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Cadillac DeVille 1985 to 2005 including:
1985-1992 Fleetwood, 1993 Sixty Special, All FWD Forum Discussion, Yellowing headlights in Past Cadillac Vehicle Discussion; Thank you this is very helpful. Man after all this work I sure hope these damn headlights don't yellow again! ...
  1. #16
    GM_Ridin' is offline Cadillac Owners Fanatic
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    Thank you this is very helpful. Man after all this work I sure hope these damn headlights don't yellow again! Or for a VERY long time!

  2. #17
    basscatt's Avatar
    basscatt is offline Cadillac Owners 10000+ Posts
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    Re: Yellowing headlights

    Quote Originally Posted by GM_Ridin' View Post
    Thank you this is very helpful. Man after all this work I sure hope these damn headlights don't yellow again! Or for a VERY long time!
    ----------------------
    if you do it right - and apply the new coating - they will look new for years -

  3. #18
    GM_Ridin' is offline Cadillac Owners Fanatic
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    That's what I was hoping to hear because there ain't no use in all the efforts for it to go bad quickly. I'm looking forward to doing this little project. When I do this (whenever) that may be I will make sure to post pics here.

  4. #19
    cadi509's Avatar
    cadi509 is offline Cadillac Owners Connoisseur
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    Sorry to drag this up but I did the spar urethane/mineral spirits trick ( my headlights were already pretty good) and oh man where has the trick been all my car years it looks amazing

  5. #20
    basscatt's Avatar
    basscatt is offline Cadillac Owners 10000+ Posts
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    Re: Yellowing headlights

    Quote Originally Posted by cadi509 View Post
    Sorry to drag this up but I did the spar urethane/mineral spirits trick ( my headlights were already pretty good) and oh man where has the trick been all my car years it looks amazing
    -------------------------
    us old guys still have a trick or two up our sleeves -

    glad it worked for you -

  6. #21
    cadillac kevin's Avatar
    cadillac kevin is offline Cadillac Owners Master
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    Re: Yellowing headlights

    great advice on refinishing headlamps.
    I need to redo my cornering lamps and clear turnsignals on my FWB and the turnsignals/ sidemarkers on the van.

  7. #22
    Darth Mobius is offline Cadillac Owners Member
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    Re: Yellowing headlights

    Quote Originally Posted by Submariner409 View Post
    ......... or you can use one of the multitude of headlamp lens restoration kits on the shelves at any car parts store. Some members like the Meguiar's and 3M kits. I have had great success with a kit from www.customchemicalpkg.com , also available in parts stores.

    To do it correctly takes time and sweat.
    My old daily driver was a 1998 Taurus, which I never see without yellowed headlights. I took fifteen minutes from my day, used the Meguiar's kit, and it was vastly better. Not perfect, but good enough for government work, as they say, and I didn't worry about it until I sold the car.

  8. #23
    GM_Ridin' is offline Cadillac Owners Fanatic
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    Makes me more eager to do this.

  9. #24
    GM_Ridin' is offline Cadillac Owners Fanatic
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    It's been nearly 2 yrs since my o.g. post but now I'm ready to give the good ol headlight restoration a shot.

    These questions are 4 you basscatt;

    As far as the sanding process is it all done wet?

    When I buff em' out which rubbing compound from experience would you suggest?

    Also what method did you find better, elbow grease by hand or a buffer?

  10. #25
    basscatt's Avatar
    basscatt is offline Cadillac Owners 10000+ Posts
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    Re: Yellowing headlights

    Quote Originally Posted by GM_Ridin' View Post
    It's been nearly 2 yrs since my o.g. post but now I'm ready to give the good ol headlight restoration a shot.

    These questions are 4 you basscatt;

    As far as the sanding process is it all done wet?

    When I buff em' out which rubbing compound from experience would you suggest?

    Also what method did you find better, elbow grease by hand or a buffer?
    --------------------------
    As far as the sanding process is it all done wet?
    YES -
    have a spray bottle full - and ready -
    you want to keep the surface wet -
    and constantly "flush" the residue away -
    that way the sanding discs wont clog-up -

    don't bother with a battery drill -
    it won't last long enough -

    I use an electric "double-insulated" ryobi -
    haven't been shocked yet -

    When I buff em' out which rubbing compound
    from experience would you suggest?

    it is included in the 3M kit -

    Also what method did you find better,
    elbow grease by hand or a buffer?

    BOTH -

    ----------------

    get the 3M 39008 kit -

    the 3M kit includes 500 - 800 - 3000 discs -

    I start with 400 - then 800 - 1200 - 2000 - 3000 -
    it goes much quicker -
    but - other than bulk - I don't know where to get sanding discs -
    other than what comes in the 3M kit -

    ----------------

    while you're at the home improvement store -
    also get some wet-sanding sheets -
    500 - 800 - 1200 - 2000 -

    use the sheets after the 3M discs -
    and ONLY go up and down - or side to side -
    to NOT use circular motion -

    --------------------

    I found the original coating on the Deville headlights particularly hard -
    it IS going to take a while to get that first step done right -

    the lens MUST have that uniform "frosted" look when you are finished with the 500 -

    if you don't do that first step correctly -
    the end result WILL be VERY disappointing -

    ----------------

    watch this video
    http://www.youtube.com/watch?v=rfsuCbxviDA

    they use the discs dry -
    I use them wet -

    after the 500 disc - use the 500 sheet by hand -

    after the 800 disc -
    follow up with the 800 sheet - use it side to side -

    then 1200 sheet - this time go up and down -
    this method will show what scratches are still in the lens -

    and 2000 by hand - side to side -

    by this time the lens should look pretty good -
    with NO noticeable scratches - just an overall "dull" look -

    the 3000 disc will "brighten" the lens up -

    -----------------

    carefully inspect your work after each step -
    if it isn't PERFECT -
    STOP -
    go back -
    and do it over until it IS PERFECT -

    there are no short-cuts in this process -
    ---------------------------------------

  11. #26
    Ranger's Avatar
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    Re: Yellowing headlights

    I just did this yesterday on my daughters '04 SLS with great results.

    FWIW, the 3M kit does not call for wet sanding until the 3000 grit 3rd step (I forgot to do it even then). I had no problem doing it dry and simply brushed off the disc every once in a while. The kit provides more than enough polishing compound for both headlamps lenses.

    Once finished, I taped it off and applied several coats of Rustoleum Painters Touch 2X clear gloss. It is a sealant and protectant and adheres to plastic and claims to be UV resistant. Once it dried, I hit it with the polishing compound one more time.


  12. #27
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    Thanks ranger, I bet the spray is the secret. I did the '06 SLK about 2 years ago and it looked great then but I looked it over last week and on its way back to its old look.

  13. #28
    Ranger's Avatar
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    Re: Yellowing headlights

    Yeah, I think a protectant is important for longevity. I was actually looking for a spar urethane (with no luck) when I came across this and it seemed to fit the bill perfectly.

  14. #29
    rayjuswa is offline Cadillac Owners Member
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    Re: Yellowing headlights

    Wouldn't it be a lot easier to just buy new headlights?

  15. #30
    DubcMalice is offline Cadillac Owners Member
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    Re: Yellowing headlights

    new headlights arent cheap... would imagine north of 200$ for a new set. vs 20-40$ and 1-2 hours of your time.

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