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Thread: ABS sunlight exposure

  1. #1
    DIY Junior Member AverageMe's Avatar
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    Oct 2009
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    Default ABS sunlight exposure

    Hi,

    does ABS deteriorate if exposed to sunlight?


    TIA,
    Anthony

  2. #2
    DIY Junior Member Salesdog's Avatar
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    Cellular core abs deteriorates due to uv exposure, the foam deteriorates, however abs wont, use the solid abs for roof vent penetrations...

    Edit: for clarity, there are two types of abs pipe you can buy, the cellular core, which has the foam inside two layers of real abs, and the real solid abs, the latter is which you want if you are going to experience any exposure to uv...

  3. #3
    Plumber jimbo's Avatar
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    The black color is achieved with carbon black additive, which is UV inhibitive. Heat, but not UV, may affect the foam core, but it is widely used around here for all residential, including the VTR. No worries mate.

  4. #4
    Moderator & Master Plumber hj's Avatar
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    Default Abs

    You WILL use whatever material the supply houses carry, and they do NOT carry both foam and solid core pipe. Here, the painters are supposed to paint the roof penetrations.

  5. #5
    DIY Junior Member Salesdog's Avatar
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    Quote Originally Posted by jimbo View Post
    The black color is achieved with carbon black additive, which is UV inhibitive. Heat, but not UV, may affect the foam core, but it is widely used around here for all residential, including the VTR. No worries mate.
    Never heard of that before, The inspectors here insist on solid abs due to the UV and I have seen completely deteriorated cellular abs. Makes me curious if it is due to heat alone, do you have any links to where I can read about the carbon black additive? And more interestingly, about UV not attacking the foam?
    Last edited by Salesdog; 10-27-2009 at 06:56 PM.

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