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Old 10-03-2017, 10:15 AM   #1
E60525d
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Headlight restoration

Im am looking to do a headlight restoration on my BMW but have a couple of questions.

- I will be using 800, 1200, 2000, 2500 grit sandpaper. Will Meguiars PlastX be OK to polish out the sand marks?

- Once complete, will I need to seal the headlights for protection? Will Collinite 476 be OK or do I need a proper headlight sealant?
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Old 10-03-2017, 04:38 PM   #2
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I did mine on the e60, search back in the other h/light resto thread to see the results.
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Old 11-03-2017, 09:54 AM   #3
E60525d
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Yes thanks, I have seen your results, great transformation.

But I still require clarification, is plastx to Polish out or do I need something stronger?
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Old 11-03-2017, 10:20 AM   #4
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If you want to seal them properly you should really be using clear coat. You can wax them with 476 but it will need constant topping up.

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Old 11-03-2017, 09:28 PM   #5
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For protection i used special headlight foil.
Bring on with A hairblower to make it shrink A little on the headlight and it stays on perfect. No negative affect after 3 years now.
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Old 11-03-2017, 09:51 PM   #6
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Quote:
Originally Posted by E60525d View Post
Yes thanks, I have seen your results, great transformation.

But I still require clarification, is plastx to Polish out or do I need something stronger?
Something stronger I would suggest mate after 2500 you will need a cutting compound and then a finishing polish and as for protection have a look on CYC site and I think they do a coating or something to protect the lights from Sonax
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Old 11-03-2017, 11:10 PM   #7
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Are you doing the polishing by hand or do you have a machine? If you do then as Chongo states don't go for the PlastX. You could get away with a one step polish. Sonax Ex04-06 for example. Try to use a firm polishing pad and keep an eye on temperature. You can find yourself concentrating on the light which by nature is small compared to a section of paint. If it gets too hot you'll lose the lubrication of the polish and the finish will be compromised. As for protection the Sonax kit on CYC seems a bit pricey for what it is. (A dispersion of silica in solvent and propellant.) You would not go far wrong with Sonax NPT or PNS these are hydrocarbon based and will bond to the plastic and are the same price for 4 times the size. The bonus is you could protect the whole car. Good luck in your mission bud!
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Old 22-06-2017, 11:02 PM   #8
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Will this work using megs 205 and 105 and my DA ?
Daughters car has just failed MOT and I thought I'd help out and restore them.
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Old 22-06-2017, 11:24 PM   #9
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Quote:
Originally Posted by E60525d View Post
Im am looking to do a headlight restoration on my BMW but have a couple of questions.

- I will be using 800, 1200, 2000, 2500 grit sandpaper. Will Meguiars PlastX be OK to polish out the sand marks?

- Once complete, will I need to seal the headlights for protection? Will Collinite 476 be OK or do I need a proper headlight sealant?
Father in law has used the Meguiars kit on his Saab's headlights with relatively good results - he's taken the do it light and several times approach and they improve each time he has a go...
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Old 22-06-2017, 11:55 PM   #10
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As discussed above, I used 2500, then 2000, then 1500 wet and dry with a soap solution. Used an old fine Rupes pad on the DA and fine polish to clear sanding marks and polish up. Headlight is past its best but was good enough for MOT. Once cleaned off with Eraser I topped it off with DLUX.

Correction: 1500, 2000, then 2500.










Last edited by c87reed; 23-06-2017 at 12:19 AM.
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