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  1. #1
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    paint hardness and rock chips

    someone on another forum told me that hard paint tends to get rock chips in it easier. anyone ever heard this? also is there other ways to tell how hard or soft the paint is?

  2. #2
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    Re: paint hardness and rock chips

    Well, although this isn't universally true, generally things that are harder are more brittle. So you can draw the conclusion that hard paints would chip easier, but it's likely a lot more complicated than that. One could also surmise that a more brittle paint would get larger chips for the same impact, which could also be construed as hard paint getting rock chips easier.

  3. #3
    Super Member FUNX650's Avatar
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    Re: paint hardness and rock chips

    I'm always wary of what's promulgated
    on many/(most) other car-care forums...
    (MOL being one of the exceptions).


    •IMO:
    Different paint-systems' vulnerability
    to getting-chipped-by-rocks depends
    on several factors; here are just a few:
    -the size of the rock(s)
    -area of impact
    -speed of impact
    -angle of impact
    -whether it's SS; or BC/CC
    -flex-agents
    -etc.


    "Hardness" of Paint Indicators:
    •Note:
    I'll be going with (paraphrasing) what
    Mike Phillips has said on many occasions:

    -Instead of talking about the hardness
    of paint...it'd be more attune to say the
    "Workability" of the paint; that is:
    how easy/difficult is it to clean-up the
    paint's defects.
    -You won't know for sure how "soft/hard"
    any vehicle's paint is (ie: its Workability),
    until you begin to clean-up its defects.



    Bob
    "Be wary of the man who urges an action in which he himself incurs no risk."
    ~Joaquin de Setanti

  4. #4
    Super Member custmsprty's Avatar
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    Re: paint hardness and rock chips

    Quote Originally Posted by FUNX650 View Post
    I'm always wary of what's promulgated
    on many/(most) other car-care forums...
    (MOL being one of the exceptions).


    •IMO:
    Different paint-systems' vulnerability
    to getting-chipped-by-rocks depends
    on several factors; here are just a few:
    -the size of the rock(s)
    -area of impact
    -speed of impact
    -angle of impact
    -whether it's SS; or BC/CC
    -flex-agents
    -etc.


    "Hardness" of Paint Indicators:
    •Note:
    I'll be going with (paraphrasing) what
    Mike Phillips has said on many occasions:

    -Instead of talking about the hardness
    of paint...it'd be more attune to say the
    "Workability" of the paint; that is:
    how easy/difficult is it to clean-up the
    paint's defects.
    -You won't know for sure how "soft/hard"
    any vehicle's paint is (ie: its Workability),
    until you begin to clean-up its defects.



    Bob
    I'm glad I'm drinking a red bull and vodka right now as I read this, it actually makes sense after 3 of them
    2013 Genesis Coupe 3.8 Track Edition
    2015 Hyundai Sonata Limited, 2016 Pearl White Nissan Altima SR
    2019 Nissan Rogue SL

  5. #5
    Super Member FUNX650's Avatar
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    Re: paint hardness and rock chips

    Quote Originally Posted by custmsprty View Post
    I'm glad I'm drinking a red bull and
    vodka right now as I read this, it
    actually makes sense after 3 of them






    Bob
    "Be wary of the man who urges an action in which he himself incurs no risk."
    ~Joaquin de Setanti

  6. #6
    Super Member custmsprty's Avatar
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    Re: paint hardness and rock chips

    Quote Originally Posted by FUNX650 View Post






    Bob
    It'll take quite a few more before I get that one, never been into corn maze, fire me up some Tito's and Red Bull and I'm there
    2013 Genesis Coupe 3.8 Track Edition
    2015 Hyundai Sonata Limited, 2016 Pearl White Nissan Altima SR
    2019 Nissan Rogue SL

  7. #7
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    Re: paint hardness and rock chips

    i heard it on miguiars forum. all i know is some cars get no chips at all in 200,000 miles and others are absolutely hammered after two years

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