Removing Bondo

[Lowdown3]

So a couple of friends "helped" with a project years ago and when two pieces of culvert didn't fit together just right one had the bright idea of using bondo to "seal" the connection.

It did not "seal" anything. But it cause a frickin mess from hell that is neither watertight nor easy to get rid of.

Is there any tips to removing bondo? I started grinding it with a battery powered grinder but it was making little progress and eating up blades.

[Dennis W]

If it's regular automotive bondo, try a big hammer.

[Bill Foster]

I have used a heat gun and a gasket scraper with good results on a bad bondo job on my vintage MG.

[protus]

Lol.
Dude...it'll hild..it'll its blue..

As said heat and scrape...
Could try a solvent like acetone.....just don't do it near fire lol

[Lowdown3]

What's the gasket scraper Bill mentioned? Napa have that? Are they near the board stretchers? ;)

[protus]

Think painters five way tool. Aka strong Sharp putty knife.
Auto bondo isn't concrete..hammer..solvents..scrape...still pain in the rump

[reysob]

On thick stuff, using a propane torch works great.