SILCA Ultimate Tubeless Tire Sealant W/FIBERFOAM | Mountain Tires, Road, Gravel Tires | Bike Tire Sealant (16oz Sealant with Carbon)

Just the ticket for hard to seal tubeless tires. Especially road bikes. Read the directions as this is too thick to force it through the valve stem even with the core removed. Best tire sealant I have found.

I've ben running with Stan's in my tires for a while now, and I've been dealing with chronic leaks. Simply put, Stan's regular cannot handle the pressure of road tires. I've got latex all over my bike frame from the futile spewing of sealant as the wheel spins. Stans racing might be better but doesn't last; it's more of a race-day thing.The leaks Stan's couldn't fix are not massive punctures, but I'm on a road bike and I need my tires to hold up to 80 psi.The first time I put the Silca into the rear tire of my commuter bike and pressurized the tire, two leaks immediately popped. Small holes that Stans had never been able to seal at 80 psi. I spun the tire and the leaks were sealed. That was that. I've got miles on the tire now to prove that the leaks are sealed for good.When you pour the goop into your tire you see why you could never use an injector to push the sealant into your tire. There are lumps of bluish fibers are just waiting to clog something.Silca will clog any tool you use to inject the goo into your tires. The great part is that a dose of Silca can last for up to a year with periodic applications of the replenisher, which will work fine with an injector (the replenisher does not include the fibers). With that in mind, you may want to buy a smaller bottle of the sealant than you would other brands.

works much better than Stan sealant. I use on Conti GP5000 STR road tires with 60 PSI. Stan wouldn't plug even tiny holes at that pressure. Sealant would splash out until the tires goes down to 30 PSI then the Sealant would stop the leak. Next inflation, hole would open again. Stan is a garbage sealant for road tires.Silca is much much better. only drawback is you cannot inject it thru valve core, you have to poor in the tire. Its actually faster, but can be messy.

I got out my syringe that I've used before with Stan's tubeless latex with no trouble.I tried to suck the fluid into the syringe from the bottle, but the carbon fibers immediately clogged the hose. So I back flushed the fluid back into the bottle until the syringe was empty.Since I couldn't suck it in, I opened the syringe and poured the liquid into it. When I started pushing the liquid into the tube the fibers again quickly accumulated at the outlet of the syringe and clogged it.I found that by repeatedly pulling the plunger out to clear the clog and then beginning to push again, I was able to get the fluid in over the course of about 10 minutes. (this should have taken about. a minute)Boy is it a pain in the butt to put in. But it's difficult because it seems to be effectively sealing a hole that is probably 3 mm across. (huge). I have no doubt that those pain in the butt carbon fibers will make this stuff seal very very well.

Ce produit contient des fibres qui visent à le rendre plus performant en bouchant les trous/perforations. Ces fibres rendent son utilisation impossible avec une seringue. La seringue se bouche et les fibres bouchent aussi les valves de gonflage. J’ai dû tamiser le produit pour en retirer les fibres afin de l’utiliser. Je déconseille ce produit.