FlatOut Off-Road Tyre Sealant 1 Gallon — Kevlar-Reinforced, Water-Washable Preventive Formula with Valve Core Tool

FlatOut Off Road Tire Sealant is a Kevlar-reinforced, water-washable preventive sealant in a 1-gallon container designed to stop punctures and slow leaks on outdoor power equipment tires.

Built for demanding outdoor work, this FlatOut formula protects tires on riding lawn mowers, zero-turn mowers, snow blowers, wood chippers, wheelbarrows and similar equipment. The product pairs a durable fiber blend including Kevlar with a pump-in ready consistency and includes a valve core tool to make installation simple. It’s non-toxic, latex- and adhesive-free, so cleanup is hassle-free and it won’t leave a sticky residue inside the tire.

How does FlatOut prevent flats during regular outdoor use?

The sealant forms an instant mechanical plug when a puncture occurs, using high-strength fibers to fill holes and stop air loss. Because the formula remains liquid inside the tire, it continually seeks and seals punctures up to about 1/2 inch over time, significantly reducing the need for emergency repairs.

• Kevlar and fiber matrix for durable puncture plugs
• Seals punctures up to 1/2 inch in diameter
• Continuous protection while the tire rotates
• Water-washable for easy removal if needed

Is FlatOut safe for my equipment and easy to install?

Yes — the Outdoor Power Equipment formula is non-toxic, latex- and adhesive-free so it won’t gum up rims or create messy residue. A valve core tool is included to simplify installation: remove the core, inject the recommended amount, then reinstall the core and inflate to the proper pressure.

• Includes valve core removal tool for quick access
• Non-toxic and water-washable for safe handling
• No adhesives or sticky buildup on rims
• Works with common tire sizes used on outdoor equipment

How long does protection last and will it affect tire balance?

FlatOut is formulated for long-term preventative use; when used as directed it can provide ongoing protection for many years, maintaining defense against slow leaks and punctures. The fiber content is designed to distribute evenly inside the tire and not form hard clumps, minimizing any impact on balance for typical outdoor equipment speeds and loads.

• Long-lasting protection when used as a preventive measure
• Designed to remain fluid and distribute evenly inside tires
• Minimizes imbalance for low- to moderate-speed equipment
• Washable if professional tire servicing is required

Which tires and situations is this formula recommended for?

This version of FlatOut is optimized for off-road and outdoor power equipment tires — not for passenger vehicles at highway speeds. It’s ideal for landscaping, agriculture, construction yards and residential outdoor machines where punctures from nails, screws, and debris are common.

• Best for riding lawn mowers, zero-turn mowers, and snow blowers
• Suitable for wheelbarrows, utility trailers, and wood chippers
• Trusted by professionals in landscaping and heavy equipment use
• Not recommended for passenger car tires or high-speed applications

Who is this for: FlatOut Off Road Tire Sealant is aimed at homeowners, landscapers, contractors and farmers who want to reduce downtime and maintenance costs on outdoor machinery. If you operate medium- and low-speed equipment where punctures are a frequent problem and you prefer a non-toxic, easy-to-install preventive solution, this 1-gallon Kevlar formula provides durable protection and straightforward serviceability when tire work is required.