What is the best way to remove undercoating?

[rallye455]

I'm getting ready to work on the underside of my 72 442, What is the best way to remove undercoating?

[rjsjea]

My car was completely torn down, had it sand blasted. Turned out very nice.....took all the rust, undercoating and grime away.

[jy211]

just had the bottom of my 55' chevy done. Took away 99.3% of the grime and undercoating...

[Denvervet]

I had to use a propane torch to heat it up a bit then it comes off like butter. Then I used paint thinner in a spray bottle ( after and separate from torching ) let it soak then wipe away with lots of disposable towels...the blue or paper ones. It is a lot of work but turns out well. My media blaster said the media won't remove undercoat.

[gearheads78]

Originally Posted by Denvervet

I had to use a propane torch to heat it up a bit then it comes off like butter. Then I used paint thinner in a spray bottle ( after and separate from torching ) let it soak then wipe away with lots of disposable towels...the blue or paper ones. It is a lot of work but turns out well. My media blaster said the media won't remove undercoat.

Heat gun and a wood paint stir stick to keep from gouging the metal for 98% of it. Wax/gease remover and a brush to aggitate the remaining residue.

[rallye455]

I was looking for another method other than sandblasting. I just finished sandblasting the frame and will never do anything that big again, the mess is just too big.

[BBC69Camaro]

Angle grinder with a wheel cup wire brush works pretty quick, just messy as all get up when you are underneath it.

[monza]

Have some one else do it, is the best way!

Tiger torch, scraper, welding gloves and beer is next best IMO.

[rallye455]

Thanks for the replies guys....looks like another messy project.

[Jay Hilliard]

Originally Posted by BBC69Camaro

Angle grinder with a wheel cup wire brush works pretty quick, just messy as all get up when you are underneath it.

This is the way I did. It gets you dirty, but you can do it in your shop when you have time and saves $$ for other car stuff.