Silca Ultimate Tubeless Sealant
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Silca Ultimate Tubeless Sealant
Code: SIAMAC039ASY02
Silca Ultimate Tubeless Sealant
Silca Ultimate Tubeless Sealant combines the power of carbon fibre with a long lasting natural latex formula to achieve sealing properties beyond that of special race day formulas, while matching or exceeding the life expectancy of long-lasting formulas.  
The key is a high percentage fill of recycled, chopped carbon fibre strands which are held in suspension by the foaming action of the sealant within the tire.  Upon puncture, the sealant rushes to escape the hole, carrying thousands of carbon filaments which serve to dam up the opening, just like sticks of a beaver dam blocking a stream.  This dam of fibre collects more fibre and what was one large hole, is now turned into hundreds of smaller holes for the sealant to seal.  
Fiberfoam technology has proven to seal up to 7.5mm holes and cuts at gravel pressures and up to 5mm holes at higher road pressures.  Even better, the carbon fibre/latex plug formed at the puncture has proven to be more than twice as strong over time as latex only or latex with crystals or glitter.  
While most sealants claim they can plug holes up to 6+mm, they can also be injected into the tyre through the 3mm hole in your valve stem with some injectors using tips as small as 2mm.  The power of carbon fibre makes this impossible, Silca Ultimate Tubeless Sealant will instantly plug your injection syringe or your valve as the fibres stack up to block the opening.  In solving this issue, the Silca team has developed Ultimate Tubeless Sealant into a system that will save you time and money in the long run.  
The initial installation of Silca Ultimate Tubeless Sealant must be done by pouring into the tyre cavity rather than injecting through the valve.  However, unlike other sealants which must be completely replaced every 3-6 months, Silca Ultimate Tubeless Sealant has a special Replenisher which can be pumped through the valve and can extend the sealant life to well over 1 year depending on your climate. This means less wasted sealant, and less hassle over time as there is no need to remove the old sealant at each service interval, in many cases, the sealant may outlast the tyre.
  • The sealing power of race specific formulas (6+mm holes) with the longevity of long-lasting formulas (120-180 days)
  • FiberFoam® Technology uses a blend of 6mm, 9mm, and 12mm long carbon
  • fibers which are 400% stiffer than glass fibers with better dispersion
  • in the sealant to bridge punctures for faster sealing resulting in less air loss
  • Must be poured into tyre during tire install! Ultimate Tubeless Sealant will plug any syringe or valve hole you try to pump it through!
  • Effective down to 10°F / -12°C
  • Ultimate Tubeless Sealant available in three sizes: 8 oz, 16 oz, and 32 oz. Ultimate Tubeless Sealant Replenisher available in 4oz and 32oz size
MarkThis stuff hands-down beats every other sealant I've tried up until now. Had a descent sized nail-tack embed itself in my Pirelli P Zero. Removed it and span wheel, and in couple revolutions, it was sealed. After next ride, couldn't even see where hole had been after the little strands that stuck out a little after wore off, not that they were noticeable, as a bacon can be on a smooth road. Really thought I'd need a bacon to repair that, but not, sealed perfectly, and has done a 217km ride since, where at one point, I thought I heard something from rear. Stopped and saw a little sealant on the tyre, but nothing else. Pressure still same... carried out. OK, slightly inconvenient that you can't inject via the valve, and if you accidentally pump tyres when valves aren't at 12o'clock, you run risk of this stuff sealing them a bit. But for the puncture sealing ability of this stuff, it's what I'll be buying from now on. Please carry on stocking!