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  1. #1
    Join Date
    Aug 2011
    Location
    Bennett (Denver metro), Colorado
    Posts
    1,394

    Default What is this material?

    I see this about once a year. I have never confirmed what this gray metal tubing is.
    tubing1.jpgtubing2.jpg

    Please, tell me what this stuff is?

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  2. #2
    Join Date
    Mar 2012
    Location
    Lansdale, PA
    Posts
    876

    Default Re: What is this material?

    Looks like tinned copper. Never saw it before.


  3. #3
    Join Date
    Aug 2011
    Location
    Bennett (Denver metro), Colorado
    Posts
    1,394

    Default Re: What is this material?

    Quote Originally Posted by Mark Reinmiller View Post
    Looks like tinned copper. Never saw it before.
    I can't find any examples of copper tubing tinned on the exterior, but I agree that that's what it looks like. Interesting that no one else has commented, which indicates that it may be very rare.

    If you choose not to decide, you still have made a choice.

  4. #4
    Join Date
    Feb 2008
    Location
    New York
    Posts
    869

    Default Re: What is this material?

    When sweating copper, the pipe is wiped off to remove the excess flux, otherwise the area will green. If there is also excess solder it will adhere. I think this plumber was on a mission (or was smoking pot).

    I have seen exposed copper tinned in order to change the appearance.

    Steven Turetsky, UID #16000002314
    homeinspectionsnewyork.com
    eifsinspectionsnewyork.com

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