Rusting Rear Bumper

[ToughCountry]

Hey guys i got some well alot of rust starting to eat away at my rerar bumper...I got it off today and started sanding it down and down and down but basically all i did was thake some rust off and smooth out the rest of it. Some spots i got the metal to show but not much to brag about. I used all diffrent levels of courseness (dont think thats a word) but u know what i mean. I was thinking of taking a grinder to it...What do u think of that idea?
Other then that im out of ideas. Also my second problem is im obviously goin to have some rust left or alot, but my goal was to make it look decent and if its smoothed out instead of all bumpy and torn looking i guess that will do. But what can i spray on the bumper to hold the rust off for awhile like POR15 but i cant find that in any local places so i need something i can just pick up and spray on. Then after that should i spray some flat black on it then clear coat or black primer?

Any thoughts would help

Thanx
Jay

 

[Deak]

Is this a painted bumper? If it is find a shop that does media blasting. I can't imagine they would charge a lot less than 50 bucks. They will either coat it or put it in primer then you can fill up the rust spots and sand them smooth. Primer it and put base and clear on it. Should be good or better than new.

Deak

 

[Private_Joker]

This may not work - I have the same issue.
I thought of sanding well and then filling any 'dimples' with bondo, then sanding that down as smooth as possible and then just primer & paint.

Would that not work?

I would oil the heck out of the back of bumper also

PJ

 

[DeRocha]

If $ is an issue then sand it the best you can and just prime and paint with Rustoleum's heavy primer followed by a topcoat. This is relatively cheap and will give ok results. POR -15 is many times better, but you will need to order it on-line (and its not cheap). Also be aware the bumper is probably rusting even more from the inside, so I would check it out. If the rust was too bad I would pickup an cool aftermarket tube bumper...

 

[Private_Joker]

To follow up...

I just did my rear bumper "now" (this afternoon).

After sanding, I used some bondo in areas that 'dimpled' a bit from rust.
Just smooth on a thin layer - And then just sanded it down nice and sooth..

It worked perfectly. Rust dimples are covered just fine! You can't tell they were there at all.

Front bumper tomorrow morning

If you don't want to $ a new bumper, try a bit of bondo and write back what you think!!

P.S. I hope you are using a drill with a rust-remover bit or something like that and not doing the bumper by hand!... that would truely be hell.
I'm saying it because you mentioned that you got metal to show in 'some areas'. -- I would go get a paint remover "bit" and go at it.
I wish I had pics, but the straight 'wire' ones are not as good as the ones that look like a brillo cleaning pad (so to speak)... They 'brillo pad' looking ones get rid of the rust in no time. -- PLUS makes the metal show on 80% of the whole bumper in no time...cleans it right up.

PJ