarily mean the hubs themselves are rusting. Instead, it often occurs because the car has been exposed to humid conditions for an extended period. Additionally, prolonged use of the car inevitably leads to minor bumps and scratches on the wheel hub surfaces. When washing the car with certain harsh cleaning agents containing acids or alkalis, these can cause corrosion and rust on the wheel hubs. Methods to deal with rust: For general wheel hub rust, you can first use very fine sandpaper dipped in water to gently sand away the rust spots. After thoroughly cleaning the area, apply a layer of primer to prevent the rust from spreading or worsening. For new scratches, clean the area and directly apply primer. Most vehicles come with a small can of original paint for such repairs. While this may not look perfect, it is effective for small areas and not very noticeable.