is there an easier way to take off undercoating?

[Joe Meneghin]

Was wondering if anybody had any secrets about taking off undercoating.   I'm using a dewalt grinder with a real aggressive knotted wire attachment.   Any residue that's left along with any rust I get with the sandblaster.  I've tried using a razor scraper and a paint brush with lacquer thinner and nothing seems to be easy or not make a huge mess. 

[Art Woody]

By now you know that grinding, sanding, or sandblasting something soft doesn't work. I'm going to reveal a closely gaurded trick of mine for your eyes only. Everyone else click away. O.K. everyone else gone?
Make the undercoating softer by carefully using a propane torch to heat a patch about 6"x6" by passing the the heat continuously over the area with one hand and rolling the coating off with the other hand using a flexible putty knife. The remaining residue can be removed by rags soaked in solvent. Good luck, hope it helps. Tell whoever you tell not to tell anyone else. Art

[Mike Josephic CLC #3877]

By now you know that grinding, sanding, or sandblasting something soft doesn't work. I'm going to reveal a closely gaurded trick of mine for your eyes only. Everyone else click away. O.K. everyone else gone?
Make the undercoating softer by carefully using a propane torch to heat a patch about 6"x6" by passing the the heat continuously over the area with one hand and rolling the coating off with the other hand using a flexible putty knife. The remaining residue can be removed by rags soaked in solvent. Good luck, hope it helps. Tell whoever you tell not to tell anyone else. Art

Art is right on the money about getting it soft.  I would use a "heat gun" as opposed
to a propane torch.  It's safer and easier.  Work small areas at a time and scrape the
old residue of with a putty knife as it softens.

Once you're done with that part, kerosene on a rag will remove any remaining residue. 
It works better than lacquer thinner for this job and is also much less flammable (safety!!).

Mike

[The Tassie Devil(le)]

..........I'm going to reveal a closely gaurded trick of mine for your eyes only. Everyone else click away. O.K. everyone else gone?
........Tell whoever you tell not to tell anyone else. Art

G'day Mike,

What part of Art's above statement didn't you understand?

Oops, I snuck a look as well.   I'm a bastard!

Bruce.

P.S.  Yes, heating is the only way to go.

[Mike Josephic CLC #3877]

..........I'm going to reveal a closely gaurded trick of mine for your eyes only. Everyone else click away. O.K. everyone else gone?
........Tell whoever you tell not to tell anyone else. Art

G'day Mike,

What part of Art's above statement didn't you understand?

Oops, I snuck a look as well.   I'm a bastard!

Bruce.

P.S.  Yes, heating is the only way to go.

Bruce:

I understand perfectly -- just want our friend to do it the safe way.
A propane torch vs. a heat gun are not the same thing.

Mike