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OC1 Tubeless Sealant 950ml
€35.00
In stock
SKU
A171/001
Price per 100 ml: €3.68
Professional puncture protection in a compact package
Large packaging for enthusiasts and regular users — enough for an entire season for 2-3 bikes. OC1 Tubeless Sealant in 950 ml capacity is an ammonia-free synthetic latex that instantly patches punctures and adheres to the entire tyre surface. Effective in every type of bike — from road bikes at 80 PSI to downhill at 15 PSI. The 950 ml capacity is the best value for those riding regularly and seeking maximum protection over the long term.
- Adheres to entire tyre interior
- Ammonia-free synthetic latex
- Seals on the go
- Wide pressure range
- CO2 compatible
OC1 Tubeless Sealant 140ml Previous 
A season of protection for a garage with several bikes
A puncture on the trail can ruin any ride. OC1 Tubeless Sealant is the 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 fluid instantly fills the hole and creates a durable seal. No need to stop or find a repair spot — you simply keep riding.
The range of applications is exceptionally wide: from road bikes with 80 PSI pressure, through gravel and cyclocross, to MTB, enduro and downhill with 15 PSI. One sealant, all bike types. The 950 ml bottle is the format for home use: enough for 7–9 MTB tyres, 8–10 gravel or 11–14 road tyres, which covers a full season in a garage with more than one bike.
Main properties
What sets OC1 Tubeless Sealant apart from other tubeless tyre sealing compounds? It's a product created with both weekend amateurs and demanding competitors in mind.
- Adheres to the entire tyre interior – the fluid 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 think about ratios, and the formula always works optimally.
- Ammonia-free – the synthetic latex-based formula contains no ammonia, which can cause irritation, making it a non-allergenic product safe for sensitive skin.
- Extreme condition resistance – 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 type 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 competitions. 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 compound's 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 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 and loses effectiveness over time, regular replenishment guarantees full protection.
- Before planned races or trips – before an important start or multi-day expedition, always check sealant condition and replenish if needed for puncture-free peace of mind.
- After seasonal break – bike stood in the basement all winter? Check the compound condition in spring 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 sufficient fresh sealant.
How does this protection system work?
OC1 Tubeless Sealant is more than just a fluid — 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 fluid instantly 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 ride on 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 seals. If needed, you can easily replenish sealant through the valve or when removing the tyre, no need to clean the tyre of old product residue.
| EAN | 4262353190180 |
|---|---|
| Application | Bicycle, Trial, MTB |
| Purpose | Sealing |
| Suitable for | Tyres |
| Key Features | Maximum economy — best price per ml in individual packaging, professional formula used by MXGP riders, adheres to the entire inner surface of the tyre |
| Benefits | Long-lasting effectiveness without refilling, eliminates punctures while riding without stopping, saves time and money through fewer purchases, safe for all materials (carbon, aluminium), proven reliability |
| What problem does it solve? | Frequent punctures and repair costs, need to remember regular purchases of small packages, high unit costs of small volumes, risk of lacking sealant at a critical moment, need for long-term protection for multiple bikes |
| Context of use | Seasonal preparation of entire bike fleet, multi-day bikepacking trips, regular training and weekend rides, MTB XC and enduro races, road marathons, club bike maintenance, service support in small workshops |
| Application Form | Bottle with applicator |
| Formula | Ready to use / does not require dilution |
| Product Form | Liquid |
| Capacity (litre) | 0.95 |
| Efficiency | Enough for 7-9 MTB tyres (100-120 ml/tyre) or 11-14 road tyres (60-80 ml/tyre), or 8-10 gravel tyres (90-100 ml/tyre) |
| Storage Temperature | Store at temperatures between 5°C and 30°C |
| Made in | Germany |
| Package dimensions | 8.46 × 8.46 × 23.43 cm |
1. Prepare the tyre and rim
Make sure the tyre is properly seated on the rim and the rim tape is correctly installed. If mounting tyres for the first time, it's worth checking system tightness before adding sealant.
2. Remove the valve core
Using a valve core tool, unscrew the core from the tubeless valve. This will allow 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. The 950 ml bottle lets you fill both wheels during a single service and keeps a reserve for further top-ups through the season.
4. Reinstall the valve core
Screw the valve core back in and tighten it firmly, but don't overdo it. Make sure it's sealed tightly.
5. Inflate the tyre to recommended pressure
Use a hand pump, compressor or CO2 cartridge. Inflate to the pressure recommended by the tyre manufacturer — usually from 15 PSI (gravel/enduro) to 80 PSI (road). The tubeless tyre sealant is fully compatible with CO2.
6. Rotate the wheel to distribute the product
Rotate the wheel several times in each direction and tilt it in different directions. You can also simply ride for a few minutes. This will ensure the sealant evenly covers the entire tyre interior.
Important
Ambient temperature — don't apply the product on hot surfaces or immediately after intense riding. It's best to work at room temperature when the tyre is cold or slightly warm.
Shake the bottle before use — before application, vigorously shake the bottle for 10–15 seconds to ensure ingredients are well mixed and the sealant works optimally.
Monitor product level — every 2–3 months check the sealant condition in the tyre. If the liquid starts clumping or has dried out, top up or replace. The large 950 ml bottle keeps a refill always within reach.
Protect your clothing — the 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 dropping faster than usual or see clumps of dried product through the valve, it's time to top up.
Use the 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 liquid and full protection for the entire season.
Servicing a whole fleet — the 950 ml bottle is an excellent choice for families with several bikes, cycling clubs, or active riders running more than one wheelset.
Does OC1 Tubeless Sealant work in every type of bike?
Yes, OC1 Tubeless Sealant is universal and works in road bikes with high pressure (up to 80 PSI) as well as MTB, enduro, gravel or downhill bikes with low pressure (from 15 PSI). One formula for all types of tubeless bikes.
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. The 950 ml bottle fills both wheels of a bike comfortably and leaves a convenient reserve for top-ups through the whole season.
How long does the product last in the tyre?
OC1 Tubeless Sealant provides up to 6+ months of protection in temperate climate. In dry and hot conditions it may require more frequent topping up (every 3–4 months), in humid climate it may last longer. With the 950 ml bottle, topping up is always quick and economical. 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 bikes — it doesn't cause corrosion, doesn't damage tyres, rims, rim tape or valves. You can use it without concerns 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 issues — the sealant will maintain its properties.
What to do when the product clumps up?
Clumping is a sign that the sealant is starting to dry out and losing effectiveness. It's best to top up with fresh liquid or completely replace the product. Shake the tyre — sometimes this helps short-term, but ultimately you'll need to add new sealant. The 950 ml bottle makes sure spare liquid is always within reach.
Does the sealant seal every puncture?
The product handles small punctures excellently (thorns, small nails, fine glass) up to about 3–4 mm. Larger holes may require a patch or tyre replacement. In most everyday situations, the sealant will handle things without your intervention.
How to store unused product?
Store at temperatures from 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. It's 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 amount of 60–120 ml means an extra 60–120 g per tyre, which is an acceptable cost for puncture protection. Most cyclists consider this trade-off beneficial — you save time and stress, gaining peace of mind.
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 in the 950 ml bottle is an excellent choice to start — enough to set up the whole bike with some to spare.
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'll 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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