Muc-Off No Puncture Hassle Tubeless Sealant 1L — Pink, UV Tracer & Fast-Sealing up to 6mm

Muc-Off No Puncture Hassle 1L is a high-performance tubeless tyre sealant that instantly seals holes and tears up to 6mm while adding a UV-visible tracer to reveal unseen punctures.

Designed with input from pro downhill and peloton teams, this lightweight liquid sealant combines fast-acting latex polymers with engineered micro-particles to fill large cuts, slow leaks and porous casings. The formula stays fluid and effective across a wide pressure and temperature range, rinses off easily with water, and is compatible with tubeless-ready and full UST wheels. Packaged in a rider-friendly pouch that mates with Presta valves, the 1 litre size is ideal for workshops, group maintenance, or multiple emergency top-ups on the trail.

How quickly does it seal a puncture on a ride?

The sealant works immediately on small punctures and forms robust seals on larger tears within seconds to minutes, depending on hole size and wheel rotation. Its engineered latex creates an instant skin while the heavier particles lodge into the gap to reinforce the closure.

• Seals holes and tears up to 6mm in diameter.
• Immediate skin formation from latex polymers for rapid stoppage of air loss.
• Heavier particles fill larger cuts and bead/rim gaps for durable sealing.

Will it work with my tubeless-ready rims and different pressures?

Yes — the formula is compatible with both tubeless-ready and full UST systems and performs across a broad pressure band. It remains effective from low psi used in downhill and enduro to higher pressures used on road setups.

• Suitable pressure range: 15psi to 120psi.
• Compatible with tubeless-ready and UST wheels/tyres.
• Safe, non-corrosive formula that rinses clean with water.

How long does the sealant last inside a tyre and how is puncture detection handled?

In temperate climates the sealant can remain active for up to six months without balled-up residue, providing long-term leak protection. It includes a UV-reactive dye so you can quickly scan for hidden punctures under a UV torch after a ride or during maintenance.

• Effective lifespan: up to six months in temperate conditions.
• Contains UV tracer dye for easy puncture detection under UV light.
• Formulated to resist clumping and provide consistent coverage.

What practical advantages does the 1 litre pouch offer for riders?

The 1 litre size balances workshop capacity and portability: it supplies multiple tyre doses for teams, mechanics or frequent riders while still fitting a toolkit for trail top-ups when used with the Presta-compatible pouch nozzle. Larger volumes reduce packaging waste and lower per-dose cost for heavy users.

• Pouch designed to mate with Presta valves for quick top-ups on the go.
• Available in 140ml, 1L and 5L sizes to suit single riders or teams.
• Larger bottles reduce waste and cost per application for frequent maintenance.

Who is this for: Muc-Off No Puncture Hassle 1L is aimed at serious cyclists, mechanics and race teams who need a dependable, long-lasting tubeless sealant that handles big hits and speeds diagnosis with UV detection. It’s well suited to downhill, enduro and road riders who want a professional-grade, easy-to-use sealant that performs across a wide temperature and pressure range.