Stan’s Original Tubeless Sealant

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).

Available Sizes: 60ml, 250ml, 500ml, 1000ml

Key Features

• 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