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Stan's NoTubes
Tubeless Sealant

4.5 out of 5 stars
6 Reviews

Style & Size:


Tubeless Sealant

If tubeless is the new black, Stan's NoTubes Tubeless Sealant is a classic secret-agent tuxedo. Just pour some of this milky goo into your tubeless-compatible tires, pop them onto the bead, and spin 'em around to get an even coating that will protect you from leaks and punctures all the way up to 1/4in. It makes it safer and easier to run tubeless tires at low pressure, and can work with wheels designed to be run tubeless or wheels that have been converted to accommodate a tubeless setup. Sharp rocks, thorns, and broken glass won't ruin your ride anymore, and the ability to ride at lower pressures will increase grip when you're in slick terrain.


  • Tire sealant to get tubeless tires ready to roll
  • Stan's formula helps seal leaks up to 1/4in
  • 1 quart will last through numerous tire changes
  • Stan's recommends 2-4oz per tire, depending on width
  • Item #SNT0013
1 quart
Manufacturer Warranty
2 years

Overall Rating

4.5 based on 6 ratings

Review Summary

1 Stars - 0 reviews
2 Stars - 1 reviews
3 Stars - 0 reviews
4 Stars - 0 reviews
5 Stars - 5 reviews

Fits True To Size

Screen reader users: the following list provides a visual scale to illustrate the product fit. Please refer to the heading above for the fit type in text.
Runs smallTrue to sizeRuns large

What do you think about this product?


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5 out of 5 stars

December 11, 2023

My favorite sealant

I've used it several times

This is my favorite sealant. Cleans up easily, has yet to not seal a puncture, and is usually readily available at most bike shops if I need to grab a bottle to top up for some reason.

Justin t
5 out of 5 stars

March 15, 2021

No More Flats

I've used it several times

Used this on my gravel bike and haven't had a flat since. Update: 3/15/21 Still no flats!

Dustin H

Originally reviewed on Backcountry.com

5 out of 5 stars

February 1, 2021

Terrific Product

I've put it through the wringer
5' 10"

I put 5 ounces of this sealant in each tube. The only way I can get a flat is with a sidewall tire failure. Only if this happens will the sealant not prevent a flat. That can happen at any time, especially if you ride into a deep pothole. Any failure of the tube and this sealant will plug it. It makes no sense to ride with any back up tubes as long as I have sealant in my tubes. The sealant lasts about 5-6 months and I replace my Continental 4 Season tires and tubes every 2500 miles. After 2500 miles the tires are more prone to fail, especially on the sidewall areas. What is amazing to me is all of these experienced cyclist who ride without any knowledge of sealant. Make sure to get removable valve cores and load up your tubes with sealant. I go on 75 mile rides with no back up gear, no saddle pack because I trust this product. I had one flat in the past 3 years and it was due to a sidewall tire failure. That's 30k + miles with one flat.

Dean D
5 out of 5 stars

November 20, 2020

Great stuff

I've put it through the wringer

My go-to sealant, works great.

Jason T

Originally reviewed on Backcountry.com

5 out of 5 stars

May 18, 2020

Works great

I've put it through the wringer

Always have some of this on hand. Sealant dries out/gets nasty over time so, as a part of my monthly service, it's good to check the status of the sealant in my tires. Stan's, for me, is the only way to go.

Mike N

Originally reviewed on Backcountry.com

2 out of 5 stars

May 13, 2020

Not Sold On Stans

I've put it through the wringer

Had my first flat ever since going tubeless and 2 sets of tires. My first time using Stans.


Originally reviewed on Backcountry.com