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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Technical Forums > Mechanical Maintenance: Break-in / Oil & Fluids / Servicing / Warranty > Cation: SHADOW GRILLS WARNING



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      04-03-2006, 12:58 PM   #1
Broken1
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Cation: SHADOW GRILLS WARNING

I did my shadow grills and it looked really nice.

I sprayed 2 coats of black (to make sure all the silver was covered after sanding it down nicely) and then proceded with a good coat of clear.

The car looked fine for quite a while, but after my speedy drive on the weekend - I was cleaning the bugs of the front of my car when I noticed....

The shadow grills were stone chipped. Not one or two, but ten or twenty. All over, millions of chips. I inspected the front of the car for chips, and there are a few - but nothing close to the amount on the grills.

Just be warned - if you do the shadow grills DIY - you might need to be doing it every once in a while - retouching them as they get chipped.

I'm going to retouch mine this weekend and monitor how long they last. If they get stone chips again, I'll just buy some chrome ones ala 330i
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      04-03-2006, 01:00 PM   #2
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Same problem here.

I'll be re-paint my grill and cover it with

clear box tape or clear film.
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      04-03-2006, 02:45 PM   #3
Broken1
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It's really irritating me. I don't see myself repainting them every 2 months or so.

I'm going to sand them down again (mission!) paint 2 coats of black, 2/3 coats of clear coat and see.
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      04-03-2006, 02:59 PM   #4
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Broken, I'd suggest you buy a sheet of those protective clear films and put it over the grills
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      04-03-2006, 03:05 PM   #5
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Quote:
Originally Posted by canucklion
Broken, I'd suggest you buy a sheet of those protective clear films and put it over the grills
I'll have to see. It would be quite difficult to get it right round the "spokes" etc.
I'm going to be adding more clear coat to this application to "protect" it more - and if it doesn't work...New grills will be mine.
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      04-03-2006, 03:12 PM   #6
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Broken1- I would hope that a few extra coats of clear coat should help. But who knows, the problem may be that the black paint is not adhering to the grill and all the clear coat in the world won't help if thats the case. Good luck either way. I ordered the chrome grill and it should be here tomorrow- so I obviously think that would look good also.
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      04-03-2006, 03:14 PM   #7
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I agree it'll be a bitch to do, but I would try wrapping each slate individually. Keep the dark grill, looks nice on your car, I'm waiting to do mine as soon as it arrives!
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      04-03-2006, 03:19 PM   #8
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Quote:
Originally Posted by e90driver
Broken1- I would hope that a few extra coats of clear coat should help. But who knows, the problem may be that the black paint is not adhering to the grill and all the clear coat in the world won't help if thats the case. Good luck either way. I ordered the chrome grill and it should be here tomorrow- so I obviously think that would look good also.
Nope...the black paint adhered perfectly to the grill. They are stone chips :-)

I've calmed down quite a bit - and I'm going to buy a very expensive high-quality clear coat which is chip resistant.

That should do the trick.

I really like the black grills. They look very sleek indeed.
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      04-03-2006, 03:29 PM   #9
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i did black grills on my e34. i used adhesion promoter first, then the typical primer, coats of black paint, and many layers of clear coat.



the result. it worked fairly well, but still, it did not avoid chips 100%. but far less chipping then just than if adhesion promoter was not used.

in the end, i got sick of touching it up. some full black replacements were finally offered for the e34, and i got those.
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      04-03-2006, 11:27 PM   #10
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you know,

i posted this "complaint" a few weeks ago and I got railed on. (not enuff paint. not enuff clear coat. didn't sand well enuff, etc.) I have the same issue, and I just repainted them this past weekend. Until the "shadow" grilles that are available for the e46 comeout for the e90 (maybe next year?), I guess I'll be touching up every couple of months or so.
i still love the way it looks when it's all blacked out.
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      04-03-2006, 11:35 PM   #11
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Too much claear coat will gives you "shiny " grill.

Actually, I painted first time and it had chips all over.

So, I repaint it for 6coat with black and 5coat with clear.

Also used hair dryer to make the paint goes for long.

But!!! It was just same. It will pills off anyways...

What I suggest to do is using clear scotch packing tape (or 3M, etc, etc...)

over the grills. There is more expensive protect film but they work just same.
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      04-05-2006, 09:00 PM   #12
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do u guys have a matte finish or a glossy finish? do u think its because u didnt sand it well enough? or because its cheaper paint?

i've bought a 325 grill and im planning on blacking out the chrome parts in a glossy finish. any tips?
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      04-06-2006, 01:27 AM   #13
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Quote:
Originally Posted by uhaulball
do u guys have a matte finish or a glossy finish? do u think its because u didnt sand it well enough? or because its cheaper paint?

i've bought a 325 grill and im planning on blacking out the chrome parts in a glossy finish. any tips?
If you do not want to use clear tape or film to protact your grill,

There is really strong clear coat paint that you can use.

Go to home depot and looking for

"MINWAX indoor/outdoor HELMSMAN" It is a spray "urethane."

You can find in paint section. Black cap and green color body with

some door and chair pics. It is pretty strong. A lot stronger than

regular clear "paint". Good stuff

Also, I used hair dryer to make that paint dry out fater and

put some heat to make that stronger (U know...heat...looks more professional...)
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      04-06-2006, 01:51 AM   #14
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I let my bodyshop do the job, and so far, the paint holds well.
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      04-06-2006, 02:06 AM   #15
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has anyone tried painting the surround of the grilles with a different paint other than black to match the color of the car? im thinking of getting a separate grille to paint and keep the original one.

my mystic blue is coming in more or less than 2 weeks and i wonder if i can do that mod. maybe just paint the surround or the whole grille.

sorry if im a little off topic.
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      04-26-2006, 08:08 PM   #16
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should i pay a body shop to do these, or should i do it myself?

i got quoted 50$ YES 50$
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