Downtube scarring

rokkala
rokkala Posts: 649
edited January 2010 in Workshop
Have noticed that on the underside of the downtube on my carbon bike there is a rough, black substance, little bit sparkly at bits too. I'm guessing its tar that was thrown onto there from hot days last summer.

Can't get it to shift with elbow grease. The old man had suggested paraffin, but he has never used it on carbon.

Anybody know if there is a safe method of shifting it?

Comments

  • hopper1
    hopper1 Posts: 4,389
    I wouldn't...

    Plenty of other products available from motor craft shops.
    Maybe try a motorbike shop.

    Ah, brainstorm... When I used to have motor bikes, I used 'Pledge' (any polish will do), to clean tar deposits off the forks & fairing etc.
    The propelent cuts the tar deposit, the polish leaves it nice and shiney!
    Just spray, wait a minute, then wipe off, repeat if necessary.
    Start with a budget, finish with a mortgage!
  • rake
    rake Posts: 3,204
    you can buy citrus degreaser for bikes. i would say its ok to carbon. parrafin may be ok but its not worth taking the chance .
  • rokkala
    rokkala Posts: 649
    Cheers.

    I'll give the polish a try and see how it goes

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