I got a '85 iroc last week that was only in need of some minor body work. I've already done most of the work but the P.O. put bondo over the rear bumper cover . He told me he backed into his truck and he put some bondo over the dent he made. So before i try and take it off I'm wondering whats the best way to get bondo off the bumper cover. any advise is appreciated

 

Sanding is the only way I know of.

 

sanding or a different bumper or hope the PO did a crappy job mixing it and it falls off some day. thats all i got

 

grind it of

 

My favourite is a coarse wire wheel, but a disk grinder works wonders.

 

i love it too but the wire wheel WILL damage the plastic

 

Wasn't paying much attention when i posted that.. I would say new bumper, mainly because the flexible filler isn't cheap...

 

buyin a new bumper cover would probably be easier but i cant find one for cheap anywhere, i have one from a '83 z28 and a '92 rs but neither of them look right on a iroc. I'l try sanding it off later today

 

I know this sounds silly and painstakenly long but you could wetsand it off with 400 grit paper. It will take a while but you would be surprised unless it is like an inch thick. If its really thick, just grind off a little with a grinder and sand off the rest. Even if you cut into the plastic a little, you can fill with some epoxy that is made for these bumpers.

Kevin

 

 

I've been lookin all around for a good bumper cover to replace this one but no luck yet

 

dont give up hope, i personally would hold on until i find another bumper. But since your going to replace it i would start sanding the bondo by hand with 80grit sandpaper just to see if i can be saved. hand sand it so you will have more controll and wont damage the bumper to much.
good luck.

p.s nice car!

 

thanks haha i know the tail lights arent the same, the drivers side was smashed so i took one from my 83 z, same with the top of the spoiler(thats why its white). im gonna see what happens if i sand it down a little to try and smooth it out. I was gonna put on my '92 rs ground efx and rear bumper but id rather keep it original

 

I personally would just take the bumper off flip it over and take a hammer to the inside of it, try to break off as much as possible. then sand the rest with 80grit DA. Then after that is done get a heat gun/ or I guess you could use a torch and heat the bumper up and try to pop it out as much as possible. After you get it out as much as you can get a tube of FLEXIBLE Plastic Parts Repair from 3M, then follow insturctions on the tube and apply. After that sand that entire corner of the bumper down with 180grit and then prime. Wet sand with 600grit and then paint. Personally that's what I would do, should take you less then a weak and if done right it should last and you will never know you had a dent there.

 

92z28camarokid- that sounds like a better idea haha, im gonna have to wait till the weekend to do it tho because this is my every day car and i need to get to school and work, i have an 83 & 92 bumper il just throw one on till im finished workin on the 85 bumper

 

Thats not too bad. Just get an electric sander and go to town.

Kevin

 

Hey sorry its FLEXIBLE PARTS REPAIR (not Rigid)

 

Alright so i had some time today to take the bumper off and start sanding, halfway thru sanded the whole chunk of bondo came off. Now that the dent in the bumper is fully exposed is there anyway i can just pop it out?

 

yes, use a heatgun to loosen up the plastic pup th edent of and cool it of right away with water so that it retains its shape

 

and then use the flexibile parts repair to smooth it out after you get the dent out as much as possible.

 

thanks for the info guys, got the dent out and the holes filled in. Btw it wasnt me that drilled into the bumper, that was the PO's failed attempt to pull out the dent

 

YEA YEA thats what we all say jk.... how did u filled the wholes?? if you didn't put anything on the back to reinforce them they will eventually come back to hunt you, u'll start to see circles and eventually they will crack

 

haha i used 3m flexible parts repair on both the inside and outside of the bumper, now its finally time for me to repaint the car

 

Yeah I would love to see it when its finished.

Kevin

 

 

Not the best pic but you get the idea haha, i'll post more once I find my camera

 

I have never used that 3m Mix, always used another flexible fliller for that application. Looks like it came out well.

 

The 3m stuff worked pretty good, i really didnt need that much of it. I just wanted to fill in the holes that the PO made wen i tried to pull out the dent that was there.

 

bad picture but this is all i have, i just did a quick spray of primer and the closest blue i could find.