Wetsanding and Polishing Headlights to Remove Pits?

  1. +61404532026, 12:31 AM #1

    [external_link_head]

    Hey guys so I have a set of headlights that have some pits in them and I would like to remove them. I have seen on some boards where people wet sand the headlight deep enough to remove the pits, then polish the headlight with an orbital or rotary buffer (in my case it would be a Meguiars G110 V2), to bring the headlight back to showroom condition. With my orbital, how well will I be able to polish out the wet sanding marks? I know a rotary would do a better job, and if the orbital isn`t good enough, I could get someone to use a rotary on them.

    Now after I was to have all this done, I know I will have probably had to wet sand through the OEM coating on the headlight that protects from oxidation. Does anyone know what products can be used to recoat a bare headlight? Would opticoat be good enough? Regardless, I would apply a laminx film, but I`ve heard it`s still possible for the headlight to oxidize if the OEM coating is gone.

    Any info would be greatly appreciated. Thanks.

    2003 BMW E46 M3 TiAg/ Cinnamon 6MT


  2. +61404532026, 06:19 AM #2

    Wetsanding and Polishing Headlights to Remove Pits?

    Wetsanding and Polishing Headlights to Remove Pits?


    You can remove the sanding marks with an orbital and opti- coat can be used to recoat the headlight. Barry Theal wrote an article on headlight restoration, might want to check it out.


  3. +61404532026, 09:27 AM #3

    Wetsanding and Polishing Headlights to Remove Pits?

    Wetsanding and Polishing Headlights to Remove Pits?


    it would best if you removed the lights from the car if your using the g110. sand to at least 2000 grit or hight then buff out and apply opticoat if using a new coating you`ll only need to sand them to 800 grit on so then apply new coating. the griots 3″ polisher works great for doing headlights.


  4. +61404532026, 02:26 PM #4

    Wetsanding and Polishing Headlights to Remove Pits?

    Wetsanding and Polishing Headlights to Remove Pits?


    I have restored plenty of headlights. Depending on the condition of the headlights, I would either start with a wet sand at 1500grit followed by a 2000 grit wet sand, or just start with 2000grit. Then I go over it with a rotary LC orange pad with m105 followed by M205 gray LC pad. Then use some kind of sealant with a UV protection and voila!!


  5. +61404532026, 03:07 PM #5

    Wetsanding and Polishing Headlights to Remove Pits? Originally Posted by New Image

    I have restored plenty of headlights. Depending on the condition of the headlights, I would either start with a wet sand at 1500grit followed by a 2000 grit wet sand, or just start with 2000grit. Then I go over it with a rotary LC orange pad with m105 followed by M205 gray LC pad. Then use some kind of sealant with a UV protection and voila!!

    If he`s trying to remove deep pits it might be necessary to start at a lower grit; 800 would probably be a good starting point in that instance.


  6. +61404532026, 10:13 PM #6

    Thanks guys. Really appreciate it.

    So basically I can wetsand as deep as I need to in order to remove the pits, eventually working my way up to 2000 grit, followed by my G110, and finally adding opticoat to seal it off?

    2003 BMW E46 M3 TiAg/ Cinnamon 6MT


  7. +61404532026, 03:31 AM #7

    Wetsanding and Polishing Headlights to Remove Pits?

    Wetsanding and Polishing Headlights to Remove Pits?


    In order to remove these deep chips and gravel nicks you will need to definitely need to start with a much more course grit. I recently did a complete set of C6 lenses that were gravel blasted on the local freeway and they were tore up…….

    I started out with 320 grit and worked up, then recoated….

    Lens showing gravel damage

    Wetsanding and Polishing Headlights to Remove Pits?

    Properly taped and prepped

    Wetsanding and Polishing Headlights to Remove Pits?

    Here is a 50/50 showing the unique pattern that you will see as the OEM UV sacrificial coating is removed

    Wetsanding and Polishing Headlights to Remove Pits?

    Up close, right side shows UV coating and gravel chips and nicks leveled out, left side still present.

    Wetsanding and Polishing Headlights to Remove Pits?

    Leveled out and ready for the next step……

    [external_link offset=1]

    Wetsanding and Polishing Headlights to Remove Pits?

    Comparison shot..

    Wetsanding and Polishing Headlights to Remove Pits?

    Breaking it down……

    Wetsanding and Polishing Headlights to Remove Pits?

    Wetsanding and Polishing Headlights to Remove Pits?

    Wetsanding and Polishing Headlights to Remove Pits?

    2 more levels of resurfacing up using a wet sanding technique and this was my results….

    Wetsanding and Polishing Headlights to Remove Pits?

    Lens recoated

    Wetsanding and Polishing Headlights to Remove Pits?

    Wetsanding and Polishing Headlights to Remove Pits?

    Wetsanding and Polishing Headlights to Remove Pits?


  8. +61404532026, 08:49 AM #8

    Wetsanding and Polishing Headlights to Remove Pits?

    Wetsanding and Polishing Headlights to Remove Pits?


    What did you recoat the lenses with? I think that looks great!


  9. +61404532026, 09:53 AM #9

    Wetsanding and Polishing Headlights to Remove Pits? Originally Posted by EliminatorXP

    In order to remove these deep chips and gravel nicks you will need to definitely need to start with a much more course grit. I recently did a complete set of C6 lenses that were gravel blasted on the local freeway and they were tore up…….

    I started out with 320 grit and worked up, then recoated….

    Lens showing gravel damage

    Wetsanding and Polishing Headlights to Remove Pits?

    Properly taped and prepped

    Wetsanding and Polishing Headlights to Remove Pits?

    Here is a 50/50 showing the unique pattern that you will see as the OEM UV sacrificial coating is removed

    Wetsanding and Polishing Headlights to Remove Pits?

    Up close, right side shows UV coating and gravel chips and nicks leveled out, left side still present.

    Wetsanding and Polishing Headlights to Remove Pits?

    Leveled out and ready for the next step……

    Wetsanding and Polishing Headlights to Remove Pits?

    Comparison shot..

    Wetsanding and Polishing Headlights to Remove Pits?

    Breaking it down……

    Wetsanding and Polishing Headlights to Remove Pits?

    Wetsanding and Polishing Headlights to Remove Pits?

    Wetsanding and Polishing Headlights to Remove Pits?

    2 more levels of resurfacing up using a wet sanding technique and this was my results….

    Wetsanding and Polishing Headlights to Remove Pits?

    Lens recoated

    Wetsanding and Polishing Headlights to Remove Pits?

    Wetsanding and Polishing Headlights to Remove Pits?

    Wetsanding and Polishing Headlights to Remove Pits?

    Awesome! Thanks dude!

    2003 BMW E46 M3 TiAg/ Cinnamon 6MT


  10. +61404532026, 12:20 PM #10

    BTW, did you use a rotary or a DA to get those results for the polishing stage after you finished wetsanding?

    2003 BMW E46 M3 TiAg/ Cinnamon 6MT


  11. +61404532026, 01:58 PM #11

    Tip: Beware of excess heat when polishing. You don`t want to crack plastic or glass.

    The Stable

    2015 BMW M235i

    2014 Porsche Carrera S

    2012 VW Touareg TDI

    1996 Porsche Carrera 4S


  12. +61404532026, 03:51 PM #12

    Wetsanding and Polishing Headlights to Remove Pits?

    Wetsanding and Polishing Headlights to Remove Pits?


    If you are looking for consumer size packing Amazon has the complete set (sand papers, cleaning solution, UV coating etc.) from a reputable bulb company for $20.00

    Sylvania 38771 Headlight Restoration Kit


  13. +61404532026, 04:55 PM #13

    Wetsanding and Polishing Headlights to Remove Pits? Originally Posted by Rx8 Fanatic

    BTW, did you use a rotary or a DA to get those results for the polishing stage after you finished wetsanding?

    Depending on what was used to recoat those lenses, he may not have polished them at all after sanding. Remember that a lot of coatings require mechanical adhesion.

    [external_link offset=2]


  14. +61404532026, 04:57 PM #14

    Wetsanding and Polishing Headlights to Remove Pits?

    Wetsanding and Polishing Headlights to Remove Pits?


    Wetsanding and Polishing Headlights to Remove Pits? Originally Posted by lostdaytomorrow

    What did you recoat the lenses with? I think that looks great!

    Thank you, I recoated these with a wipe on 2 part system that is heat cured for the flat OEM look that you see in the photos.

    Wetsanding and Polishing Headlights to Remove Pits? Originally Posted by Rx8 Fanatic

    Awesome! Thanks dude!

    Thanks your very welcome.

    Wetsanding and Polishing Headlights to Remove Pits? Originally Posted by Rx8 Fanatic

    BTW, did you use a rotary or a DA to get those results for the polishing stage after you finished wetsanding?

    No polishing was done on this lens whatsoever…..The were completley resurfaced and recoated with a UV coating for long term stability and protection from the elements.

    Wetsanding and Polishing Headlights to Remove Pits? Originally Posted by Shiny Lil Detlr

    Depending on what was used to recoat those lenses, he may not have polished them at all after sanding. Remember that a lot of coatings require mechanical adhesion.

    Since these were recoated, adhesion is extremely important as you mention, therefore no polishing was done at all so that the polycarbonate has some “Bite”

    Using an interface pad is “Very” important for performing this type of service. It allows you to contour your resurfacing steps to the exact shape of the lens without distorting the surface. Be sure to work in a manner in which you do not sit with the D/A for too long in one spot to avoid heating and warping of the polycarbonate lens.


  15. +61404532026, 04:59 PM #15

    Wetsanding and Polishing Headlights to Remove Pits?

    Wetsanding and Polishing Headlights to Remove Pits?


    Wetsanding and Polishing Headlights to Remove Pits? Originally Posted by lostdaytomorrow

    What did you recoat the lenses with? I think that looks great!

    Thank you, I recoated these with a wipe on 2 part system that is heat cured for the flat OEM look that you see in the photos.

    Wetsanding and Polishing Headlights to Remove Pits? Originally Posted by Rx8 Fanatic

    Awesome! Thanks dude!

    Thanks your very welcome.

    Wetsanding and Polishing Headlights to Remove Pits? Originally Posted by Rx8 Fanatic

    BTW, did you use a rotary or a DA to get those results for the polishing stage after you finished wetsanding?

    No polishing was done on this lens whatsoever…..The were completley resurfaced and recoated with a UV coating for long term stability and protection from the elements.

    Wetsanding and Polishing Headlights to Remove Pits? Originally Posted by Shiny Lil Detlr

    Depending on what was used to recoat those lenses, he may not have polished them at all after sanding. Remember that a lot of coatings require mechanical adhesion.

    That is correct…….+1



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