Body Grinder

Jolly Green · August 7th, 2007, 11:36 PM

Hey guys! I'm looking to clean up some shoddy bondo and body work the previous owner had done. To get the bondo off and down to sheetmetal, what tool would you suggest? I'm looking to buy an electric hand grinder, but am not sure about what speeds I should be looking for or what other requirements I should have. I want to save the sheetmetal but clean off the bondo to get a good look at what I need to fix. (The previous owner riveted a patch in for each of the sail panels, then bondo'd over it)
So what pads/abrasives should I use as well? This is my first body repair.

J-(Chicago) · September 13th, 2007, 09:42 PM

Get a large abrasive sanding disc 6 or 7 '' wide.
24 grit should do the trick, it won't clog like paperback sandpaper, and won't bite into your metal too much.

Here is an auction ending in 2 days.

http://cgi.ebay.com/7-24-grit-abrasi...QQcmdZViewItem

Dapapadon · September 13th, 2007, 11:28 PM

Look for a "Sander/Polisher" style. Stay away from a "grinder", the RPM's are too high. I got an electric sander/polisher from harbor freight for around $30, on sale. Only use this type sander for removing bondo & prepping for bondo. Don't sand the entire body with it.

If the area isn't to big and you're going to do 'electric' bodywork anyway just buy a random orbital sander. Go with Porter Cable, Dewalt or Makita (5" model). These work similar to an air D/A sander. It will take a little longer to sand off the bondo, but you can use it for sanding the rest of the body.

Don

August 7th, 2007, 11:36 PM	#1 (permalink)
Jolly Green Registered User Join Date: Jul 2007 Posts: 152	Body Grinder Hey guys! I'm looking to clean up some shoddy bondo and body work the previous owner had done. To get the bondo off and down to sheetmetal, what tool would you suggest? I'm looking to buy an electric hand grinder, but am not sure about what speeds I should be looking for or what other requirements I should have. I want to save the sheetmetal but clean off the bondo to get a good look at what I need to fix. (The previous owner riveted a patch in for each of the sail panels, then bondo'd over it) So what pads/abrasives should I use as well? This is my first body repair.

September 13th, 2007, 09:42 PM	#2 (permalink)
J-(Chicago) Seasoned beater pilot. Join Date: Jan 2007 Location: Chicago Posts: 2,696	Get a large abrasive sanding disc 6 or 7 '' wide. 24 grit should do the trick, it won't clog like paperback sandpaper, and won't bite into your metal too much. Here is an auction ending in 2 days. http://cgi.ebay.com/7-24-grit-abrasi...QQcmdZViewItem __________________ I'd rather have a numbers matching poker hand.

Thread Tools
Show Printable Version Email this Page
Display Modes
Linear Mode Switch to Hybrid Mode Switch to Threaded Mode

September 13th, 2007, 11:28 PM	#3 (permalink)
Dapapadon Registered User Join Date: Jan 2007 Location: Portland, OR Posts: 364	Look for a "Sander/Polisher" style. Stay away from a "grinder", the RPM's are too high. I got an electric sander/polisher from harbor freight for around $30, on sale. Only use this type sander for removing bondo & prepping for bondo. Don't sand the entire body with it. If the area isn't to big and you're going to do 'electric' bodywork anyway just buy a random orbital sander. Go with Porter Cable, Dewalt or Makita (5" model). These work similar to an air D/A sander. It will take a little longer to sand off the bondo, but you can use it for sanding the rest of the body. Don