View Full Version : Needed, Something To Sand Down Bumpers
06-20-2010, 11:27 AM
ok, my bumpers and side steps have some good surface rust on them, and paint is flaking off pretty bad, as the jeep was in st louis with salt and snow. i was wondering if anyone had a sander or electric grinder i could use to get them all down to metal, and i am gonna re spray them with that do it yourself rhino liner stuff.
623 217 7524
06-20-2010, 01:29 PM
I have a grinder/sander. six02 nine20 2763. main x streets E. Indian School and 44th St.
Got everything you need if you want to come by some evening, live in Chandler though. 480-seven six 0-three 2 one nine
Doc in AZ
06-20-2010, 04:25 PM
i would steer clear of abrasive discs on an angle grinder for removing paint, if you aren't careful you will remove metal and leave flat spots and gouges. i normally use a wire wheel on my angle grinder to remove paint since it won't harm the metal... but with that said, BE VERY CAREFUL with a wire wheel if it catches an edge it will bounce back and get ahold of you. anything that doesn't come off with the wire wheel i would use a pneumatic angled die grinder with a soft wheel and aobut an 80 grit or finer... you will be able to control the speed much better with the air rather than with the electric grinder.
06-20-2010, 04:37 PM
You can use a torch, and go back over everything afterwards with a DA. Only need to get it to about 5-600 degrees if it's wet paint, about 800 if it's powder.
This is exactly how I would do it, steel only. Don't overheat it.
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Doc in AZ
06-20-2010, 05:07 PM
not a bad idea, but just to clarify a bit... get the paint that hot, not the metal. mild steel has a melting point of about 2700* F but will start to get hot and turn red at much lower temps. when preheating alloys to hard weld i have seen 4" x 4" solid steel glowing at only 350* F according to my temp sticks. even though that is not the melting point you have changed the integrity of the metal by getting it that hot and it will have a tendency to bend and warp. but if you use a rosebud tip on an oxy/ace torch you should be able to burn the paint of without over heating the metal... a mapp torch might work too?
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