WTB went through five different formula revisions to ensure TCS Tubeless Tire Sealant can quickly and confidently repair ¼” (6mm) punctures. The unique formula cures sealant particulate within the puncture to create a flexible, long-lasting repair. TCS Tubeless Tire Sealant is optimized for temps down to 15°F (-9.4°C), which increases sealing performance without altering the formula for extremely cold conditions. Synthetic latex minimizes the risk of allergic reactions while also keeping the sealant fresh for many months of riding.