Notices
996 Forum 1999-2005
Sponsored by:

Can you get all the yellow out of a headlight?

Thread Tools
 
Search this Thread
 
Old 05-07-2014, 04:00 PM
  #1  
dgjks6
Drifting
Thread Starter
 
dgjks6's Avatar
 
Join Date: Jun 2013
Posts: 2,675
Received 254 Likes on 162 Posts
Default Can you get all the yellow out of a headlight?

After car accident passenger headlight replaced. It is crystal clear. The drivers is a little yellow. I have polished it and it looks 100 times better, but you can still see a difference.
Old 05-07-2014, 04:18 PM
  #2  
Neto
Racer
 
Neto's Avatar
 
Join Date: Apr 2014
Location: Puerto Rico
Posts: 421
Received 23 Likes on 12 Posts
Default

Did you try sanding it down with a fine grit sandpaper such as 2000 grit before polishing it?
Old 05-07-2014, 04:49 PM
  #3  
Tim Wasmer
Race Car
 
Tim Wasmer's Avatar
 
Join Date: Oct 2003
Location: Denver Colorado
Posts: 4,400
Received 45 Likes on 31 Posts
Default

I used these guys on a set that was BAD and it worked like a champ: http://drheadlight.com/
Old 05-07-2014, 07:26 PM
  #4  
alpine003
Banned
 
alpine003's Avatar
 
Join Date: Mar 2010
Location: Chicago
Posts: 7,697
Likes: 0
Received 28 Likes on 26 Posts
Default

Yellow lenses will sometimes needed to be sanded even as low as 800 grit depending on how bad they are. Ask me how I know.
Old 05-08-2014, 02:48 AM
  #5  
heliflyer
Racer
 
heliflyer's Avatar
 
Join Date: Aug 2008
Location: La Pallu, France
Posts: 371
Likes: 0
Received 9 Likes on 8 Posts
Default

You may have to start with grit as low as 400 then work up to 2000 grit in stages before a final polish. Make sure to use a good UV shield final coat or they will be yellow again in a few months.
Maguires plastic polish is a good choice for the final polish
Old 05-08-2014, 06:58 AM
  #6  
DaveCarrera4
Three Wheelin'
 
DaveCarrera4's Avatar
 
Join Date: Nov 2007
Location: Madison, WI
Posts: 1,814
Received 5 Likes on 4 Posts
Default

Originally Posted by alpine003
Yellow lenses will sometimes needed to be sanded even as low as 800 grit depending on how bad they are. Ask me how I know.
aha, that's why you keep your car cover on year round... Ha ha

2002 Turbo - Basalt Black Metallic / 2003 Carrera 4S - Speed Yellow / 1955 356 Continental 1500 - Rust Red
Old 05-08-2014, 12:10 PM
  #7  
alpine003
Banned
 
alpine003's Avatar
 
Join Date: Mar 2010
Location: Chicago
Posts: 7,697
Likes: 0
Received 28 Likes on 26 Posts
Default

Originally Posted by heliflyer
You may have to start with grit as low as 400 then work up to 2000 grit in stages before a final polish. Make sure to use a good UV shield final coat or they will be yellow again in a few months.
Maguires plastic polish is a good choice for the final polish
This is what I did on a couple lenses. I wouldn't go down to 400 prematurely though if you don't have to. A lot more work once you go below 800 to bring them back to a smooth finish, especially if you don't have power tools.

Originally Posted by DaveCarrera4
aha, that's why you keep your car cover on year round... Ha ha
Lol, actually I'm really lazy and don't like wiping the dust and dirt that accumulates over winter, especially on a black car. It doesn't help that whevener it's wet outside and I have to open the garage door, crud falls from the bottom of the garage door onto my car as well.
Old 05-08-2014, 12:25 PM
  #8  
dgjks6
Drifting
Thread Starter
 
dgjks6's Avatar
 
Join Date: Jun 2013
Posts: 2,675
Received 254 Likes on 162 Posts
Default

The 3M kit I used went to 500. Again, looks 1000% better but still not as good as the new one. My brother said the entire plastic yellows all the was through and no matter how hard I scrub it won't all be gone.

After reading these posts and with nothing to lose I am going to get some 400 and start over.
Old 05-08-2014, 01:12 PM
  #9  
particlewave
Banned
 
particlewave's Avatar
 
Join Date: Jan 2014
Location: St. Joseph, MO
Posts: 228
Likes: 0
Received 8 Likes on 8 Posts
Default

Some of the yellowing will probably be on the inside. These headlights develop a yellowish-blue haze on the inside of the lens...not sure what from, but seems to be related to excessive heat from bulbs.
Unless you pull the lens off, there is no way to get rid of it.

Your old headlight may also have some internal crazing that is permanent, but the yellowing does not go all the way through the lens.

The bottom line - they will never match exactly. It just depends on what you are willing to live with.
Old 05-08-2014, 01:37 PM
  #10  
philooo
Rennlist Member
 
philooo's Avatar
 
Join Date: Mar 2010
Posts: 2,332
Received 19 Likes on 13 Posts
Default

Were these headlight ever available with glass on euro model or something ?
the plastic really never look sharp for very long.
Old 05-08-2014, 03:48 PM
  #11  
dgjks6
Drifting
Thread Starter
 
dgjks6's Avatar
 
Join Date: Jun 2013
Posts: 2,675
Received 254 Likes on 162 Posts
Default

Originally Posted by particlewave
Some of the yellowing will probably be on the inside. These headlights develop a yellowish-blue haze on the inside of the lens...not sure what from, but seems to be related to excessive heat from bulbs.
Unless you pull the lens off, there is no way to get rid of it.

Your old headlight may also have some internal crazing that is permanent, but the yellowing does not go all the way through the lens.

The bottom line - they will never match exactly. It just depends on what you are willing to live with.
If I send them to you for the upgrade can you make them match? That would be almost the same cost a new one.
Old 06-09-2014, 07:55 PM
  #12  
particlewave
Banned
 
particlewave's Avatar
 
Join Date: Jan 2014
Location: St. Joseph, MO
Posts: 228
Likes: 0
Received 8 Likes on 8 Posts
Default

Originally Posted by dgjks6
If I send them to you for the upgrade can you make them match? That would be almost the same cost a new one.
It's hard to tell without seeing them in person. Any pictures?
Old 06-09-2014, 11:23 PM
  #13  
kdm
Advanced
 
kdm's Avatar
 
Join Date: Aug 2012
Location: Brunswick, GA
Posts: 61
Received 8 Likes on 6 Posts
Default

I used the 3M kit on my 8 year old van this weekend. The kit has 4 grades (500, 800, 1000, 3000) then the rubbing compound. Came out very nice. You need to apply a good UV sealer which also helps to finish off the surface.
Old 06-10-2014, 07:11 AM
  #14  
RaginBull
Instructor
 
RaginBull's Avatar
 
Join Date: Mar 2013
Posts: 229
Likes: 0
Received 3 Likes on 1 Post
Default

Island Girl Sea Glow. I used these on shoes with clear rubber soles that yellowed and it works. You simply put these on the headlights leave it in the sun or Expose it to UV and it will reverse the oxidation process. It was invented for boats.

http://www.islandgirlproducts.com/is...s/SEAGLOW.html


You can buy it at Tapp Plastics.
Old 06-10-2014, 12:36 PM
  #15  
pordlanzer
Instructor
 
pordlanzer's Avatar
 
Join Date: Apr 2014
Location: Nice, France
Posts: 112
Likes: 0
Received 0 Likes on 0 Posts
Default

I think you just found the coolest looking website/company I've seen in a long time!!!!


Originally Posted by RaginBull
Island Girl Sea Glow. I used these on shoes with clear rubber soles that yellowed and it works. You simply put these on the headlights leave it in the sun or Expose it to UV and it will reverse the oxidation process. It was invented for boats.

http://www.islandgirlproducts.com/is...s/SEAGLOW.html


You can buy it at Tapp Plastics.



Quick Reply: Can you get all the yellow out of a headlight?



All times are GMT -3. The time now is 06:54 PM.