How to keep soft top rear plastic window crystal clear? | FerrariChat

How to keep soft top rear plastic window crystal clear?

Discussion in 'Ferrari Discussion (not model specific)' started by cwwhk, Feb 29, 2004.

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  1. cwwhk

    cwwhk Formula 3

    Nov 13, 2003
    Hong Kong, Tokyo
    Full Name:
    Hi everyone:

    I need some advise on how to keep the rear plastic window crystal clear on my 360 Spider. It seems some gunk or wax has accumulated on mine so it looks rather foggy. Have not used any cleaners yet because I think that will make the plastic yellow in the long run. Tried just mild detergent soaking then wipe with soft cotton towel. Seems to work after a lot of buffing with the towel, but takes too much effort and hard to get at the edge near the canvas fabric.

    Is there an easier way? I'd rather drive it than clean it. Thanks in advance for any comment.
  2. TCM

    TCM Formula Junior

    Nov 10, 2003
    Tyngsborough, MA
    The exact name is escaping me at the moment but I know Zymol offers a product made specifically for the plastic convertible windows. You may want to check out and see if you can find it. You can also always use water and a microfiber cloth for temporary maintence. Hope this helps.
  3. nberry

    nberry Formula Junior

    Nov 1, 2003
    Meguiars Mirror Glaze #18 clear plastic cleaner/polish.
  4. Sean F.

    Sean F. F1 Rookie

    Feb 4, 2003
    Full Name:
    Sean F
    The plastic get's hazy b/c it has small scratches on it. That's just the way it is with plastic.

    The only way to clean it is too have it polished. It took so much effort for you too clean it b/c what you used is not very abrasive, so it takes more elbow grease.

    Try the Meguires on a small section first and see how it works. It will also take a lot of work, but not as much.
  5. cwwhk

    cwwhk Formula 3

    Nov 13, 2003
    Hong Kong, Tokyo
    Full Name:
    Thanks guys. I will check these products out. BTW it's not tiny scatches, I am 99% sure it's just some liquid wax that got dried onto the clear plastic. It got foggy after I took it to a car wash a couple of times. In Tokyo, they hand wash at request but runs the machine over the car (without the brushes of course) to spray soap solution over the car. I am pretty sure they had mixed in some liquid spray wax in the solution.

    Now I specifically tell them not to inject any wax in the soap solution. And it has not gotten any worse. So I think I just need a cleaner that will clean off the wax without causing any yellowing of the clear plastic.
  6. TOM B

    TOM B Formula 3

    Jul 24, 2003
    Orange County, NY
    Full Name:
    Thomas Buckley
    I'm assuming the window is a soft plastic -- as opposed to Lexan which is rigid --. If so , I used Lemon Pledge on my convertible top windows years ago. It cleaned, shined, and protected and the window never hazed .

  7. MarkCollins

    MarkCollins F1 Rookie

    Jul 2, 2002
    South England
    Full Name:
    Mark Collins
  8. solly

    solly Formula 3

    Jun 2, 2001
    Westchester NY
    Full Name:
    Dr. Steven S.
    I had the same problem and used liquid dish soap which got the dirt off the outside, but it was still not clear. Turns out there was haze on the inside of the plastic window as well, and once I realized that and cleaned the inside it was perfectly clear again.

    I have some plastic window cleaner and conditioner left over from my Porsche days. It was supplied with the car. Works fine on the Ferrari. You can order it from Porsche. The conditioner keeps the plastic supple.
  9. autobob

    autobob Rookie

    Jan 7, 2003
    Full Name:
    Bob Harris
    If the cleaners or Meguiars #18 does not do it the next step may be Meguiars #10. It is a plastic polish designed for soft clear plastics. This has worked well on my Alfa Spider's headlamp covers, lexan, and convertible back soft plastic window. After #10 comes plastic cleaner #17 but be careful as #17 can put small scratches in the plastic that have to be removed by #10.
  10. enjoythemusic

    enjoythemusic F1 World Champ

    Apr 20, 2002
    Full Name:

    As i recall they actually MAKE some of the other products mentioned in this thread. Naturally it is less $$$ due to the fact they make it, others just rebrand it into their own product.

    Enjoy the Drive,

    Steven R. Rochlin
  11. zsnnf

    zsnnf Formula 3

    Sep 11, 2003
    I was having a hard time getting the lexan rear window on the F40 clean. I found a product called Plexus. You can find it on line at
    It feeds the plastic. Leaves it shinny and clear. It also reduces static. It works on all plastics. Neat stuff. Sort of looks like Pledge going on.

  12. bumboola

    bumboola Formula Junior

    Mar 7, 2003
    Pro Honda Spray Cleaner & Polish works well.
  13. Ricambi America

    Ricambi America F1 World Champ
    Sponsor Owner

    I was just looking through my latest Eastwood catalog. You might want to check out their vinyl window polish kit (product 40000 and 40012). They're at

  14. JeffMN

    JeffMN Rookie

    Jan 18, 2004
    Here's a well kept secret.

    Simi-Chrome polish. Around $3.00 for a tube.

    It's used for polishing silverware, etc. This stuff works wonders on any clear plastic. It removes the scratches and takes the yellowing out. I've used it for years for polishing windscreens on motorcycles.

    Last time I saw it it was in a green and white package at the hardware store.

  15. ghost

    ghost F1 World Champ
    Lifetime Rossa

    Dec 10, 2003
    I'm not currently "enjoying the drive" or "enjoying the music." I'm just enjoying the avatar pictures that Steven keeps providing. Sorry for the OT comment, but I couldn't resist. :D
  16. AnotherDunneDeal

    AnotherDunneDeal F1 Veteran

    Jun 2, 2003
    N.Richland Hills, Tx
    Full Name:
    James Dunne
    You can get the Meguiars cleaners at any BMW parts dept. Use the cleaner first and then apply the polish. The polish is like the stuff they use to buff watch crystals. Relatively simple to use and works well. Been using it for years.
  17. cwwhk

    cwwhk Formula 3

    Nov 13, 2003
    Hong Kong, Tokyo
    Full Name:
    Wow, thanks guys for the many suggestions. Now I have so many options, I think my problem is no more.

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