SOTROS

What Is

Tyrfil?

TyrFil™ is the leading polyurethane tire fill solution engineered to eliminate flat tires in Off-the-Road (OTR) equipment. By replacing air with a resilient synthetic elastomer, TyrFil completely removes the risk of flats, ensuring continuous operation even in the harshest and most demanding environments. It is pumped into OTR vehicle tires and cures into a flexible, durable material that acts as a shock absorber, offering exceptional ride quality and protection.

Unlike traditional flatproofing options such as solid tires, cores, or liners, TyrFil offers superior performance and long-term cost-effectiveness. Its advanced polyurethane composition delivers a perfect balance of flexibility and strength, making it the most efficient and reliable solution for industries where tire failure is not an option.

Eliminates 100% flat tires

Experience air-ride deflection

Utilize total tire life

Performance oriented Benefits

  • Eliminates 100% of flat tires
  • Lowers G-force impact to operator and equipment
  • Maintains constant internal pressure and distributes loads evenly
  • Extends tire life
  • Increases heat resistance
  • Eliminates rim slippage
  • Improves traction and stability
  • Retreadable—up to four times

Safety oriented Benefits

  • Prevents catastrophic blowouts
  • Eliminates Solid Shock and Pneumatic Bounce to operator and equipment
  • Improves vehicle stabilization, enhances ride and reduces operator fatigue
1

Pre-Stretch Tires

for 24 hours to compensate for in-service casing growth

2

Inject TyrFil

(ISO+CAT) through valve stem with the TyrFil Pump

3

Vent Carcass

with a hypodermic needle until the liquid flows out through the hole

4

Plug the Hole

witha nail or sheet metal screw and pressurize the tire with TyrFil to the recommended PSI

5

Lay the Tire

flat on a pallet

6

Cure

for 24 to 48 hours at 23°C

Tyrfil The only solution for Solid Shock

What is Solid Shock?
Solid Shock refers to the harsh impact of G-force vibration transmission to heavy industrial vehicle operators and their equipment from solid aperture tires. Not only is Solid Shock a major source of wear and tear on machines, but it’s also a leading cause of operator injury.

Solid Shock to Operator
Daily exposure to Solid Shock can cause the operator to experience head-aches, lower back pain, joint pain and fatigue. Prolonged exposure can lead to Whole Body Vibration (WBV), a serious physiological condition.

Solid Shock to Equipment
Solid Shock transfers unnecessary excessive G-force on equipment causing costly and premature wear and tear.

Reducing Solid Shock and Increasing Productivity Begins with Tire Selection, As a part of any Solid Shock prevention program, tire choice is paramount to decreasing exposure to excessive G-force transmissions and the resulting adverse health risks.

Tyrfil VS Pneumatic tire VS Solid tire

For overall safety and performance, only Tyrfil checks only every box
Tyrfil
Pneumatic Tires
Solid Aperture Tires
Eliminates 100% of flat tires
✅
✅
Prevents Catastrophic blowouts
✅
✅
Eliminates Pneumatic Bounce to operator and equipment
✅
Improves Vehicle Stabilization
✅

Frequent Objections to Tyrfil

1. WEARS OUT TOO FAST!

  • The proper PSI and product for the application will result in optimum wear
  • Remember, use the right tire for the application

2. TOO HEAVY!

  • TyrFil is lighter than most solid tire options
  • TyrFil is a supporting weight, not a hanging weight

3. IT RIDES TOO HARD!

  • Lowers G-force impact to operator and equipment
  • Reduces operator fatigue
  • Less stress on machine components

Since 2005, TyrFil has recycled more than 30 million pounds of tire material

TYRFIL is the only flatproofing solution with a closed-loop system that reduces carbon footprint and saves money

Since 2005

Tyrfil in Defense Sector

TyrFil RePneuTV is a high-performance liquid polyurethane pumped into the tire through the valve stem, replacing all air and curing to a resilient, synthetic ballistic core. The material is delivered via a positive displacement pump at a one-to-one ratio, achieving the desired final pressure, and cures to 30 +/- 2 Shore-A within 24 hours without external heat. This technology ensures troops remain expeditionary and mobile, even with interdicted tires, to complete missions and reach safety zones. Optimal military tire performance demands specific criteria to sustain mobility and mission success under extreme conditions.

  • Provide bullet resistance - can be hit with small arms fire or even .50 caliber fire and still perform
  • Eliminate 100% of flat tires
  • Prevent catastrophic blowouts
  • Resist shrapnel and battle debris
  • Mitigate damage from IED blasts
  • Improve traction and tire wear
  • Minimize vibration and g-force shock to operator, crew and equipment

List of tests conducted on Tyrfil

  • Roadwheel Endurance Test

    To test durability under extreme load

  • HMMWV Testing

    To compare performance of Runflat technology and RePneuTV filled tires after spike strip punctures

  • Fort Hood

    Endurance Evaluation: To Illustrate real world use, durability and performance of RePneuTV filled tires

  • NATC Testing

    Thermal Profile Testing: To compare the thermal profile of RePneuTV filled tires to Runflat tires

  • NATC Testing

    Spike Stipe Puncture Test: To compare performance of Runflat tires and RePneuTV filled tires after spike strip punctures

  • NATC Testing

    Ballistics Testing: To determine viability of RePneuTV filled tires to withstand damage from firearm projectiles and continue to perform

  • Vibration & G-Force Testing

    To compare the physical impact to the operator and equipment between using RePneuTV filled tires and Pneumatic tires in heavy equipment or off-road vehicles

Recyclability & Sustainability of Tyrfil

Our technologies enhance sustainability and cost-efficiency, maximizing tire life, boosting productivity, and enabling up to four retreads without performance loss—diverting millions of tires from landfills. TyrFil leads the industry as the only tire fill manufacturer with recycling technology, minimizing environmental impact from traditional flat-proofing. This innovation delivers both ecological and economic advantages for end-users.

  • Recycling and using up to 65% post-consumer tire fill
  • Eliminating up to 65% of the petrochemicals (including oil) normally required to fill an Off-the-Road (OTR) tire
  • Keeping used tire fill out of landfills and eliminating landfill disposal fees

Reduce

  • TyrFil™ significantly reduces the usage of oil, petrochemicals, toxic metals, and other environmentally harmful compounds
  • TyrFil™ tires last 20-30% longer than air-filled or solid tires requiring fewer overall tires

Reuse

  • Existing fill can be reused
  • TyrFil™ tires can be retreaded up to 4 times with no decrease in performance

Recycle

  • Using our innovative Recycling Technology, tires can be filled with up to 50% recycled materials

Disclaimer

The data presented herein is not intended for use by non-professional applica- tors, or those persons who do not purchase or utilize this product in the normal course of their business. The potential user must perform any pertinent test in order to determine the product’s performance and suitability in the intended application; final determination of qualification for said product in any particular application is the responsibility of the buyer/user