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8 Comments

  1. psyentologists on

    You have Slime in your tube. It’s the original sealant. You can buy it as an additive or buy tubes which come pre-Slimed. Nothing to worry about, except that it can make a mess. 

  2. Jumpy-Birthday8446 on

    As others say, it’s a Slime tube, and the goo clogging the valve is a known issue and why many people ditch them.

  3. ZestyChinchilla on

    Slime is terrible. It’s mediocre at best as a sealant, and it makes it impossible to patch a tube with that shit in it — its chemical composition breaks down rubber cement and it will seep under patches. Every single tube I’ve ever patched that had Slime in it had the patch fail within a day or two, sometimes just hours.

  4. It’s tire sealant. If it got inside your valve core when you deflated your tire, it might cause it to remain stuck open. If you use tube sealants, you should buy a pack of spare valves, they’re dirt cheap

  5. Fearless-Quantity-84 on

    Slime tubes come with green valve caps, to warn you… but they don’t keep them usually, because valve caps go missing all the time.

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