SILCA Ultimate Tubeless Tire Sealant, 500ml – Tubeless Bike Sealant Proactively Seals Punctures Up To 7.5 mm, Injectable Through Valve & Stays Liquid 6+ Months In All Weather Conditions

• FAST & EFFECTIVE: Quickly fills punctures up to 7.5 mm - 25% more coverage than conventional bicycle tire sealants. Works with all tubeless tires & valve cores. Proactively seals punctures by filling holes as they occur.
• FIBERFOAM TECHNOLOGY: Small strand carbon fibers create a strong 'fiber dam' for faster sealing with minimal air loss. These fibers are 400% stiffer than fiberglass, ensuring effective protection.
• EASY TO APPLY: Silca's tubeless bike tire sealant easily injects through the valve cores for mess-free install even with tires mounted (injector sold separately), or you can pour directly in the tire during install.
• HIGH PERFORMANCE: This mountain, gravel, and road bike tire sealant is CO2 safe & works in temps as low as 10 degrees F / -15 degrees C for all-season reliability.
• LONG-LASTING: The hybrid latex used in this tire foam fill stays liquid for 6+ months (weather dependent), to reduce frequency of sealant top-offs and replacement.

SILCA’s Ultimate tubeless tire sealant and injector (sold separately) is the perfect tire foam fill kit, engineered for cyclists who demand maximum performance with zero compromise. After 2.5 years of testing and development, this injectable tire sealant delivers unmatched sealing power and long-lasting protection for all bicycle types. It's designed to be precautionary, proactively sealing punctures as they occur. Formulated with proprietary FiberFoam Technology, this latex-based tubeless tire sealant uses short strand carbon fibers, 400% stiffer than fiberglass, to create a durable 'fiber dam' that seals punctures up to 7.5 mm in size. That’s 25% larger than what a conventional bike sealant can handle. It's also ammonia-free and safe for carbon rims and tubeless systems, giving riders full confidence on high-performance wheels. This tubeless bike tire sealant allows clean, easy application: inject through the valve anytime, even after mounting, or pour in the tire during install. The hybrid latex formula stays liquid for 6+ months in most conditions, reducing the need for frequent top-offs. Unlike many foam tire filler options, SILCA’s blend works down to 10 degrees F / -15 degrees C, making it ideal for year-round riders and pros alike. It's also CO2 safe, meaning it won't coagulate or lose effectiveness when exposed to CO2 for short durations during tire inflation. Whether you’re looking for a road bike sealant system or upgrading your general bike repair kit, SILCA delivers lasting performance and minimal mess.