Orange Seal CyclingEndurance 32oz Sealant Refill(Return to Product Page)

Endurance Formula performs more in line with traditional in-market sealant. According to the Orange Seal website, it effectively patches holes half the size as the original formula, but lasts over twice as long before drying out in your tire. I rode for over 50,000 miles on the Endurance formula before I finally had my first full flat, and it will be the end of the Endurance formula for me. The reason being - with the Original formula, not only did it seal everything - but it sealed a sidewall puncture on a gravel descent, and I was able to carefully ride the bike home with it, with no loss of air. There is a compromise when going to the Endurance formula. Both are great - but the description of "up to 1/4 of an inch" is actually misleading. The original claims for this were for 1/8th inch hole, which is more than adequate for most punctures. Just be sure to select the appropriate formula for your needs - there is no "one size fits all".

Tried a few others, and they were ok. Orange Seal is the best. With proper maintenance (refresh it every 3-4 months) I went 22 1/2 months "No Flats"

Seals well compared to Stans. Make sure to clean your valve with each refresh. It does dry out in about 3 to 4 weeks.

Does it's job. No Stanimals.