Stans is my go to
"Stans is my go to for mountain bike tire sealants. I do prefer Orange sealant for my road bikes and gravel bikes but, the Orange sealant does dry out faster."

Overall rating: 4.9130435 / 5 from 46 reviews.
Review topics: [works, sealant].
"Stans is my go to for mountain bike tire sealants. I do prefer Orange sealant for my road bikes and gravel bikes but, the Orange sealant does dry out faster."
"Does what it says -- I had a valve that was iffy, because I've neglected to refill the sealant for about two years. After adding Stans, the valve is solid. The non-toxic nature is a big plus."
"Stand is hands down the best! Great product easy to use"
"Can't go wrong with Stans."
"There are other brands that add glitter, smells like flowers and the sealant is colorful but you can't go wrong with Stans no tubes sealant! Been using this on all my tubeless set ups and you can see it work immediately when you get small punctures. It does dry up so just make sure you keep check every 6 months or depending on your riding conditions."
"Works just as advertised"
"Stans is just so easy!"
"So far so good"
"Great product, sealant definitely works"
"There's a lot of sealant brands available but I see no reason to change what works so well for me."