MULTI SEAL® FlatOut™ with Kevlar™ Trailer Formula Tire Sealant Additive prevents flats and seals leaks. This unique tire additive increases tire life, improves fuel economy, and prevents up to 95% of flats, so you save money, save time, and stay safe. Engineered with extra-strong Kevlar fibers to seal puncture after puncture, MULTI SEAL FlatOut with Kevlar Trailer Formula Tire Sealant Additive provides 24/7 protection with serious puncture protection—up to 1/2" in the tread area—so you don't get stranded and don't ruin your weekend. MULTI SEAL has led the industry in tire-additive technology for over 35 years, trusted by the military, delivery fleets, and other demanding industrial users. Now, trailer owners can get that same extreme performance for travel trailers, boat trailers, horse trailers, cargo trailers, utility trailers, and more. Its unique formula stands above the competition as nonflammable, nontoxic, noncorrosive, nonaerosol, and has no latex or adhesives such as glue, so it never gets sticky. It always remains liquid and can even wash out easily with plain water. It installs simply with the Easy Dispensing Cap. Not for passenger cars, light-duty trucks/SUVs, or internal tire pressure monitoring systems (TPMS). Do not use with other sealants or flat fixers.
Manufacturer model #: 20140.

Prevents flats and seals leaks
Serious puncture protection: up to 1/2" in tread area
Trusted in all sectors: military, heavy construction, agriculture, delivery fleets, and other demanding industrial users for over 35 years
Prevents up to 95% of flats and virtually eliminates slow leaks
Unique formula with Kevlar fibers
No latex or adhesives
Nonflammable, nontoxic, noncorrosive, nonaerosol
Easy water cleanup