painting bumper ?

[randy73]

When you paint your bumper, how did you remove the chrome?

[JB400]

sand blasting works

[Dino]

If you want to paint the bumper then blasting is the best way as you need to get down to the metal.  Start with a coarse grit but try to finish with a finer grit.  I've done it the hard way as well, use a rotary sander with a 60 grit until you get down to the copper, then switch to a finer grit.  Blasting is easier.

I wouldn't bother with acid in this case.

[randy73]

Thanks and and what would you use to fill the pitting?

[Dino]

Thanks and and what would you use to fill the pitting?

Ptting is usually in the three plated layers, not in the steel.  Once you've blasted to bare metal I'm sure it'll be smooth enough that you can go over it with a high solid primer and sand the bumper silky smooth.  If there truly is more damage to the metal then use a metal to metal filler before the primer. 

[Homerr]

Don't chrome places strip them?

[Dino]

Don't chrome places strip them?

Yes, but with intent to rechrome.  The acid they use takes of most of the plating but it does leave some of the base behind.  The part then gets polished and touched up where needed and triple plated to finish.

You can mix up an acid in your back yard and get a bumper pretty clean, but blasting (violent as it is) is still a whole lot safer.

[Patronus]

We just scuffed the chrome up with the lil' 90*. I think it was 100g pad.