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UV treatment is effective

Discussion in 'Gen 3 Prius Technical Discussion' started by CivicQc, Jun 12, 2010.

  1. CivicQc

    CivicQc The world needs more prius

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    Perhaps this was reported before - but I could not find any related thread.

    My watch is equipped with a UV sensor, and I just thought it would be a good idea to test how good the UV treatment of the Prius windows is.

    Conditions: sunny day, UV index: 8.2
    UV index measured inside the car through all windows indicated: 0.0

    Just thought you might be interested to know.
     
    #1 CivicQc, Jun 12, 2010
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  2. tumbleweed

    tumbleweed Senior Member

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    Re: UV treatment is efficient

    This .pdf file was posted by someone (don't remember who) on here a while back. It indicates what you measured was valid. Good to know.
     

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    #2 tumbleweed, Jun 12, 2010
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  3. Ogo

    Ogo Prius Owner since 2008

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    Re: UV treatment is efficient

    Actually most of the glass is quite good UV filter. ;)

    Try using your UV gadget by measuring UV index under other not so geeky glass stuff as Prius's one.
     
    #3 Ogo, Jun 13, 2010
  4. Thai

    Thai Prius Neophyte

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    Re: UV treatment is efficient

    Is it UV that destroys the interior materials?
     
    #4 Thai, Jun 13, 2010
  5. Ogo

    Ogo Prius Owner since 2008

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    Re: UV treatment is efficient

    Probably only one of the factors.

    I could find totally disintegrated plastics stuff which never saw sunlight, which was quite interesting discovery to me.
     
    #5 Ogo, Jun 13, 2010
  6. CivicQc

    CivicQc The world needs more prius

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    Re: UV treatment is efficient


    Today I tried my sensor measuring UV index through standard glass, 1/16th of an inch thick (1.6 mm).
    Measured UV index outdoor: 7.1
    Measured UV index through glass: 3.3
     
    #6 CivicQc, Jun 14, 2010
  7. hill

    hill High Fiber Member

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    Re: UV treatment is efficient

    The easiest way to see how great the UV film is on the windows is simply by wearing transitional sun glasses (glasses turn dark, the brighter the sun light). You'll find that transitions will remain 90% clear ... hardly darkening at all, as long as the windows are up. That said, I'm thinking the OP meant that the UV "is effective" rather than efficient.
     
    #7 hill, Jun 14, 2010
  8. dtuite

    dtuite Silverback

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    Re: UV treatment is efficient

    "I could find totally disintegrated plastics stuff which never saw sunlight, which was quite interesting discovery to me."

    I understand that ozone is pretty good at breaking down polymers. Makes one wonder about Plasmacluster.
     
    #8 dtuite, Jun 14, 2010
  9. tumbleweed

    tumbleweed Senior Member

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    Re: UV treatment is efficient

    I think some plastics are designed to be UV resistant, hope that's what is used in the car. Also darker colors are more UV resistant because the UV doesn't penetrate as far into the plastic.
     
    #9 tumbleweed, Jun 14, 2010
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