Muc-Off MTB Tubeless sealant 80ml

Muc-Off MTB Tubeless Sealant – Advanced Latex Formula – Seals Up to 6mm Holes – UV Dye Detection

Professional MTB/Enduro/Downhill Puncture Protection – Bamboo Fiber & Mineral Flake Technology, Non-Corrosive Formula, Lightweight – Commencal & Specialized Gravity Trusted**

Muc-Off MTB Tubeless Sealant represents cutting-edge puncture protection engineered specifically for mountain biking's harshest conditions. Formulated with advanced synthetic latex, natural mineral flakes, and bamboo fiber particles, this high-performance sealant seals holes up to 6mm and handles porous tires and bead gaps with authority. Featuring a unique UV detection system that highlights punctures for inspection, the non-corrosive, ammonia-free formula lasts up to 6 months and won't ball up inside tires. Works reliably from 15–80 PSI and -20°C to +50°C, this professional-grade sealant is trusted by Commencal and Specialized Gravity DH teams. Available in five sizes (80ml, 140ml, 500ml, 1L, 5L) with refillable packaging.

Key Features

Seals Up to 6mm Holes:

• Fills punctures up to 6mm diameter
• Covers thorns, glass, and sharp objects
• Handles porous tires effectively
• Seals bead gaps and rim interface
• Professional MTB puncture coverage
• Tested in brutal race conditions
• Real-world proven performance

Cutting-Edge Sealing Molecules:

• Advanced synthetic latex foundation
• Natural mineral flakes matrix
• Bamboo fiber reinforcement
• Professional polymer technology
• Instant bonding to tire walls
• Forms protective armor coating
• Racing-proven formula

Bamboo Fiber & Mineral Flake Technology:

• Natural biodegradable sealing particles
• Environmental responsibility built-in
• Fills larger holes and tears
• Professional eco-conscious engineering
• Project Green certified
• Sustainable puncture protection
• Modern formula innovation

UV Dye Detection System:

• Built-in ultraviolet highlighting
• Visible under UV light
• Easily identify sealed punctures
• Professional diagnostic capability
• Peace of mind for inspections
• Race-day confidence
• Real-time visibility

Non-Corrosive Formula:

• Safe on aluminum rims
• Won't damage tire walls
• Doesn't degrade valve components
• Professional durability assurance
• Extended equipment lifespan
• Reliable long-term use
• No maintenance concerns

Water-Soluble & Easy Cleanup:

• Washes off with water
• Simple post-ride cleanup
• No harsh chemical smell
• Ammonia-free formulation
• Professional safety standard
• Environmental responsibility
• Kit-friendly formula

Lasts Up to 6 Months:

• Extended duration in temperate climates
• Convenient maintenance schedule
• Every 750 miles approximate top-up
• No ball-up or clumping
• Forms thin protective layer
• Professional efficiency
• Practical maintenance intervals

15–80 PSI Working Range:

• Covers all MTB tire pressures
• 26" wheels (40–65 PSI)
• 27.5" wheels (35–60 PSI)
• 29" wheels (30–55 PSI)
• Downhill (50–80 PSI)
• Professional pressure flexibility
• Universal MTB compatibility

Temperature Range -20°C to +50°C:

• Winter riding capability
• Summer trail performance
• Extreme heat tolerance (+50°C)
• Cold weather functionality (-20°C)
• Year-round reliability
• Professional seasonal versatility
• All-conditions performance

Co2 Compatible:

• Works with standard CO2 cartridges
• Emergency field deployment ready
• Race-day quick inflation
• Professional flexibility
• Portable repair capability
• Quick-fix option
• Emergency reliability

Pro Team Racing Pedigree:

• Commencal DH team trusts it
• Specialized Gravity DH team uses it
• World's top downhillers endorse it
• Competition-proven reliability
• Elite-level testing
• Real race validation
• Professional athlete confidence

Lightweight Formula:

• Minimal added tire weight
• Professional weight optimization
• Doesn't compromise rolling mass
• Climbing efficiency maintained
• Acceleration unaffected
• Performance-neutral
• Pro-level engineering

Multiple Size Options:

• 80ml: Personal/emergency carry
• 140ml: Single tire fill
• 500ml: Regular users
• 1L: Frequent top-ups
• 5L: Team/professional refill
• Flexible sizing for all users
• Cost-effective at larger sizes

Refillable Packaging System:

• Refill smaller pouches from larger bottles
• Reduces plastic waste significantly
• Project Green certified
• Environmentally responsible
• Cost-effective long-term
• Professional sustainability
• Refill infrastructure available

Easy Presta Valve Application:

• Squeeze through Presta valve
• Or pour directly if unseated
• 2–3 minutes total application
• No special equipment needed
• No messy process
• Professional ease
• Trail-ready deployment

Professional Dosing Guidance:

• 26" MTB & 27.5": 60–75ml per tire
• Cross 700c: 60–75ml per tire
• 29" MTB: 105–140ml per tire
• Downhill: 120–140ml per tire
• Fill line markings on packaging
• Professional precision
• Optimized protection levels

Technical Specifications

Sealant Type: Water-Based Tubeless Sealant (MTB-Specific)
Primary Purpose: Puncture prevention and rapid sealing

Formula Composition:

• Advanced synthetic latex base
• Natural mineral flakes (biodegradable)
• Bamboo fiber particles (biodegradable)
• Water-based carrier
• Professional UV dye system
• Zero ammonia
• Zero natural latex

Hole Sealing Capability:

• Maximum Hole Size: 6mm diameter
• Bead Gap Sealing: Yes
• Porous Tire Sealing: Yes
• Tear & Rip Sealing: Yes (cutting-edge molecules)
• Professional MTB coverage
• Real-world tested range
• Competitive advantage

Performance Specifications:

• Working Pressure Range: 15–80 PSI
• Temperature Range: -20°C to +50°C
• Lifespan: Up to 6 months (temperate climates)
• Top-Up Interval: Every 750 miles (approximate)
• Storage Life: No expiration (proper storage)
• Freeze Point: -20°C (remains functional)
• Boiling Point: +50°C (safe range)

Application Specifications:

• Application Method: Presta valve or direct pour
• 26" MTB & 27.5": 60–75ml per tire
• Cross 700c: 60–75ml per tire
• 29" MTB: 105–140ml per tire (7 scoops or whole 140ml pouch)
• Downhill: 120–140ml per tire (8 scoops or whole 140ml pouch)
• Extra protection: Add up to 30ml optional per tire
• Professional dosing precision

Size Options & Pricing:

• 80ml Pouch
• 140ml Pouch
• 500ml Bottle
• 1L Refill
• 5L Refill

Environmental Specifications:

• Project Green Certified: Yes
• Biodegradable Formula: Yes
• Water-Soluble: Yes (washes with water)
• Refillable Packaging: Yes
• Plastic Reduction: Yes (refill system)
• Sustainable: Professional approach

What's Included

• Muc-Off MTB Tubeless Sealant (selected size)
• Professional pouch or bottle
• Application instructions
• Fill line markings (tire sizing guide)
• UV dye detection system
• Muc-Off quality assurance

Not Included:

• Tubeless valves (sold separately)
• Rim tape (sold separately)
• Tire installation tools

Perfect For

• Mountain bike enthusiasts
• Enduro race participants
• Downhill specialists
• Technical trail riders
• Aggressive terrain cyclists
• Anyone refusing punctures on trails
• Professional and competitive riders
• Multi-season adventurers
• Bike park regular attendees
• Serious recreational MTB riders

Why Choose Muc-Off MTB Tubeless Sealant

This sealant represents professional downhill engineering made accessible. Muc-Off engineered this specifically for MTB's unique demands after years of collaboration with the world's top downhillers and pro teams (Commencal, Specialized Gravity).

The cutting-edge sealing molecules and bamboo fiber formula handle 6mm holes—covering real-world puncture scenarios from thorns to trail hazards. The UV dye system means you can visually inspect sealed punctures under ultraviolet light, giving you confidence in your tire's integrity. The water-soluble formula is non-corrosive and ammonia-free, so there's no health concern or equipment damage. The 15–80 PSI range covers all MTB tire pressures without compromise.

The new formula (grey-blue, with visible bamboo fibers and mineral flakes) improves on the old pink version, distributing more effectively and sealing faster. At £4.50–£96 depending on size, you're paying for professional racing technology at accessible prices. The refillable system means you can buy a large size and refill small pouches for trail carry—reducing plastic while saving money long-term.

This is the sealant Commencal and Specialized Gravity DH teams choose. Now it's available for your trails.

This is the sealant serious MTB riders choose when puncture prevention is non-negotiable.

6mm Sealing Advantage

Why Coverage Matters on Trails:

Sealing up to 6mm means:

• Covers standard trail punctures
• Handles thorns effectively
• Seals sharp rock cuts
• Addresses bead gaps
• Protects porous tires
• Professional trail coverage
• Real-world puncture scenarios

6mm is where trail protection meets tire preservation.

Cutting-Edge Sealing Molecules

Why Professional Formula Matters:

Muc-Off's innovation:

• Advanced synthetic latex base
• Bonds instantly (within seconds)
• Creates protective layer before puncture spreads
• Professional racing trust
• Proven across brutal conditions
• Reliable under racing stress
• Elite-level reliability

Not standard latex—professional trail-hardened.

Bamboo Fiber & Mineral Flake Technology

Why Natural Particles Matter:

The eco-conscious approach:

• Natural mineral flakes (biodegradable)
• Bamboo fiber (renewable)
• Water-soluble cleanup
• Project Green certified
• Environmental responsibility
• Sustainable puncture protection
• Modern formula innovation

Tough on punctures, not the planet.

UV Dye Detection System

Why Visual Verification Matters:

The ultraviolet highlighting:

• Easily spot sealed punctures
• Inspect tire integrity
• Professional diagnostic capability
• Peace of mind assurance
• Race-day confidence
• Real-time visibility
• Safety verification

Know exactly where the sealant sealed.

15–80 PSI Performance Range

Why MTB-Specific Pressure Matters:

Works across all MTB tire setups:

• 26" wheels (40–65 PSI standard)
• 27.5" wheels (35–60 PSI standard)
• 29" wheels (30–55 PSI standard)
• Downhill bikes (50–80 PSI range)
• Professional flexibility
• Universal MTB compatibility
• No pressure limitations

Professional coverage across bike types.

6-Month Extended Duration

Why Long-Lasting Matters:

6 months in temperate climates means:

• Fewer complete replacements
• Professional efficiency
• Convenient maintenance cycle
• Every 750 miles approximate
• Top-up capability between replacements
• Cost-effective long-term
• Practical maintenance intervals

Lasts through multiple race seasons.

Pro Team Validation

Commencal DH, Specialized Gravity Trust:

These teams don't compromise:

• World-class racing standards
• Real competition testing
• Bike Park proving grounds
• Elite-level endorsement
• Competition-proven formula
• Professional athlete trust
• Real-world durability proof

If pro downhillers use it, so should serious riders.

Non-Corrosive Professional Safety

Why Formula Safety Matters:

Zero-corrosion design:

• Safe on aluminum rims
• Won't damage tire walls
• Doesn't degrade valve components
• Professional reliability assurance
• Extended equipment lifespan
• Years of service life
• No maintenance concerns

Equipment protection built-in.

Water-Soluble Sustainability

Why This Matters:

Water-soluble design:

• Washes off with water
• Easy post-ride cleanup
• No harsh chemical smell
• Environmental responsibility
• Professional disposal
• Minimal residue
• Sustainable engineering

Trail protection without environmental impact.

Temperature Versatility

Works -20°C to +50°C:

The extreme performance:

• Winter riding capability
• Summer trail performance
• High-temperature resilience (+50°C)
• Cold-weather functionality (-20°C)
• Year-round reliability
• Professional seasonal versatility
• All-conditions trustworthiness

Cold doesn't stop this sealant.

Co2 Cartridge Compatibility

Emergency Inflation Ready:

Works with standard CO2:

• Portable emergency option
• Race-day quick deployment
• No special equipment needed
• Professional flexibility
• Rapid response capability
• Trail reliability
• Professional backup option

Puncture + CO2 = back on course.

Pro Downhill Heritage

Purpose-Built for Extreme Terrain:

The engineering reflects:

• World-class downhiller input
• Brutal race condition testing
• Commencal DH team collaboration
• Specialized Gravity partnership
• Real-world proving grounds
• Elite-level performance demands
• Competition-tested reliability

Proven on the world's gnarliest trails.

Lightweight Performance

Minimal Tire Weight Addition:

At sealant quantities:

• Professional weight optimization
• Doesn't compromise rolling mass
• Climbing efficiency maintained
• Acceleration unaffected
• Performance-neutral addition
• Pro-level engineering
• No speed sacrifice

Protection without weight penalty.

Real-World Testing

Professional Proven:

Trusted by:

• Professional downhill riders
• Enduro race specialists
• Bike park regulars
• Technical trail adventurers
• Serious MTB competitors
• Anyone refusing flats on trails
• Elite and amateur racers

Proven on real trails in real racing.

Complementary Products

Build a Complete Tubeless System:

• Muc-Off Big Bore Tubeless Valves – Professional MTB valves
• Tubeless Rim Tape – Professional sealing
• Tire Levers – Installation tools
• Pressure Gauge – Accurate monitoring
• Professional Pumps – Quality inflation

Care & Maintenance

Sealant Longevity:

Pre-Application:

• Remove old rim strip/tape
• Clean and dry rim thoroughly
• Degrease new tire interior (recommended)
• Use Muc-Off Quick Drying Degreaser for best adhesion
• Professional preparation ensures maximum performance

Application Best Practices:

• Shake pouch/bottle well (bamboo particles settle)
• Inflate tire to create seating (should hear popping)
• Release air and remove valve core
• Fit sealant pouch to valve (upright position)
• Spin wheel so pouch is upside down
• Roll pouch down to insert sealant
• Spin wheel back upright
• Reinsert valve core and inflate to pressure
• Professional installation technique matters

Maintenance Schedule:

• Check sealant volume every 3–6 months
• More frequent checks in extreme heat (+35°C)
• Top-up as needed (don't wait for failure)
• Shake wheel during application for even distribution
• Professional consistency matters

Storage & Handling:

• Store in cool, dry location
• Away from direct sunlight
• Tightly capped when not in use
• No expiration with proper storage
• Shake before each use
• Professional care extends effectiveness

Seasonal Considerations:

• Hot weather (+35°C): Check every 2 months
• Extreme heat: Top-up as needed
• Temperate climate: Standard 6-month replacement
• Cold climate: Remains functional to -20°C
• Professional monitoring ensures reliability

Warranty & Support

Muc-Off provides:

• Professional customer support
• 10,000+ 5-star reviews (Trustpilot verified)
• Detailed application guides
• How-to video demonstrations
• Technical support available
• Professional backing