The world’s first tubeless tire sealant, trusted by riders since 2001
Formulated by our founder Stan in 2001, Stan’s Original Tubeless Sealant remains the number one choice for tubeless conversion and flat prevention worldwide. Designed for all-around use, it is fully compatible with tubeless road, gravel, and mountain bike tires, as well as tubes and tubular tires.
The Original formula delivers reliable puncture sealing performance for 2–7 months, depending on riding conditions. In dry or arid climates, more frequent sealant level checks may be required. A premium low-viscosity blend with anti-freezing agents ensures consistent performance in temperatures as low as -20°F (-28°C).
One liter of Stan’s Original Tire Sealant can seal up to 16 tires, depending on tire size.
The world’s first tubeless sealant and the first choice of riders today
Recommended for all-around use across road, gravel, and MTB tires
Seals punctures up to 6.5mm (¼”) quickly and reliably
Resists freezing and performs in temperatures down to -20°F (-28°C)
Remains liquid inside tires for 2–7 months for long-lasting protection
Made with natural materials, safe for the environment
Low-viscosity formula allows easy injection through valve stems with removable cores
Compatible with tubeless systems, tubes, and tubular tires
Compatible with Stan’s Tubeless Sealant Injector
60ml
Pre-measured size, ready for one bicycle tire
Ideal for road, gravel, or emergency refills
250ml
Ideal for multiple tires or regular maintenance
Popular choice for road and XC MTB setups
500ml
Best for high-volume MTB tires or multiple bikes
Excellent value for frequent riders
1000ml
Workshop and team favorite
Seals up to 16 tires, depending on size
To maximize shelf life:
Store in a cool, dry place
Avoid direct sunlight and extreme temperatures
Keep container sealed when not in use
| Tire Size | Sealant Amount | Minimum Bottle per Bike |
|---|---|---|
| 700c x 28mm | 50ml (1.7oz) | 125ml |
| 700c x 32mm | 55ml (1.8oz) | 125ml |
| 700c x 40mm | 60ml (2oz) | 125ml |
| 650b x 47mm | 80ml (2.7oz) | 250ml |
| 29" x 2.3" | 105ml (3.5oz) | 250ml |
| 29" x 2.4" | 110ml (3.7oz) | 250ml |
| 29" x 2.5" | 125ml (4.2oz) | 250ml |
| 29" x 2.8" | 130ml (4.4oz) | 500ml |
| 29" x 3.0" | 140ml (4.7oz) | 500ml |
| 27.5" x 2.3" | 100ml (3.4oz) | 250ml |
| 27.5" x 2.4" | 105ml (3.5oz) | 250ml |
| 27.5" x 2.5" | 110ml (3.7oz) | 250ml |
| 27.5" x 3.0" | 135ml (4.5oz) | 500ml |
| 26" x 1.95" | 80ml (2.7oz) | 250ml |
| 26" x 4.0" | 175ml (5.9oz) | 500ml |
| 26" x 5.0" | 230ml (7.7oz) | 500ml |
