Would love to tell you about its sealing ability, but after several tough rides, I haven't had a puncture. I like that it isn't a neon color, unlike some brands, and is thicker, making setup and dismounting tires less messy.
Does a fantastic job of sealing tubeless road bike tires. No leaks from minor cuts in tire. Also helps with normal time leakage of air when bikes sits for 3-4 days
