Cavity Wax Plus Aerosol Spray, 08852, 18 fl oz, Self-Healing, Chipping | Corrosion Protection; Non-Hardening; Peeling; Cracking

This stuff is great. It's ridiculously expensive, as are the hoses for them, but it's second to none in cavity wax. It goes a long way as well. One of my cans arrived damaged, but after providing a photo it was promptly refunded, no harm no foul.

I ordered this for a friend and he said it was good stuff and he was very happy with it.

3M. Best of the best. Not much more to say.

I researched all rustproofing systems out there and 3M is the best. Bought a brand new Mini van and wanted to make it last. Friend of mine owns a body shop recommended this over the rest. The best part is that it doesn’t stink just smells like car wax for 1week then disappears. Over spray wipes up easy, doesn’t stain black trim. Expensive yes, but ease of use and low initial odor are well worth it. 1 can did all my doors and rocker panels.

Always good product

I ordered this cavity wax to treat the interior surfaces of a boxed truck frame belonging to a gen3 modern Nissan Frontier. The truck has a boxed frame so I wanted to treat the interior surfaces of the frame with something to prevent rust. I also ordered the matching applicator wand set that sprays this stuff 360 degrees in voids. One can of this stuff was almost enough for a single coat for the driver and passenger sides of the frame. Four cans would enough to get the entire interior frame and the body panel voids of the truck. It dries to a waxy finish, like chap stick or lip balm. The extended spray wand reaches far inside the frame for good coverage. This stiff is pricey but worth the cost.

$33 a can I really hope this stuff lasts!

I live in the Northeast, a body man I know said this is the only thing that works to prevent corrosion in the rocker panels and wheel wells of a pickup truck. Been using it for a few years, it appears he was correct.

Excellent produit comme toujours de 3M ! 💯😊👍

Good product