Saxophone Forum


by dhopson
(8 posts)
9 years ago

Hard rubber discoloration

I have a Selmer hard rubber mpc for my sop that is less than 3 years old, but has turned that lubberly milk chocolate color. Is there a way to get the black back?

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  1. by thefletch
    (1 post)

    5 years ago

    Re: Hard rubber discoloration

    so i use an old otto link hard rubber of my teachers and its looking rancid so i cleaned it in warm water and it discolored, and i have been freaking out and i just used "F21" tire cleaner cause it says it will clean rubber and is non-acid and non-toxic so i tried it and it took almost all the color away and if u use it with a soft bristle brush it helps too and so far it is almost all off. hope this helps. :)

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    1. by kelsey
      (802 posts)

      5 years ago

      Re: Hard rubber discoloration

      Fletch, this was posted in 05. Don't you think you are a bit late with your advice.........Kelsey
      Barry Kelsey

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  2. by saxall60
    (29 posts)

    5 years ago

    Re: Hard rubber discoloration

    Turned chocolate ? your are lucky, my teacher gave me one old which was green as military, with a very bad taste. I washed up with cold water and soap but it stay dark green !

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  3. by connsaxman_jim
    (2336 posts)

    9 years ago

    Re: Hard rubber discoloration

    "I have a Selmer hard rubber mpc for my sop that is less than 3 years old, but has turned that lubberly milk chocolate color". That, my friend is because it is a Selmer piece and it's not made of hard rubber, but rather.....fossilized SHIT!, and that is the reason for the brown color! Ok, I'm joking! Come on, laugh! My guess is that this is a chemical reaction to the acid in your saliva. Try cleaning the mouthpiece with liquid dish soap and a tooth brush. You'll want to clean your mouthpiece with soap and water whenever you're done using it. I would also be sure to swab your horn a couple times and wipe it down with a cloth too.

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    1. by definition
      (963 posts)

      9 years ago

      Re: Hard rubber discoloration

      Haha, I like your analogy on the selmer piece. Actually, the discoloration is something that eventually will happen to every rubber mouthpiece, sometimes quicklyi dont have a rubber piece over 10 years without some type of discoloration. Dont worry about it though, it wont hurt you, or the performance of the piece Though if it concerns you, spray paint it!!

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      1. by someguy
        (80 posts)

        9 years ago

        Re: Hard rubber discoloration

        Just make sure the spray paint isnt lead based. Not good!

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        1. by west
          (242 posts)

          9 years ago

          Re: Hard rubber discoloration

          but make sure the paint is very toxic. If i'm lieingn i'm dieing I do love the smell of the toxins. Paint, markers, and gasoline, actually. I find it pleasing

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        2. by dhopson
          (8 posts)

          9 years ago

          Re: Hard rubber discoloration

          I promise, only the good stuff ;)

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      2. by sax_maniac
        (984 posts)

        9 years ago

        Re: Hard rubber discoloration

        Hard rubber oxidizes and discolors - particularly if it is exposed to lots of UV. Different compositions of hard rubber oxidize more than others, so some pieces will turn more quickly than others. The only way to get the shiny black back is to buff off the very thin layer of oxidized material, though I don't advise you doing that yourself unless you are prepared to throw the piece away if you screw up the tip, rails, or table.

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        1. by Tranesyadaddy
          (279 posts)

          7 years ago

          Re: Hard rubber discoloration

          I've restored a few old and discolored rubber mpc's to like-new with a bit of old towel and some toothpaste. it has a very mild abrasive effect so you can really go at it without worrying abot the lay or tip. you know it's working when the towel turns brown.

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          1. by Tranesyadaddy
            (279 posts)

            7 years ago

            Re: Hard rubber discoloration

            lol @ west. I always smell the gasoline cap when re-fuelling.

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            1. by JBTSAX
              (364 posts)

              7 years ago

              Re: Hard rubber discoloration

              Washing an old hard rubber mouthpiece in hot water seems to speed up the color changing process. Cold water works best. I second the buffing suggestion. Following another tech's advice I soaked a badly discolored mouthpiece in full strength Clorox for 30 minutes prior to buffing. It worked beautifully on one piece and only moderately well on another. It is possible that the chemical compositions of the materials are different for different pieces. John

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            2. by Tranesyadaddy
              (279 posts)

              7 years ago

              Re: Hard rubber discoloration

              I think so. I've got a vintage soloist that turns brown, and a 'vintage' C** that turns green.

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            3. by Tranesyadaddy
              (279 posts)

              7 years ago

              Re: Hard rubber discoloration

              an S80 c** that is. nice quality ebonite, it just needs a little help from the mouthpiece guys.

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            4. by CountSpatula
              (602 posts)

              7 years ago

              Re: Hard rubber discoloration

              Tranesyadaddy it may help to wait and think before you hit the post button...you double post more than anyone I know, hehe.

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            5. by Tranesyadaddy
              (279 posts)

              7 years ago

              Re: Hard rubber discoloration

              Hey, don't cramp my style.

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            6. by CountSpatula
              (602 posts)

              7 years ago

              Re: Hard rubber discoloration

              Aiiight. ;)

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