Classic Car Rust Prevention: How to Seal the Floor Pan of Your Ride with POR-15

So, you bought a “new to you” project car and want to start the build right. That means tearing out the interior and making sure the floor pans are sealed and rust free. If you find Swiss cheese, check out “How to Fabricate and Install Replacement Floor Pans” on hotrod.com on how to replace your floor pans. If you find minor surface rust and the occasional pinhole, keep reading and we’ll show you everything you need to know about classic car rust prevention.

- Taylor Kempkes

If it’s just surface rust, the most effective removal process is to simply use a grinder with a wire wheel to clean up the old sheet metal. Then, make sure you properly seal the floor pans, otherwise you’ll quickly end up right back where you started.