MTB Tubeless Sealant, 1L | Advanced Tubeless Tyre Sealant with UV Dye, Seals Holes up to 6mm, Lightweight Formula for Mountain and Enduro Bikes

Muc-Off No Puncture Hassle Tubeless Sealant is hands down one of the best sealants I’ve used for my MTB. It delivers on its promise and keeps me riding worry-free! Why It’s Awesome: ✔️ Seals Punctures Fast – Instantly plugs holes up to 6mm, keeping my rides smooth and uninterrupted. ✔️ Long-Lasting Formula – Stays effective for months without drying out too quickly. ✔️ Works in All Conditions – Performs well in both hot and cold weather, ideal for year-round riding. ✔️ Easy to Apply – The included nozzle makes it mess-free and simple to pour directly into the tire. ✔️ UV Detection Technology – Helps spot leaks so I can be sure my tires are properly sealed. ✔️ Ammonia-Free & Safe – Won’t damage my rims or tires, unlike some other sealants. I’ve taken this sealant through rocky trails, muddy tracks, and rough terrain—it never lets me down! If you're running tubeless, this is a must-have. Highly recommend! 🚴‍♂️💨 Works like magic!

I've been using Muc-Off Tire Sealant for a few months now and it's exceeded my expectations. Installation was quick and mess-free thanks to its smooth consistency, and the UV detection feature is a clever touch for spotting any issues early. What really impressed me was how quickly it sealed punctures—I hit a thorny section on a trail ride and barely noticed the leak before it sealed up within seconds. No pressure loss, no stopping, just confidence to keep going. It’s lightweight, eco-friendly, and doesn’t clump like some other brands I’ve tried. Highly recommend it to anyone who wants a reliable sealant that just works when you need it most!

Superb stuff easy to install and works very well as long as you regularly check it

Overall, it does the job, but it’s much more liquid than other sealants I’ve used. It seals small punctures well, but for larger ones, it doesn’t always work as effectively as thicker sealants. Application is easy and mess-free, and the UV detection is a nice touch for spotting leaks. However, because it's more watery, it tends to pool in the tire rather than coat it evenly, so I find myself shaking the wheel more often to get proper coverage. Overall, it’s decent and works most of the time, but if you’re used to a thicker sealant, this one might take some getting used to. Probably best suited for smaller punctures rather than bigger gashes.

Well impressed with this, previously always Stans then the orange sealant. Needed same day delivery so took a chance. Nice big bottle, its thick ( one review says its runny🥴) And easy to spot where your holes are. Bought a bike from Ebay with a puncture. Tyre was full of slits and holes. Easy to spot where it was filling.

Had a flat in my tyres because the sealant ws dry and when I filled it up it caught the puncture straight away

My 12 year old boy used this product all by himself, in my living room! Luckily it made no mess and was easy to use. Fits straight onto the presta valve and you just squeeze it in. Brilliant product and now part of his bike maintenance kit. Great value for money as a lot left over.

Bought this as an alternative to my usual tubeless brand Stans. This is too thick and gloopy. Doesn’t flow very well and consequently I don’t believe seals as efficiently. All used now but won’t buy again.

I’ve tried all the popular sealants and this one is the best for the higher pressures of road bike tires. You and your bike don’t get sprayed, seals really fast. Super easy to clean, just scrape it out with a spoon and hot water. Usually lasts about 5 months. And of course it works great for MTB tires.

Bekanntes Produkt, bekannte (Top-) Performance. Schnell und zuverlässig geliefert.

Great sealant other than the color. Total joke. Works amazing. Great value for the money. Like all sealants just don’t make a mess and it’s not messy. Good thickness. It saved me on my rim tape leaking long story but I prefer muc off rim tape now. I suggest 20 more ml than you think you need. It’s worth it.

Good product no problems with it.

Works great...