Rust on your car is annoying, no doubt. But is applying cavity wax over existing rust actually effective, or are you just throwing your money away? Today, we’ll dive deep into this topic and shed light on all the important aspects of applying cavity wax over rust.
Rust on a car undercarriage
Imagine: You discover rust in the cavities of your car. A common problem that many car owners face. But what to do? “Just seal it over,” some might think. But is it really that simple? Not necessarily!
“Rust is like an iceberg,” explains Dr. Ing. Markus Schäfer, automotive expert from Munich. “What you see is often just the tip. Rust often eats its way deeper into the metal unnoticed.”
Applying cavity wax over rust can even be counterproductive. Why? Because it can trap moisture underneath the sealant. The result: The rust can continue to spread unchecked, without you even noticing.
Rust removal before applying cavity wax
So what’s the solution? Before you consider applying cavity wax, the rust must be thoroughly removed. This means: sanding, derusting, and, if necessary, repairing damaged areas. Only then can cavity wax develop its full effect and effectively protect your car from new rust.
Cavity Wax Over Rust: Considering the Costs
Of course, the cost factor also plays a role. Professional rust removal and cavity sealing can cost several hundred euros. Sounds like a lot at first, but consider this: Rust can lead to expensive consequential damage that you can avoid with timely treatment.
Alternative: Rust Converter and Spray Paint Directly on Rust
For light surface rust that hasn’t penetrated deep into the metal, a rust converter can be an alternative. This converts the rust into a stable protective layer. For smaller, non-load-bearing areas, spray paint directly on rust is also an option.
Cavity Wax Over Rust: Conclusion
In summary, applying cavity wax over rust is not recommended. Thoroughly remove the rust beforehand to avoid long-term damage and extend the life of your vehicle.
More Questions About Rust and Cavity Sealing:
- How do I detect rust in cavities?
- What types of cavity wax are there?
- How much does professional cavity sealing cost?
- Can I apply cavity wax myself?
- Another word for rusty?
Do you have further questions or need help with rust control on your vehicle? Contact us! Our automotive experts are here to help you.
