FlatOut Tubeless Tire Sealant — Kevlar-reinforced 32 oz Bag for ATVs, UTVs & Lawn Equipment

FlatOut Off-Road Multi-Purpose Tire Sealant is a Kevlar-reinforced, tubeless tire liquid that seals punctures and prevents slow leaks for ATVs, UTVs, lawn equipment and trailers.

Designed for off-road and heavy-duty use, this 32-ounce bag delivers a ready-to-use, non-toxic sealant that both repairs fresh punctures and protects tires proactively. The formula contains microscopic Kevlar fibers that lock into holes and hold pressure without sticky residues, and it’s compatible with a wide variety of tubeless tires. Easy to apply and water-washable, FlatOut is intended for landscapers, fleet vehicles, recreational riders and anyone who needs dependable puncture protection in rough conditions.

How does FlatOut stop punctures while I’m driving?

FlatOut’s liquid particles and Kevlar fibers travel inside a rotating tire and rapidly fill holes caused by nails, thorns, or sharp debris. When air escapes, the sealant forms a plug that adheres to the puncture site and restores pressure quickly.

• Kevlar-reinforced fibers form durable plugs.
• Liquid carriers distribute repair material around the tread.
• Seals punctures up to approximately 1/2 inch when used preventatively.
• Works continuously to reduce slow leaks over long periods.

Which vehicles and situations is this sealant suitable for?

FlatOut is formulated for a broad set of tubeless tire applications — from recreational off-road vehicles to commercial landscaping equipment. It’s ideal wherever puncture exposure is high and downtime must be minimized.

• ATVs, UTVs, dirt bikes and off-road Jeeps.
• Golf carts, riding mowers and garden machinery.
• Boat trailers, utility trailers and industrial equipment.
• Professional crews working in construction or groundskeeping.

How do I apply the sealant and maintain my tires afterward?

Application is straightforward: shake the bag, remove the valve core, inject the recommended amount, reinstall the valve core, then inflate. The included easy-install cap or conventional injector tools both work, and cleanup is quick because the formula contains no latex or adhesives.

• Shake product thoroughly before use to suspend fibers evenly.
• Follow vehicle-specific volume guidance for each tire size.
• Recheck tire pressure after installation and after a short drive.
• Sealant is water-washable for simple rim or tool cleaning.

Will this sealant damage rims, TPMS sensors, or create a sticky mess?

FlatOut is non-toxic, latex- and adhesive-free, and formulated to avoid gummy residues. It’s compatible with tubeless assemblies and safe for most Tire Pressure Monitoring Systems; proper installation and periodic inspection are recommended.

• No latex or tacky adhesives to foul tire beads or rims.
• Water-washable formula eases cleanup of rims and tools.
• Designed to be TPMS-friendly when installed per instructions.
• Kevlar fibers provide strength without leaving sticky deposits.

Who is this for? FlatOut Off-Road Sealant is made for anyone who wants reliable, low-maintenance puncture protection: off-road enthusiasts, landscapers, rental fleets, agricultural operators, and homeowners who use riding mowers or trailers. If you need a solution that both prevents slow leaks and quickly repairs common punctures in tubeless tires, this Kevlar-reinforced sealant offers a practical balance of durability, cleanliness, and ease of use.