RUST: The Enemy of a Successful Windshield Replacement
- Cornerstone Auto Glass
- Dec 6, 2024
- 1 min read
Updated: Jul 10

Replacing your windshield correctly is Cornerstone Auto Glass' highest priority. Many different problems can cause a bad windshield installation. One of the worst problems Cornerstone encounters is RUST. Rust is often caused by a bad window installation. When a windshield is replaced, scratches inevitably happen, no matter how careful a technician has been. All urethane manufacturers make primers to cover the scratches so rust won’t start. Some other glass companies do not use these primers because of the time it takes to dry before the urethane can be applied. Cornerstone always applies all primers and adhesion activators required to use with Sika polyurethane products. All Cornerstone Technicians are Auto Glass Safety Council and Sika certified.
When Cornerstone encounters RUST it must be removed before the glass is installed. Minor rust is eliminated on-site with various tools, but if the rust is more extensive you will need to absorb the cost for us to repair the issue. In extreme cases, your vehicle will need to be taken to a body shop for rust removal and paint work. The expense of that repair can cost many thousands, and in some instances, we have seen roofs needing to be replaced because of rust damage.
Using Cornerstone auto glass for all your windshield replacements will help ensure that rust issues won’t occur.




Rust can severely compromise a windshield replacement, affecting both safety and the longevity of the repair. Corrosion around the frame or mounting points can prevent proper sealing, leading to leaks, reduced structural integrity, and potential hazards. For diesel vehicles, rust and engine strain issues make maintenance like DPF cleaning even more critical. A professional Mobile DPF Cleaner ensures soot buildup is safely removed, while mobile DPF cleaning provides convenient on-site service. Trusted platforms like mobiledpfcleaner.co.uk connect car owners with reliable experts. By addressing rust and combining it with proper DPF maintenance, drivers can ensure a successful windshield replacement, maintain vehicle performance, and keep both the interior and engine systems in top condition.