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Old Tubing

Bob91 Member Posts: 6
I have some tubing that is from 1984ish. The only info I can get directly off of the tube is: 3200 upc, sdr11, 180deg., 100psi, B1378, IAPMO IS 22-8-W8, 1/2"otc, 5/8"od, C 07-18-84.

The tubing is a medium grey color and is used for infloor heating in concrete.

What is it? Is it an oxygen barrier tubing? any info would be appreciated.




  • Mark Eatherton
    Mark Eatherton Member Posts: 5,853
    Sounds like Poly Suitylene

    er I meant Poly Butylene.

    It came in both barrier and non barrier tube, and if you can't identify it by manufacturer, you'd best treat it as non barrier tube.


    There was an error rendering this rich post.

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