what causes watermarking/streaking?

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  1. what causes watermarking/streaking? 
    #1
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    just washed car:
    soak with hose
    Bucket of warm soapy water and sponge wash
    rinse with hose and sponge
    wash with hose

    when the water is drying its leaking like watermarks and streaks, after shammying it the tinys bits of moisture left are leaving like tiny cloudy dots and you can see where the drops were.
    how can i stop it doing this?
     
     

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    That will be water etching. You need to wax and seal.
     
     

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    thanks, about to wax it anyway, i presume i wax straight over the spots and they will go away?
     
     

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    Should do...what wax are you using?
     
     

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    i got 5 litres of carnuaba wax (cheap stuff)
    or
    normal turtle wax (dark green bottle)
    or
    turtle wax extreme nano tech polishing wax
    http://www.halfords.com/webapp/wcs/s...egoryId_165527

    i also had lots of swirl marks when its dark and you catch the light reflecting on the car.
    ive tried a green t-cut colour fast on a small area and it just seems to swirl the paint worse and causes cloudy looking area visible in daylight. my car is non metallic dark green, BRG?
    Last edited by 318i; 07-06-2009 at 18:24.
     
     

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    You might want to look into paint correction using a machine polisher then.
     
     

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    just waxed with the turtle wax extreme nano tech polishing wax, 2nd time ive ever used it and it is utter turd. its a pita to get off and has no shine or gloss to it.
    going to use the cheap carnuaba wax on sunday as it gives a deep gloss, and start a 'project' post.
     
     

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    #8
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    now waxed with the cheap carnuaba wax and it was much easier to work with and a lot more gloss to it, pics in project forum
    http://www.bimmerforums.co.uk/forum/...6-318i-t17190/
     
     

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