Considering they’ve been making tubeless tires, rims, wheels, valves, and tape for a while, it was only a matter of time before WTB released a sealant of their own. The new ammonia-free TCS Tubeless Tire Sealant claims to repair ¼” (6mm) punctures with encapsulated fibers and crystalline particles. Learn more here…

After two years in testing and development, WTB finally rounded out their TCS system with an original formula TCS Tubeless Tire Sealant. The company claims it repairs ¼” (6mm) punctures by encapsulating fibers and crystalline particles within the puncture to create a flexible, long-lasting repair. TCS Tubeless Tire Sealant uses an ammonia-free, synthetic latex-based formula to seal punctures rather than rely on an evaporative effect that many ammonia-based formulas employ. WTB claims this makes it perform better in wet, unforgiving conditions where other sealants have trouble clotting due to minimal evaporation.

  • WTB TCS Tubeless Tire Sealant
  • WTB TCS Tubeless Tire Sealant
  • WTB TCS Tubeless Tire Sealant

TCS Tubeless Tire Sealant is only rated for temperatures down to 15°F (-9.4°C). Unlike other sealants that include more antifreeze to operate in temps down to 0°F or below, WTB didn’t alter their formula for extremely cold conditions. Instead, as their press material states, “accepting higher minimum temps allowed WTB to improve sealing performance by reducing the amount of antifreeze and replacing it with additional synthetic latex.”

TCS Tubeless Tire Sealant is available in four sizes; 4oz ($6.95), 8oz ($12.95), 16oz ($16.95), and 32oz ($27.95). All bottles are printed with measuring hash marks in both ounces and milliliters for pouring reference. TCS Tubeless Tire Sealant is currently available in Europe and will be available on bike shop shelves across North America this fall. Learn more over at WTB.com.

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