Flat-Proof Systems
Poly-Fil® Flat-Proof Tire Solutions for Safer, Stronger, More Reliable Equipment
Engineered by Poly-Fil®, our Flat-Proof Systems replace air in tires with high-performance polyurethane fill—delivering unmatched safety, stability, and reliability for industrial, construction, and military applications. Backed by a full line of Poly-Fil® equipment, our solutions are designed to efficiently fill, maintain, and support flat-proofed tires for maximum uptime and performance.
Applications
- Construction and Heavy Equipment
- Agriculture and Farm Operations
- Waste Management and Industrial Vehicles
- Military and Specialized Applications
Construction and Heavy Equipment
Poly-Fil® flat-proof system ensures construction equipment stays on the job with no downtime from flats or blowouts. Safer and more durable than air-filled tires, our system helps maximize efficiency and reduce operating costs across worksites.
Common Applications
- Skid steer and loader tires
- Backhoe and excavator tires
- Man-lift and aerial work platform tires
Agriculture and Farm Operations
Our flat-proofing system delivers long-lasting performance for farm machinery, eliminating the risk of flat tires in the field. With improved stability and dependable traction, Poly-Fil® keeps critical agricultural operations moving.
Common Applications
- Tractor and harvester tires
- Sprayer and irrigation equipment tires
- Utility vehicle and ATV tires
Waste Management and Industrial Vehicles
For refuse trucks, forklifts and other industrial vehicles, Poly-Fil® provides a flat-proof solution that improves safety in demanding stop-and-go environments. Recyclable fill also reduces landfill waste while lowering lifecycle costs.
Common Applications
- Refuse and recycling truck tires
- Forklift and material handling tires
- Port and terminal equipment tires
Military and Specialized Applications
Built to withstand demanding conditions, Poly-Fil® helps military and specialty vehicles remain mission-ready. With flat-proof performance, recycled material integration and tread pattern flexibility, our system ensures safety and reliability.
Common Applications
- Humvee and tactical vehicle tires
- Defense and security equipment tires
- Specialized OEM applications
Why Poly-Fil®
Engineered Polyurethane. Proven Performance.
Decades of polyurethane chemistry expertise, formulated specifically for off-the-road tire applications where reliability and safety are non-negotiable.
Proven Performance
Backed by decades of polyurethane chemistry expertise from Polycoat Products and our affiliated brands.
Five Formulations
Specifically tuned products for load, speed, and environment — from soft flotation to zero-deflection high-reach.
Sustainability Built In
Recycled-fill process and a water-based option that reduce both lifecycle cost and environmental impact.
Safety & Reliability
Eliminates blowouts and downtime in demanding stop-and-go, high-stakes, and remote environments.
The Poly-Fil® Family
Five Formulations. One for Every Application.
Each Poly-Fil® product is a two-component polyurethane system tuned for a specific use case. Match your application to the right formulation below.
Not sure which formulation fits? Talk to a Poly-Fil® specialist →
How It Works
From Pneumatic to Flat-Proof — In Four Steps
Poly-Fil® is pumped into pneumatic tires by certified technicians, fully replacing the air. It cures into a flexible, shock-absorbing elastomer core — eliminating flats while preserving tire flex.
Inspect
Tires and wheels are checked for defects before processing.
Pre-Stretch
Tire carcass is pre-stretched overnight for proper fit and performance.
Pump & Pressurize
Poly-Fil® is pumped through the valve stem, fully replacing the air to recommended pressure.
Cure
The fill cures at proper time and temperature into a resilient elastomer core.
Applications
Built for the Industries That Can't Afford Downtime
From construction sites to defense fleets, Poly-Fil® keeps equipment in service across the toughest operating environments.
Construction & Heavy Equipment
Keep construction equipment on the job with no downtime from flats or blowouts. Safer and more durable than air-filled tires.
Common Applications
- Skid steer and loader tires
- Backhoe and excavator tires
- Man-lift and aerial work platform tires
Agriculture & Farm Operations
Long-lasting performance for farm machinery, eliminating the risk of flat tires in the field. Improved stability and dependable traction.
Common Applications
- Tractor and harvester tires
- Sprayer and irrigation equipment tires
- Utility vehicle and ATV tires
Waste Management & Industrial Vehicles
For refuse trucks, forklifts, and industrial vehicles, Poly-Fil® improves safety in demanding stop-and-go environments. Recyclable fill reduces landfill waste.
Common Applications
- Refuse and recycling truck tires
- Forklift and material handling tires
- Port and terminal equipment tires
Military & Specialized Applications
Built to withstand demanding conditions, Poly-Fil® keeps military and specialty vehicles mission-ready with flat-proof performance and tread pattern flexibility.
Common Applications
- Humvee and tactical vehicle tires
- Defense and security equipment tires
- Specialized OEM applications
Sustainability
Recycled. Reformulated. Responsible.
Poly-Fil® is engineered to reduce both lifecycle cost and environmental impact. Our recycled-fill process keeps used polyurethane out of landfills, and our water-based Aqua formulation cuts petrochemical use for slow-moving equipment.
Built Around Your Needs
Flat-Proof Tire Solutions That Adapt to You
Poly-Fil® partners with dealers and OEMs to deliver flat-proof solutions tailored to each application. From safety-certified training to recycled material integration, we adapt to your performance, cost, and sustainability goals.
- Dealer and technician training with ongoing certification
- Tread pattern flexibility to preserve preferred tire designs
- Recycled-fill process that lowers cost and environmental impact
- Direct technical support from Polycoat chemistry experts
Resources
Specs, Guides, Videos & Training
Everything you need to evaluate, install, and maintain Poly-Fil® flat-proof systems.
Technical Data Sheets
Full TDS for all five Poly-Fil® formulations and processing equipment.
Download Specs →Common Questions
Frequently Asked Questions
The most common questions about tire flat-proofing with Poly-Fil®.
What is tire flat-proofing?
Tire flat-proofing is the process of replacing the air inside a pneumatic tire with a two-component polyurethane fill. The polyurethane cures into a flexible, shock-absorbing elastomer core that retains the tire's natural flex while eliminating punctures, blowouts, and the need for ongoing inflation maintenance.
Which Poly-Fil® formulation should I use?
It depends on your equipment, load, and operating speed. Poly-Fil® 30 covers the majority of applications. Use Poly-Fil® LP for flotation tires requiring a soft ride, Poly-Fil® HP for stratocranes and zero-deflection needs, Poly-Fil® 22 for slightly firmer general use, and Poly-Fil® Aqua for aerial work platforms operating under 5 MPH. Our specialists can help you select the right product for your application.
How long does the flat-proofing process take?
The process involves overnight pre-stretching of the tire, followed by pumping, pressurizing, and curing at the proper time and temperature. Total turnaround typically runs 24–48 hours depending on tire size and formulation. Once cured, the tire is ready for service and lasts the full tread life without maintenance.
Can flat-proofed tires be retreaded?
Yes — properly flat-proofed tires using Poly-Fil® can be retreaded by qualified retreaders. The polyurethane core remains intact through the retread process, extending the total service life of the tire and providing better return on investment.
Is Poly-Fil® environmentally responsible?
Yes. Poly-Fil® offers a recycled-fill process that reuses post-consumer polyurethane, reducing landfill waste. Poly-Fil® Aqua features a water-based catalyst that lowers petrochemical use and carbon footprint. All Poly-Fil® products are manufactured in our Santa Fe Springs, California facility.
What's the maximum operating speed for flat-proofed tires?
This depends on the formulation. Poly-Fil® 30 can run up to 55 MPH for 4-hour periods and is rated for all-day operation at 35 MPH. Poly-Fil® HP and Poly-Fil® Aqua are designed for slower-moving equipment. Match the formulation to your equipment's typical operating profile for best results.
Do I need certified technicians to install Poly-Fil®?
Yes. Flat-proofing is a precision process that should only be performed by Poly-Fil® certified technicians using proper processing equipment. We provide dealer and technician training with ongoing certification to ensure consistent, safe installations across our dealer network.
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