Uploaded January 2026 | Updated September 2026, 2 hours ago

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Rust starts where you can’t see it — inside doors, rockers, quarter panels, frame rails, and body seams. In this video, we’re protecting our 1972 Mach 1 “Lazurus Project” with 3M Cavity Wax, one of the best rust prevention products for hidden areas on classic cars. If you’re restoring or maintaining a classic Mustang (or any vintage vehicle), cavity wax is a must-have step to stop corrosion before it begins.

In this episode we cover:

Why rust forms in hidden cavities (and why paint alone won’t save you)

How to apply 3M Cavity Wax the right way

Best areas to treat: doors, rockers, quarters, frame rails, seams & overlaps

Tips for clean application + long-term protection

What to avoid so you don’t trap moisture or create a mess

If you’re serious about keeping your classic car solid for decades — this is one of the highest ROI rust prevention steps you can do.

Products:
palmettopaints.com
3M Cavity Wax Plus: 08852
Cavity Wax Plus Applicator Wand Kit: 08851

Eastwood Internal Frame Paint
eastwood.com/eastwood-internal-frame-coating-plus-with-nozzle.html?wickedsource=google&wickedid=CjwKCAiA64LLBhBhEiwA-Pxguzz8jFSyNDo6BjTrMjHiP1XSm1uX8aOGbAhhlaiel8RfAjJlUbjI8hoCVFwQAvD_BwE&wickedid=730838757115&wcid=22174107587&wv=4&wickedsource=google&wickedid=CjwKCAiA64LLBhBhEiwA-Pxguzz8jFSyNDo6BjTrMjHiP1XSm1uX8aOGbAhhlaiel8RfAjJlUbjI8hoCVFwQAvD_BwE&creativeid=730838757115&wcid=22174107587&wv=4&gad_source=1&gad_campaignid=22174107587&gbraid=0AAAAAD_t6zEeLadK7u2id7jsrP_CqqUqB&gclid=CjwKCAiA64LLBhBhEiwA-Pxguzz8jFSyNDo6BjTrMjHiP1XSm1uX8aOGbAhhlaiel8RfAjJlUbjI8hoCVFwQAvD_BwE

Driven by Passion, not the YouTube Algorithm.
Episode 726 Autorestomod

Sponsors:
nationalpartsdepot.com
eatondetroitspring.com

Contact:
Jford@autorestomod.com

Insta: @autorestomod
patreon.com/gasolinemedia

#RustPrevention #ClassicCarRestoration #3MCavityWax #MustangMach1 #AutoRestoMod