After 2.5 years of relentless innovation SILCA Ultimate Tubeless Sealant is here to perfect puncture protection, it now combines pro-level performance with everyday usability. With a groundbreaking blend of natural and synthetic latex, optimized carbon fiber strands, and advanced foaming agents, this sealant seals 7+mm punctures, lasts over 6 months, and is CO2 safe-all while being easy to inject through the valve. Race-tested and rider-approved, it's the ultimate solution for cyclists who demand the best.