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Description
Unmatched Sealing Power, Now Injectable!
SILCA Ultimate Sealant (500ml) combines injectable Fiberfoam® technology with a hybrid natural and synthetic latex formula to deliver the highest level of longevity available along with unbeatable puncture sealing capabilities for tubeless tires. And now it's designed to be easily injected through valves with removable cores, eliminating the potential for mess.
SILCA Ultimate seals holes up to 7.5+mm, 25% larger than conventional sealants. Recycled carbon fibers form an interlocking "fiber dam" for increased surface area for faster sealing with minimal air loss. These fibers are 400% stiffer than fiberglass, ensuring punctures are sealed quickly and effectively.
The hybrid latex formula increases durability, extending performance life to up to 6+ months (depending on environmental conditions). It's also Winter-ready, effective even in the cold.
Features:
- Hybrid Latex Formula: Combines natural and synthetic latexes for superior durability and sealing power.
- Fiberfoam® Technology: Carbon fibers form a robust, interlocking "fiber dam" to seal punctures up to 7.5mm, 25% larger than standard sealants.
- Cold-Weather Performance: Effective down to 10°F / -15°C, ensuring year-round reliability.
- Now Injectable: Clean, efficient application via the tire valve—not mandatory to pour in during tire installation.
- Longevity: Lasts 6+ months, minimizing maintenance.
- CO2 Safe: Does not coagulate or lose effectiveness when exposed to CO2 during tire inflation.
- Injector Sold Separately.
- 500ml bottle
B-Stock - This product has one or more B-Stock units available. These units can be purchased at a discount (see option select). B-Stock units were returned from other customers and may have missing or damaged packaging materials. These units are otherwise as new. The full manufacturer warranty applies. Click Here for more information.
Specifications
Mfg PartNum: AM-AC-059-ASY-0101 | |
Category: Tire Repair | |
Reviews
This review is only valid for skinny road bike tires running high pressure (over 60psi).
I had hoped this sealant was the magic bullet, but alas no. I ride a road bike with 75 psi pressure in the tires. I've had three large punctures running this sealant. One of the punctures was a #6 wood screw, so maybe a 5mm hole. All three sealed with some air loss and spewed sealant everywhere, but I could ride home so yay! However, when I tried to pump the tires to 75psi sealant wept out of the hole. It seems that this sealant will plug big holes up to about 40-50psi, but no more.
Yes, I tried waiting a couple of days and then pumping up to 75psi. No joy, sealant still oozed out of the hole. Finally, for all three large punctures I stuck in a Stan's Dart. Worked like a champ after the sealant had about 5minutes to react with the tail feathers of the Dart.
Moral of the story: This sealant plugs small holes and you won't get those aggravating slow leaks, but carry a Stan's Dart, Dynaplug, or bacon strip in the event of large punctures.
Just switched to Silca Ultimate because the reviews say that it will seal larger punctures and will last longer before needing to be replaced. Haven't had this sealant in my tires long enough to have a first hand opinion.
I've had good luck with the Silca sealants, it's very sticky and seals up almost anything even on a road tire for me. I like that this is injectable now, I don't have to break the bead of the tire to do the pour in method. Just go slow with the injector and it won't clog up with fiber bits.
I haven't had this long enough to test the 6 month claim, but if it lasts that long, this is a game changer. I can do a spring/fall switchout and be good for the year.
Would love to tell you about its sealing ability, but after several tough rides, I haven't had a puncture. I like that it isn't a neon color, unlike some brands, and is thicker, making setup and dismounting tires less messy.
I had two small punctures that took a long time to seal. A day or two later on my next ride they reopened. After this happened a couple times I ended up plugging both the holes. One the plugged holes started leaking a week or so later. Going back to Orange Sealant which worked well last year but has a short refresh period.
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