240 Undercoat ?repair?

The John V method was to use liquid nitrogen to freeze the undercoat, then one could chip/ scrape/ hammer it off. There was some sorta gun ("death ray") that was sent around the rally anarchy forum members.

Rubberized undercoating is dangerous stuff. Around here, at least, it'll trap water and salt against the body and rust it out. Oil/wax is the only way if you are trying to prevent winter corrosion.

Redwood Chair said:

Wire brush & some spray on undercoating, don't over think it.

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Overthinking is what I do...

It’s soft. I have the axle on jack stands and it’s scraping off when I rotate it.

I have an oscillating tool so I think I’ll use that to scrape it off, brush the rust off, paint, and apply undercoat... POR15 perhaps.

What I have used;
Heat gun
Scrapers/ chisels
Air powered scraper
Elect drill with wire brushes some are with plastic embeded wire
Elbow grease.

Redwood Chair said:

Wire brush & some spray on undercoating, don't over think it.

Click to expand...

^^ You were talking about the axle