dealing with scratches right through the clearcoat

Discussion in 'Detailing' started by RaceDiagnostics, Sep 2, 2011.

  1. RaceDiagnostics

    RaceDiagnostics Hardcore MB Enthusiast

    Messages:
    248
    Joined:
    Apr 29, 2010
    Location:
    Dunfermline
    Car:
    450SL XK8
    After my success with the deep scatch on my TT I decided to see if I could improve the appearance of some bad scratches on the 450.

    These ones are worse than the one on the TT, they are right through the clearcoat to the basecoat so no chance to completely remove them.

    Here we go, these are on the front left wing.
    [​IMG]

    Rub down with 2000grit paper and speed detailer to lubricate.
    [​IMG]

    The question is always how far down to go into the clearcoat, you just never know, unless you have a paint gauge tool, This was as far as I wanted to go.
    [​IMG]

    Next rub out the sandpaper marks with something like scratch X.
    [​IMG]

    Last time I did it by hand but this time I was able to pick up a cheap random orbit machine for £15 from the Aldi leftovers bin.
    [​IMG]

    Next, the scratches on the side were sanded down, should have done these a bit more, but they are deep, I think I will have a go at filling these with clearcoat and sanding them again sometine.
    [​IMG]

    Finally a bit of a rub with the finishing polish, far from perfect but much better than what I started with.
    [​IMG]
     
    1 person likes this.
  2. eundaddy

    eundaddy Member

    Messages:
    51
    Joined:
    Sep 15, 2009
    Location:
    Reston, VA, USA
    Car:
    1998 C43
    much improved, good job!
     
  3. F1mad

    F1mad Member

    Messages:
    32
    Joined:
    Aug 24, 2011
    Location:
    Bicester
    Car:
    C180 elegance
    Just for a rule of thumb I use if you can catch your finger nail in the scratch it will be too deep to polish without breaking through the lacquer, another tip rub a bit of oil into the scratch if it disappears then there is a good chance of it polishing out as the scratch hasn't broken through the laquer
     
    2 people like this.
  4. OP
    OP
    RaceDiagnostics

    RaceDiagnostics Hardcore MB Enthusiast

    Messages:
    248
    Joined:
    Apr 29, 2010
    Location:
    Dunfermline
    Car:
    450SL XK8
    Not true, your nail is very sensitive and can pick up scratches that can easily be sanded out.
     
    1 person likes this.
  5. F1mad

    F1mad Member

    Messages:
    32
    Joined:
    Aug 24, 2011
    Location:
    Bicester
    Car:
    C180 elegance
    It all depends on the thickness of the clear coat the newer cars have very thin clear coat as a way of saving weight and money on production costs, trust me I've been in the body repair trade for 27yrs
     
  6. withey

    withey Hardcore MB Enthusiast

    Messages:
    134
    Joined:
    Jun 20, 2010
    I read a very long thread on detailing world about stone chip and scratch repair. The trick is to fill in the chip or the scratch with paint then sand off the excess paint to leave level with the rest of the car.
     

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