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OC1 Tubeless Sealant 450ml
€18.00
In stock
SKU
A171/500
Price per 100 ml: €4.00
Professional puncture protection
The most popular capacity among cyclists - sufficient for 3-4 MTB tyres or 5-6 road tyres. OC1 Tubeless Sealant is a professional sealing compound based on synthetic latex that adheres to the entire tyre interior and instantly patches punctures. Works across a wide pressure range from 15 to 80 PSI, ammonia-free, safe for all materials. Easy to wash off with warm water. The 450 ml capacity is an optimal investment - not too little, not too much, perfect for cyclists with multiple bikes.
- Adheres to entire tyre interior
- Ammonia-free synthetic latex
- Seals on the go
- Wide pressure range
- CO2 compatible
OC1 Tubeless Sealant 5l Previous 
Professional protection for demanding cyclists
A puncture on the trail can ruin any ride. OC1 Tubeless Sealant is a solution that protects against most minor punctures — from thorns and small glass to tiny nails. This sealing compound works in real time: when something punctures your tyre, the liquid immediately fills the hole and creates a durable seal. You don't need to stop or look for a repair spot — you simply keep riding.
The range of applications is exceptionally wide: from road bikes at 80 PSI, through gravel and cyclocross, to MTB, enduro and downhill at 15 PSI. One sealant, all bike types — an approach appreciated by both recreational riders and demanding athletes competing in races.
Main properties
What sets OC1 Tubeless Sealant apart from other tubeless tyre sealing products? This is a product created with both weekend amateurs and demanding competitors in mind.
- Adheres to the entire tyre interior – the liquid spreads evenly across the inner side of the tyre, creating a uniform protective layer.
- Ready to use – requires no dilution or special preparation, so you don't need to worry about proportions, and the formula always works optimally.
- Ammonia-free – the formula based on synthetic latex contains no ammonia, which can cause irritation, making it a non-allergenic product safe for sensitive skin.
- Resistant to extreme conditions – the sealant remains effective across a wide temperature range: from -20°C to +50°C, providing 6+ months of protection in temperate climates.
- CO2 compatible – if you inflate tyres using CO2 cartridges, no problem, the sealant works smoothly with this inflation method as well.
Who should use OC1 sealant?
OC1 Tubeless Sealant is a universal product that works in various usage scenarios. Amateur cyclists will appreciate the peace of mind — once applied, the compound works for several months, protecting against minor punctures. Long-distance touring enthusiasts will find smaller packages an ideal emergency solution that doesn't take up luggage space.
Competitors and athletes need maximum equipment reliability. OC1 sealing compound is used by professional riders — if it works at world championships, it certainly won't fail during amateur races. Owners of multiple bikes — road, MTB and gravel — need only one sealant that works across all vehicle types. Urban cyclists riding routes full of glass, sharp stones or thorns will appreciate the instant response to minor punctures, allowing them to reach their destination without stopping for repairs.
When to use Tubeless Sealant?
There are several key moments when it's worth replenishing or replacing the compound in your tyres.
- During first tubeless tyre installation – when switching to a tubeless system or fitting new tyres, you'll ensure maximum protection from the very start.
- Every 3–6 months with regular riding – sealing compound dries out over time and loses effectiveness, regular replenishment guarantees full protection.
- Before planned races or trips – before an important start or multi-day expedition, always check the sealant condition and replenish if needed to ensure no puncture problems.
- After seasonal break – bike sat in the basement all winter? In spring, check the compound condition and replenish if needed.
- When riding in extreme conditions – planning a route full of thorns, sharp stones or roots? Before such a trip, make sure you have enough fresh sealant.
How does this protection system work?
OC1 Tubeless Sealant is not just a liquid — it's a comprehensive protection system that works in multiple stages. After pouring into the tyre, the compound evenly coats the entire inner surface with a thin layer that adheres to the material and forms the first line of defence against punctures. When a sharp object punctures the tyre, air pressure pushes the sealant through the hole, and the liquid immediately fills the opening and begins to thicken upon contact with air — this happens in a fraction of a second.
The synthetic latex formula creates a durable seal that withstands continued use. This isn't a temporary patch — it's a solid repair that lets you keep riding without worry. Most minor punctures are effectively sealed permanently. The compound doesn't cause corrosion or damage tyres, rims or valves, it's friendly to all materials used in bicycles — from aluminium through carbon to rubber and gaskets. If needed, you can easily replenish the sealant through the valve or when removing the tyre, you don't need to clean the tyre of old product residue.
| EAN | 4262353190197 |
|---|---|
| Application | Bicycle, Trial, MTB |
| Purpose | Sealing |
| Suitable for | Tyres |
| Key Features | Universal 450 ml capacity sufficient for 3-4 MTB tyres or 5-6 road tyres, adheres to entire tyre interior, ammonia-free synthetic latex (non-allergenic), seals porous tyres and rim tape, doesn't clog valves or clump |
| Benefits | Instant puncture protection while riding, automatic hole patching without stopping, universal for all bicycle types, long-lasting effectiveness up to 6+ months, safe for all materials, economical choice |
| What problem does it solve? | Eliminates puncture-related stress on the road, saves time and repair costs, increases riding confidence and comfort, extends tyre lifespan, simplifies tubeless system maintenance, provides peace of mind during longer trips |
| Context of use | Regular training, long bikepacking trips, weekend rides, MTB XC races, road marathons, enduro riding, gravel rides, daily commutes, seasonal bicycle maintenance |
| Application Form | Bottle with applicator |
| Formula | Ready to use / does not require dilution |
| Product Form | Liquid |
| Capacity (litre) | 0.45 |
| Efficiency | Sufficient for 3-4 MTB tyres (100-120 ml/tyre) or 5-6 road tyres (60-80 ml/tyre) |
| Application Temperature | Apply at temperatures between 5°C and 25°C |
| Storage Temperature | Store at temperatures between 5°C and 30°C |
| Made in | Germany |
| Package dimensions | 6.8 × 6.8 × 20.4 cm |
1. Prepare tyre and rim
Make sure the tyre is properly seated on the rim and rim tape is correctly installed. If mounting tyres for the first time, it's worth checking system tightness before adding sealant.
2. Remove valve core
Using a valve core tool, unscrew the core from the tubeless valve. This allows the product to easily flow into the tyre interior. Keep the core in a safe place.
3. Inject the right amount of sealant
Use a syringe or pour directly from the bottle through the valve opening. Recommended amounts: 60–80 ml for road tyres, 80–120 ml for MTB/gravel. For 29" or plus tyres you can use up to 120–140 ml. Don't overdo the amount — too much product means unnecessary weight.
4. Reinstall valve core
Screw the valve core back in and tighten it firmly but without overdoing it. Make sure it's sealed tight.
5. Inflate tyre to recommended pressure
Use a hand pump, compressor or CO2 cartridge. Pump to pressure recommended by the tyre manufacturer — usually from 15 PSI (gravel/enduro) to 80 PSI (road). The tubeless tyre sealant is fully CO2 compatible.
6. Rotate wheel to distribute the product
Rotate the wheel several times in each direction and tilt in various directions. You can also simply ride for a few minutes. This ensures the sealant evenly coats the entire tyre interior.
Important
Ambient temperature — don't apply the product on hot surfaces or immediately after intense riding. Best to work at room temperature when the tyre is cold or slightly warm.
Shake bottle before use — before application, vigorously shake the bottle for 10–15 seconds so ingredients are well mixed and the sealant works optimally.
Monitor product level — every 2–3 months check sealant condition in the tyre. If fluid starts clumping or has dried out, top up or replace.
Protect clothing — sealant may stain fabrics. Work in clothes you don't mind getting dirty, or wear gloves and an apron.
Tip
Regular checking — it's worth regularly (every 1–2 months) checking tyre pressure and sealant condition. If you notice pressure drops faster than usual or see dried product clumps through the valve, it's time to top up.
Use winter season — if you don't ride in winter, it's a good time to replace the product. In spring you'll start with fresh fluid and full protection for the entire season.
Does OC1 Tubeless Sealant work with every bicycle type?
Yes, OC1 Tubeless Sealant is universal and works in both road bikes with high pressure (up to 80 PSI) and MTB, enduro, gravel or downhill bikes with low pressure (from 15 PSI). One formula for all tubeless bicycle types.
How much sealant do I need for one tyre?
For road tyres, 60–80 ml is usually enough, for MTB/gravel tyres 80–120 ml. For large 29" or plus tyres you can use up to 120–140 ml. One 450 ml bottle is enough for 3-4 MTB tyres.
How long does the product work in the tyre?
OC1 Tubeless Sealant provides up to 6+ months of protection in temperate climates. In dry and hot conditions it may need more frequent topping up (every 3–4 months), in humid climates it may last longer. Regularly check the product condition.
Will the sealant damage my tyres or rims?
No. The OC1 Tubeless Sealant formula is safe for all materials used in bicycles — it doesn't cause corrosion, doesn't damage tyres, rims, rim tape or valves. You can use it without worry in any tubeless system.
Can I use CO2 cartridges with this product?
Yes, OC1 Tubeless Sealant is fully compatible with CO2 cartridges. You can inflate tyres this way without any problems — the sealant will maintain its properties.
What to do when the product clumps up?
Clumping is a sign the sealant is starting to dry out and losing effectiveness. Best to top up with fresh fluid or completely replace the product. Shake the tyre — this sometimes helps short-term, but you'll eventually need to add new sealant.
Does the sealant patch every puncture?
The product handles small punctures excellently (thorns, small nails, small glass) up to about 3–4 mm. Larger holes may require a patch or tyre replacement. In most everyday situations the sealant handles things without your intervention.
How to store unused product?
Store at 5°C to 25°C in a dry, cool place, away from direct sunlight. Make sure the bottle is tightly sealed. Shake the bottle before each use.
Can I mix OC1 sealant with another product?
Although technically possible, we don't recommend mixing different sealant brands as they may react unpredictably with each other. Best to completely remove the old product and fill tyres with fresh OC1 Tubeless Sealant.
How much does the product weigh and does it affect bike weight?
The sealant has similar density to water. The recommended 60–120 ml amount adds 60–120 g per tyre, which is an acceptable cost for puncture protection. Most cyclists consider this tradeoff worthwhile — you save time and stress while gaining confidence.
Can I use the product in tyres with inner tubes?
The sealant is designed for tubeless systems. In tyres with inner tubes it won't work properly because it has no access to the inner tyre surface. If you want to switch to tubeless tyres, OC1 Tubeless Sealant is an excellent choice to start.
How easy is it to wash off the product?
Sealant residue is easily removed with warm or hot water and a sponge. The product doesn't create permanent stains and you can easily wash it off rims, tyres or tools.
Signal word
None (product not classified as hazardous)
Precautionary statements
No P statements.
Warnings
This product is not classified as hazardous in accordance with Regulation (EC) No 1272/2008.
Warning pictograms
No warning pictograms.
Hazard statements
No hazard statements for the finished product.
Composition
Contains: BRONOPOL (<0.2%); β-Alanine, N-(2-carboxyethyl)-, N-coco alkyl derivs., disodium salts (<0.5%)
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