Muc-Off No Puncture Hassle Inner Tube Sealant, 10 fl oz - Bike Tube Puncture Repair Sealant - Bike Tire Sealant for MTB/Road/Gravel Bikes

I give it 5 stars even though it allows me to select 3 stars. Longer lasting than other products.

Unless you have an obvious puncture and see sealant spray and stop is it really Working? I hope not to find out. I have had thorn, tacks and road ash flats in the past. When I set up new tires I installed Muc-off no hassle inner tube sealant. I have aprox 1500 miles on the tires and no flats. I have had some gashes that I found on inspection but no leaks.It takes a little patience to install the sealant through Presta valve stem. Just follow directions and go slow. Valve core must be removed. I will use this product in my other tube setups.

TLDR; Working with Presta? Get an injector.Sealant worked well with my own injector, but the tube it comes with wouldn't seal onto my inner tube's valve steam. Feels like it is meant for Schrader rather than Presta, but I haven't checked. Didn't see an adapter in my box. If it lasts as long as they claim I'll update to a 5 star.

Less than a week after installing the sealant, a screw went right through my expensive Tannus tire liners and pierced the tube. pulled the screw out, a little bit of foaming/bubbling at the spot and--Bam--sealed tire. I went on my merry way. Oh, and this was while the tire was damp because it was sprinkling out that day.Heads-up: once the sealant is in the tube, be sure to keep the stem/valve at the "12 o'clock" position until you've re-inflated the tube to the desired pressure. (this is to prevent the sealant from flowing down into the valve and sealing it as well.)

Arrived in poor packaging so the containwr had leaked half its contents in the packaging. This product works until you get a nail or nasty thorns in your tube, which is common here in Arizona. This package is good for 2 tubes. It is much better than Slime products.

Pretty good amount for 2 tires. Known for working well in sealing holes, and is thick enough to do it. Easy to put it in the tire via the tube that it comes with. Good smell for the product.

I had a small puncture on a tire a little over a year after I applied this stuff to the inner tube, which this stuff still sealed up, so it seems to last quite a long time.

Rode in the desert with cacti thorns. Thorns got in the tires and tubes, the sealant did an OK job sealing the holes around the thorn as I only had decently slow leaks (pump up a few times a day) instead of full flats. When removing the thorns, the sealant was unable to seal the holes (maybe 1mm in diameter? Not huge). Patches don't hold as the sealant works its way through the hole and slowly unglues the patch. So I wouldn't recommend this as a long-term solution if riding in an area where punctures are expected, such as the desert, but it did a decent enough job keeping me riding when otherwise I would have gotten a big puncture. For more typical riding, it probably does great at preventing small wires and little pieces of glass from causing punctures, but for thorns, this is at best a stopgap