Refresh Tubeless Sealant

Tires
Time: 10–15 minDifficulty: 2/5
DIY Friendly

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Steps

  1. Check for Dryness: Rotate your wheel and listen for a "sloshing" sound. If it's silent, your sealant has likely dried into a "latex monster" or "booger" inside the tire.
  2. Position the Valve: Rotate the wheel so the valve is at the bottom (6 o'clock position). This allows any remaining liquid sealant to settle away from the valve.
  3. Remove Valve Core: Use a valve core removal tool to unscrew and remove the core. This opens a direct path into the tire.
  4. Inspect the Core: Check the valve core for dried sealant clogs. Clean it out with a pick or replace it if it's completely blocked.
  5. Inject Sealant: Using an injector or a small bottle with a thin tip, squeeze the recommended amount of fresh sealant (usually 2–4 oz depending on tire size) directly through the valve stem.
  6. Replace Valve Core: Hand-tighten the valve core back into the stem. Don't over-torque it.
  7. Re-inflate: Use a floor pump to bring the tire back to your preferred riding pressure.
  8. Distribute Sealant: Spin the wheel and shake it side-to-side to coat the entire interior of the tire with the new sealant. This ensures any small leaks are sealed immediately.

Tips

  • Sealant evaporates over time, typically lasting 3–6 months. Check it more often in hot, dry climates.
  • If you use an injector, rinse it with water immediately after use. Dried sealant in an injector is a nightmare to clean!
  • If your tire won't hold air even with fresh sealant, you may need to replace the rim tape or the valve stem itself.

What You'll Need

Parts

  • None

Tools

  • Valve core removal tool
  • Sealant injector (optional) or a small measuring cup
  • Floor pump or air compressor
    Topeak

    Topeak

    Topeak JoeBlow Sport III Floor Pump

    $49.95Search

Consumables

  • Fresh tubeless sealant
    Stan's NoTubes

    Stan's NoTubes

    Stan's NoTubes Tire Sealant

    $19.00 - $35.00Search