---
product_id: 73159838
title: "Muc-Off MTB Tubeless Sealant - Advanced Tubeless Tyre Sealant with UV Dye - Seals Holes up to 6mm - Lightweight Formula for Mountain and Enduro Bikes - 140ml"
brand: "muc-off"
price: "€ 29.12"
currency: EUR
in_stock: true
reviews_count: 13
category: "Muc Off"
url: https://www.desertcart.hr/products/73159838-muc-off-mtb-tubeless-sealant-advanced-tubeless-tyre-sealant-uv
store_origin: HR
region: Croatia
---

# Lasts up to 6 months UV dye for leak detection Seals holes up to 6mm Muc-Off MTB Tubeless Sealant - Advanced Tubeless Tyre Sealant with UV Dye - Seals Holes up to 6mm - Lightweight Formula for Mountain and Enduro Bikes - 140ml

**Brand:** muc-off
**Price:** € 29.12
**Availability:** ✅ In Stock

## Summary

> 🚵‍♂️ Ride fearless, seal fast, and spot leaks like a pro!

## Quick Answers

- **What is this?** Muc-Off MTB Tubeless Sealant - Advanced Tubeless Tyre Sealant with UV Dye - Seals Holes up to 6mm - Lightweight Formula for Mountain and Enduro Bikes - 140ml by muc-off
- **How much does it cost?** € 29.12 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.hr](https://www.desertcart.hr/products/73159838-muc-off-mtb-tubeless-sealant-advanced-tubeless-tyre-sealant-uv)

## Best For

- muc-off enthusiasts

## Why This Product

- Trusted muc-off brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **UV Leak Detection:** Unique UV dye lets you spot hidden punctures instantly with a UV light—stay ahead of flats.
- • **Pro-Level MTB Endurance:** Developed with top riders for enduro and downhill—trusted on the toughest trails.
- • **Long-Lasting Reliability:** Keeps tyres sealed and ready for up to six months—ride worry-free season after season.
- • **Instant Puncture Protection:** Seals holes up to 6mm fast, so your ride never stops.
- • **Universal Tubeless Compatibility:** Works seamlessly with tubeless ready, UST wheels, and CO2 inflators for quick mid-ride fixes.

## Overview

Muc-Off MTB Tubeless Sealant is a cutting-edge, lightweight formula designed to seal punctures up to 6mm instantly and last up to six months. Featuring a unique UV dye for easy leak detection, it’s compatible with all tubeless systems and CO2 inflators, making it the ultimate sealant for mountain and enduro bikers who demand reliable, long-lasting tyre protection on every ride.

## Description

Product Description MTB Tubeless Sealant 140ml Pouch Muc-Off Disc Brake Cleaner

Review: Game-Changer for Tubeless Tires! - Muc-Off No Puncture Hassle Tubeless Sealant is hands down one of the best sealants I’ve used for my MTB. It delivers on its promise and keeps me riding worry-free! Why It’s Awesome: ✔️ Seals Punctures Fast – Instantly plugs holes up to 6mm, keeping my rides smooth and uninterrupted. ✔️ Long-Lasting Formula – Stays effective for months without drying out too quickly. ✔️ Works in All Conditions – Performs well in both hot and cold weather, ideal for year-round riding. ✔️ Easy to Apply – The included nozzle makes it mess-free and simple to pour directly into the tire. ✔️ UV Detection Technology – Helps spot leaks so I can be sure my tires are properly sealed. ✔️ Ammonia-Free & Safe – Won’t damage my rims or tires, unlike some other sealants. I’ve taken this sealant through rocky trails, muddy tracks, and rough terrain—it never lets me down! If you're running tubeless, this is a must-have. Highly recommend! 🚴‍♂️💨 Works like magic!
Review: Approved - Great product!

## Features

- Seals Punctures up to 6mm: State-of-the-art tubeless sealant uses cutting-edge molecules to close holes and tears fast, keeping you riding when trails get rough
- Lasts up to Six Months: Designed to stay effective in tyres for up to half a year, this non-corrosive tyre sealant is easy to wash off and won’t ball up
- UV Dye for Easy Inspection: Contains a unique UV additive so you can spot hidden punctures - use with a UV light for the ultimate check after every ride
- Compatible With Tubeless Systems: Works with tubeless ready and UST wheels and tyres, and is CO2 compatible for quick mid-ride repairs
- Pro-Level MTB Puncture Protection: Developed with top riders for enduro, downhill, and MTB, this sealant complements any tubeless tyre repair kit or bike puncture repair kit

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07FGKWJ2R |
| Best Sellers Rank | 6,440 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) 46 in Bike Tyre Repair Kits |
| Brand | Muc-Off |
| Colour | Clear |
| Compatible Material | Metal, Plastic, Rubber |
| Customer Reviews | 4.5 out of 5 stars 2,210 Reviews |
| EU Spare Part Availability Duration | 6 Months |
| Global Trade Identification Number | 05037835821000 |
| Included Components | Nothing |
| Item Dimensions | 35 x 95 x 166 millimetres |
| Item Form | Liquid |
| Item Type Name | Accessory |
| Item Weight | 0.33 Pounds |
| Item dimensions L x W x H | 35 x 95 x 166 millimetres |
| Item weight | 0.33 Pounds |
| Manufacturer | MUC OFF |
| Manufacturer Part Number | 821 |
| Material | Rubber |
| Model Number | 821 |
| Number of Items | 1 |
| Product Warranty | Producer |
| Style | Single |
| Style Name | Single |
| Surface Recommendation | Metal |
| UPC | 779420541188 |
| Unit Count | 1.0 count |
| Water Resistance Level | Water Resistant |
| Water resistance level | Water Resistant |

## Product Details

- **Brand:** Muc Off
- **Item dimensions L x W x H:** 35 x 95 x 166 millimetres
- **Item weight:** 150 g
- **Material:** Cotton
- **Style:** Single

## Images

![Muc-Off MTB Tubeless Sealant - Advanced Tubeless Tyre Sealant with UV Dye - Seals Holes up to 6mm - Lightweight Formula for Mountain and Enduro Bikes - 140ml - Image 1](https://m.media-amazon.com/images/I/71PlQapF3sL.jpg)
![Muc-Off MTB Tubeless Sealant - Advanced Tubeless Tyre Sealant with UV Dye - Seals Holes up to 6mm - Lightweight Formula for Mountain and Enduro Bikes - 140ml - Image 2](https://m.media-amazon.com/images/I/81CuZwMN3aL.jpg)
![Muc-Off MTB Tubeless Sealant - Advanced Tubeless Tyre Sealant with UV Dye - Seals Holes up to 6mm - Lightweight Formula for Mountain and Enduro Bikes - 140ml - Image 3](https://m.media-amazon.com/images/I/81bRQky-QqL.jpg)
![Muc-Off MTB Tubeless Sealant - Advanced Tubeless Tyre Sealant with UV Dye - Seals Holes up to 6mm - Lightweight Formula for Mountain and Enduro Bikes - 140ml - Image 4](https://m.media-amazon.com/images/I/81WELaoJogL.jpg)
![Muc-Off MTB Tubeless Sealant - Advanced Tubeless Tyre Sealant with UV Dye - Seals Holes up to 6mm - Lightweight Formula for Mountain and Enduro Bikes - 140ml - Image 5](https://m.media-amazon.com/images/I/71TrwtsAmPL.jpg)

## Available Options

This product comes in different **Size Name** options.

## Questions & Answers

**Q: Does this work for go-kart wheels?**
A: Probably

**Q: Does the bag fit a Schrader valve?**
A: no

**Q: Will this pink solution stain my white tires if I spill some or get a puncture and it foams out?**
A: Sorry That a good question I only use it on black tires. I have gotten it on a color jersey  and clean it asap and not had a problem. Now if it drys on cloth I think it may not come out but on a tire that has a hard casing may not be a problem if you clean it or wipe it off.

**Q: How many tires will this treat?**
A: I would Say one and a half (maybe top up after a few months?).  (I run 27.5 2.2, and it would depend on your tire size.)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Game-Changer for Tubeless Tires!
*by R***H on 11 March 2025*

Muc-Off No Puncture Hassle Tubeless Sealant is hands down one of the best sealants I’ve used for my MTB. It delivers on its promise and keeps me riding worry-free! Why It’s Awesome: ✔️ Seals Punctures Fast – Instantly plugs holes up to 6mm, keeping my rides smooth and uninterrupted. ✔️ Long-Lasting Formula – Stays effective for months without drying out too quickly. ✔️ Works in All Conditions – Performs well in both hot and cold weather, ideal for year-round riding. ✔️ Easy to Apply – The included nozzle makes it mess-free and simple to pour directly into the tire. ✔️ UV Detection Technology – Helps spot leaks so I can be sure my tires are properly sealed. ✔️ Ammonia-Free & Safe – Won’t damage my rims or tires, unlike some other sealants. I’ve taken this sealant through rocky trails, muddy tracks, and rough terrain—it never lets me down! If you're running tubeless, this is a must-have. Highly recommend! 🚴‍♂️💨 Works like magic!

### ⭐⭐⭐⭐⭐ Approved
*by P***J on 12 July 2026*

Great product!

### ⭐⭐⭐⭐ Seems good
*by A***L on 9 October 2024*

I thought having a new eMTB with tubeless tyres was going to be a Godsend - it turns out I was wrong! A new Trek eMTB with, I assume, Bontregar sealant, failed miserably within the first few weeks. A puncture happened, but instead of sealing it the sealant just continued to pour out, never once sealing the hole. I repeatedly pumped the tyre and limped home. Left the tyre inflated with the puncture downmost, but the next day when I came to pump the tyre up to correct pressure, it just spat out the plug that had formed. I had to remove the tyre and patch the tyre itself. Then clean out the old sealant and replace it with this product, as it was the highest recommended. But, you have to change it every six months! If I was on my old bike and got a punctured, I would have had a spare innertube, that I carry, fitted and been on my way in less than five minutes. With tubeless it only put an end to my ride and took two days to get back up and running. Isn't technology wonderful. If a standard tube fitted these tyres I would have gone back to tubed. Only they're wider and the tubes cost mega £. But if I get another puncture and this goo fails it's getting a tube. And I'm not spending £8 every six months when I can just put an innertube in there for life!

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*Product available on Desertcart Croatia*
*Store origin: HR*
*Last updated: 2026-08-02*