So I'm trying to figure out what's needed for polishing a sanded surface.

"NKato" (NKato) 06/29/2018 at 20:37 • Filed to: Killer Queen

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See, the rear bumper on Killer Queen still has that annoying adhesive from when the Pierce County Sheriff’s website was lettered there. I’ve attempted Goo Gone on it, multiple times, and the adhesive is still there, in that mocking outline.

I’ve gone and bought 1000 grit and 2000 grit sandpaper at Home Depot (among a plethora of other purchases) , and I need to know what is needed to, let’s say, polish that bumper cover after I’ve used the sandpaper on it.

Don’t say “wax”. Because that is what you do *after* you’ve finished cleaning up any scratches, et cetera. Waxing is a protective step, not a restorative step. This is what every single god-damn automotive group on Discord has told me, and I just facepalm every single time.

What material do I motherfucking need to polish over the sandpapered surface? What is the work process?

I mean, I could google it, but they’re mostly YouTube videos with shitpile automated subtitles that do nothing to help my deaf ass.

LOREM IPSUM > NKato 06/29/2018 at 20:49

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I'd probably use some polishing compound and a shit-ton of elbow grease, but I'm not the most well advised on the subject. I'd expect the adhesive to foul whatever sandpaper you throw at it fairly quickly, though I've not a lot of experience with wet sanding, so I'l wait with you for Svend to answer.

Dash-doorhandle-6 cyl none the richer > NKato 06/29/2018 at 21:00

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stripe eraser wheel?

vicali > NKato 06/29/2018 at 21:05

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What kind of surface is it on? Is it painted or chrome like a bumper?

I wouldn’t get near it with sandpaper- here is the detail gospel; use only the grit you need..

Start with something like scratchX or a paint correction ‘rubbing compound’. See if that works.

If you go after it with sandpaper you are going to need to go over it with a few steps to get it back to smooth- think 800, 1200, 1600, 2000 wet. Then your going to go to a polishing compound, and then sealant/wax.

Pixel > Dash-doorhandle-6 cyl none the richer 06/29/2018 at 21:09

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This is what i was about to suggest.

Coating it in goo gone and covering it in plastic wrap so the goo gone can work for a while longer without drying out might work

Dash-doorhandle-6 cyl none the richer > Pixel 06/29/2018 at 21:12

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gun wash solvent would take it right off BUT cop car bumpers may have many touch ups in many kinds of paint gunwash will wrinkle anything that isn’t real automotive paint. 

NKato > vicali 06/29/2018 at 21:14

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Painted surface of a plastic bumper cover. Crown Vic bumpers are actually covered by an exterior.

Jordan and the Slowrunner, Boomer Intensifies > NKato 06/29/2018 at 21:20

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Use acetone.

Your boy, BJR > NKato 06/29/2018 at 21:22

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Fun life hack! In a pinch, brake fluid works really well at removing stuff. I suggest DOT 1 or 2, 3 or 4 might be too potent.

vicali > NKato 06/29/2018 at 21:36

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Claybar would probably do it too without wrecking your paint.

It’s all fun joking around about acetone or brake fluid but keep in mind if S omeone doesn’t know it’s a joke they could make a mess out of their pride and joy. That’s unexcellent

Svend > NKato 06/29/2018 at 22:09

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Before attempting wet sanding, try using a better tar and glue remover such as AutoFinesse ObliTARate. For more prolonged use, wet the area with the tar and glue remover, then wetting a bit of kitchen paper towel place over the area you wish to remove the glue from and allow to dwell, but not to dry. Check back often to see if any is coming away.

Alternatively use a hair dried to heat the area and use a small piece of plastic to gently nudge back and forward to separate the adhesive from the vehicle.

The reason I suggest these rather than wet sanding is you can create more damage to correct with wet sanding than these. Always exhaust the method of least harm before upping the auntie.

Any shadowing or ghosting from the sticker or badge can easily be removed with a medium cut polish. 

NKato > vicali 06/29/2018 at 22:10

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Exactly. I had “brake cleaner” as a suggestion in three groups that I’d queried. It’s not very fun to see such jokey dipshits.

NKato > Svend 06/29/2018 at 22:18

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This adhesive used to be part of a vinyl decal’s backing. I have used some pretty strong remover (Goo Gone), which had very limited success. I’ll look into the ObliTARate product.

Svend > NKato 06/29/2018 at 22:26

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I’ve stripped a few work vans over the years and the adhesive can be a particular pain in the arse to remove especially as some comes away easily, lulling you into a false sense of victory, before turning into a great example of anger management and patience.

Keep in there.

But wet sanding an adhesive from a surface, the adhesive in it’s general nature are raised and it’ll be all too easy to do more harm to correct especially as the adhesive be ing removed will clog up the wet sand paper. If you should to go the wet sand route. Wrap the wet sand paper tight around a smooth surfaced block using a small amount of car shampoo as a lubricant and checking the wet sand paper surface for any build up of adhesive material. 

His Stigness > NKato 06/30/2018 at 00:09

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So what Svend said and try different chemicals. In my experience goo gone sucks for removing adhesives and tar. The most successful thing I’ve used that actually works better than brake cleaner, but it’s destructive is Gtechniq’s W7. That stuff smells nasty and strong, but it’s meant for automotive paint. It will strip anything but the clear coat off of it.

But, if that doesn’t work, then you actually want to use a microfiber cutting pad and a cutting compound like Meguiars M105 to grt the adhesive off. Using that will allow the adhesive to build up in the pad. You’ll never get it off if with wet sanding. Think of it like pores of your skin. Sand paper has very, very tiny pores, so it won’t be able to collect anything before you actually start moving around the adhesive and doing damage to the paint. Whereas a microfiber cutting pad and compound will allow you to fill up the pad and not damage the paint.

Larry at AMMO NYC actually specifically says to use microfiber cutting pads and compounds to remove reside. He just uses his old pads since you'll be loading it up with crap and can't use it for paint correcting afterwards. 

The Snowman > Svend 06/30/2018 at 00:18

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What are your thoughts on a clay bar? It's going to trash the clay but it might take it off without too much damage...

Svend > The Snowman 06/30/2018 at 00:26

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Clay for adhesive residue wouldn’t last long.

0000 S teel W ool and a shampoo soap lubricant would be a better option. 

Duck Duck Grey Duck FTMFW! > NKato 06/30/2018 at 15:12

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Xylene for removing the adhesive. Just  don’t leave it on there long. Not nice to paint. I used it to strip a almost completely wrapped van. My Uncle who does vinyl told me to use that.