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PVC or CPVC: Best Abrasion Resistance?

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  • PVC or CPVC: Best Abrasion Resistance?

    I have been replacing the broken feet of my shop chairs with PVC pipe tees.



    I am about to do the third pair now and have purchased two 1/2" tees for the job. But while at the store I wondered if I had chosen the best ones for the job. The CPVC fittings seemed to be about the same size or wall thickness but I don't know if there is any difference in the mechanical properties, specifically the abrasion resistance. I have noticed that the first pair that I used in the photo above have begun to wear to a noticeable amount. Does anyone have any idea if there is any significant difference here?
    Paul A.

    Make it fit.
    You can't win and there is a penalty for trying!

  • #2
    That's a nifty idea especially for lawn use but I wonder why you don't use end caps instead of tees for cement floors. I would be concerned with side loading splitting the vertical portion if weight is placed one side of the tee like on broken/uneven concrete or a bit of refuse.

    CPVC is more brittle and will probably crack on uneven surfaces even faster. Wear may not be noticeably different but I would think the more compliant PVC would be more durable and stable. Plus, I don't care for the creme color. Too many Earth tones in the shop might lead to the wimmin' folk moving in.
    _________________________

    Eddie "Thread Killer" daGrouch (YouTube channel)
    Smithy CB-1220 (Clark CL500M)

    Sometimes ya gotta re-invent the wheel to learn how to make wheels.

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    • #3
      Are the sizes of the T's the same? If you've got a good fit with PVC, you may not get the same fit with CPVC. CPVC is distinctly thinner than PVC for the same size pipe, and as I understand it they're designed to not couple together because of the different properties.

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      • #4
        I used walking stick ends on my old draughtsmans stool, they have lasted the concrete well, inventive solution all the same
        Mark

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        • #5
          daGrouch,

          I tried standard replacements but they broke almost faster than the originals. End caps? Well, I wanted a broader area of contact to distribute the load from my fat a##. The ones pictured have lasted for over two years so it seems to have been a good choice.

          Puckdropper,

          They didn't just fit. I had to drill them to size.



          Then I used epoxy to hold them in place.
          Paul A.

          Make it fit.
          You can't win and there is a penalty for trying!

          Comment


          • #6
            Sounds like the regular PCV is probably best. Thanks.
            Paul A.

            Make it fit.
            You can't win and there is a penalty for trying!

            Comment


            • #7
              Get some schedule 80 tee's, they will have a thicker wall thickness and be dark grey in color.

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              • #8
                If you're ok using pvc for the feet, then maybe some solid maple would be a better answer. You could buy some dowel and still use the hole saw to prep the diameter.
                I seldom do anything within the scope of logical reason and calculated cost/benefit, etc- I'm following my passion-

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                • #9
                  It's a Wal-Mart, el-cheapoo chair. Not worth that much effort. My $0.33 PVC Tees will be about right.



                  Originally posted by darryl View Post
                  If you're ok using pvc for the feet, then maybe some solid maple would be a better answer. You could buy some dowel and still use the hole saw to prep the diameter.
                  Paul A.

                  Make it fit.
                  You can't win and there is a penalty for trying!

                  Comment

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