Windscreen restoration

Discussion in 'Detailing' started by RKC-benz, Apr 10, 2014.

  1. RKC-benz

    RKC-benz Hardcore MB Enthusiast

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    Can any of the knowledgable detailers here please recommend a course of treatment for my 19 year old E280 screen?

    It's just not as clear as a new one.... Micro scratches I guess.

    Thanks in advance.
     
  2. Chrishazle

    Chrishazle Hardcore MB Enthusiast

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    I've seen on my 968 forum that a rayon pad on a DA polisher, with a suitable glass polish, can work wonders - but is very slow and careful work. I've never tried it myself, but the guy that posted is very capable and knowledgeable.
     
  3. OP
    OP
    RKC-benz

    RKC-benz Hardcore MB Enthusiast

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    Thanks...

    DA polisher? Rayon? Etc... That sounds like I need a specialist; I'm keener on something I can buy and apply myself.

    But promising at least that there are people/processes out there.
     
  4. Leabrooks

    Leabrooks Hardcore MB Enthusiast

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    a Cerium Oxide compound is usually used for polishing minor scratches out of glass...and lots of patience.

    Amazon sell it at a reasonable £10.99 inc del.
     
  5. OP
    OP
    RKC-benz

    RKC-benz Hardcore MB Enthusiast

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    Thanks. Any recommendation on cloth type? Or is it microfibre standard stuff...?
     
  6. Dieselman

    Dieselman Banned

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    You wont get them out by hand. Buy a polishing kit to use with a drill.
     
  7. guydewdney

    guydewdney Hardcore MB Enthusiast

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    oops - is that a stonechip, oh dear, you might have to claim on your insurance, what a pity......
     
  8. SL350_SWINDON

    SL350_SWINDON Hardcore MB Enthusiast

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    Just seen a clay bar kit in halfords for windscreens if it's any good I don't know...
     
  9. Leabrooks

    Leabrooks Hardcore MB Enthusiast

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    As Chrishazle and Dieselman said, you need a power tool with a flat mop (buy or borrow a car polisher of the angle grinder type, or use a drill) to polish out the scratches with Cerium Oxide, doing it by hand will not work very well (if at all) as you wont be able to get the speed and pressure to cut and polish the glass and will take approx forever and a day plus a bit more!
     
  10. OP
    OP
    RKC-benz

    RKC-benz Hardcore MB Enthusiast

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    Thank you for all the tips. As long as I'm doing no harm I don't mind the effort and investment of time and a few pounds.

    From what I understand from the above, the paste and polishing attachment are going to grind/cut and therefore resurface the windscreen... sounds mean. How do I make that work without leaving streaks, patches and untidy edges! Or do I just accept the status quo and buy a new screen one day soon(ish)...?

    As per the quote above about a chip, there is no chip on the screen. Can't claim for something that doesn't exist...
     
  11. Charles Morgan

    Charles Morgan MB Club Veteran

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    The windscreen on my 190 was scratched to pieces and cost the grand total of £230 to replace via the local fitter. My experience of doing lots of these bits of DIY is you can spend a lot of time and money on it and it still looks rubbish.
     
  12. guydewdney

    guydewdney Hardcore MB Enthusiast

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    There will be a chip, if you smack it with a hammer..... lol. It could happen tomorrow on the motorway, couldnt it?
     
  13. OP
    OP
    RKC-benz

    RKC-benz Hardcore MB Enthusiast

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    Charles - you might just be right... Considering the endless tipping of cash into the car at the moment, I might as well spend a little more and be able to see out!!
     
  14. OP
    OP
    RKC-benz

    RKC-benz Hardcore MB Enthusiast

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    Hmmmm.....
     
  15. kth286

    kth286 Hardcore MB Enthusiast

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    It might be worth the special paste just as a learning curve.

    AS the expert, you can then impart your knowledge to us less informed souls
    that are squinting through 20 year old glass.
     
  16. IanA2

    IanA2 Hardcore MB Enthusiast

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    I have a few realy cracks in my 430. Just before the last MoT I took it to AutoGlass to see if they thought it needed a new one. I was rather expecting them to say it would need to be replaced. Thankfully, they very honestly, said it was fine. Saved me £70 which was nice.
     
  17. Dieselman

    Dieselman Banned

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    I did the screen on one of my cars. There was a football mark right in my vision, so i had to do something.

    Using a polishing kit and a drill it was hard work, but the results are perfect.
     
    1 person likes this.
  18. boxbrownie

    boxbrownie Hardcore MB Enthusiast

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    You'll not get the windscreen back to clear with grinding pastes and drills/polishers.

    Save you money and buy a new screen, the difference is clear (sorry).

    As above though.......small crack from a stone chip will require a screen replacement, but a chip will just be "corrected".........go for the crack...... :)
     
  19. boxbrownie

    boxbrownie Hardcore MB Enthusiast

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    Its fine for a small defined damaged area, but for an overall worn (wiper area) old screen it would take weeks of polishing and then if you not carefull it'd be patchy.
     
  20. Dieselman

    Dieselman Banned

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    The small area was about 9" round, but I also did a few other bits as well. Took an evening.
     

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