Ultimate Tubeless Sealant uses FiberFoam® technology to harness the power of carbon fiber to seal up to 7mm punctures without losing pressure. SILCA Ultimate Tubeless Sealant uses the power of a foaming latex formula combined with chopped carbon fibers to boost sealing power even at higher pressures. Starting with a clean, tubeless tire, use the 'pour in' method when installing on a tubeless rim. The quick sealing power makes it impossible to use a syringe or through the valve stem. When Silca says they can seal a 6mm, they mean it. The key is the carbon fiber that rushes to a puncture or open source and creates a fiber dam coagulant for a extremely effect seal. Every three months, it is recommend to use the Ultimate Tubeless Sealant Replenisher (sold separately). This maintenance can administered through the valve stem and refreshes the sealant. 

• 8 oz Bottle
  
• Effective down to 10F/ -12C
  
• Seals up to 7.5mm holes for up to 6 months
  
• Must be poured into tire during install
  
• Not injector compatible (It seals holes bigger than your valve)
  
• Use Replenisher every 90-120 days for best performance
  
• 6, 9, and 12mm recycled carbon fibers are dispersed evenly by foaming latex to create ultra strong seals
• Made in the USA