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Tubeless Sealant 500ml



C02 compatible

Seals up to 6mm holes

Operating pressures: 15 to 120 psi

Operating temperature: -20°c to 50°c

Seals porous tyres and bead/rim gaps


Road 30 – 45ml

Cyclocross 60 – 75ml

26” MTB 60 – 80ml

27.5” MTB 70 – 90ml

29” MTB 100 – 120ml

*Quantities quoted per tyre. For wider rim/tyre combinations and/or additional puncture protection we recommend adding up to 30ml more sealant to the above quantities

As used by the World’s no.1 Downhill MTB Team, the Santa Cruz Syndicate, Peaty’s tubeless sealant is an ammonia-free, non-hazardous, latex-based tubeless tyre compound. Our sealant lasts up to 6 months in the tyre in temperate climates*, won’t ball up in the tyre and is easily washed out with water.

Our lightweight formula seals quickly and effectively, while our biodegradable glitter platelets take care of holes and tears up to 6mm. added corrosion inhibitors prevent degradation of tyres and rims.

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Hell no! No micro-plastics or microfibres here… The platelets in our sealant are BioGlitter made from a special form of cellulose from hardwoods, primarily eucalyptus sourced from responsibly managed and certified plantations operating to PEFC™ standards. They work like platelets in your blood, building up behind holes to help our fast-acting sealant form an even stronger bond with the rubber in your tyre.


Make sure you thoroughly clean the inside of your tyres of any dirt, oil and other sealants before you first set up tubeless. New tyres are often coated on the inside with residual chemicals from the manufacturing process (specifically release agents) which can react with tubeless sealant and cause it to solidify prematurely.

Let the tyre dry fully after cleaning and wipe the tyre with Isopropyl Alcohol or our Disc Brake Cleaner before applying sealant.

Tubeless tyres rely on a thin lining of butyl rubber on the inside of the tyre to hold air (and sealant). Some new tyres (especially very thin/lightweight tyres) can have tiny imperfections in this lining making the tyre slightly porous so it is normal for new tyres to deflate slightly after the first installation.

Porous tyres may also absorb some sealant within the first few riding hours to help seal these tiny holes. In severe cases, you may even see these small dots of white fluid coming out of the sidewall of your tyre. This is fairly normal and should seal within 24hrs but if your tyre continually leaks out of the sidewalls then contact your tyre manufacturer as there may be a larger fault with the tyres construction.

It is best to check your sealant levels after two weeks of application and top-up any lost fluid if required.