Amerityre Issues Update on FMVSS Testing for Run-Flat Tires

BOULDER CITY, Nev., Oct. 11, 2007 -- Amerityre Corporation , a leading developer of polyurethane elastomer tire technologies, today announced that it has made significant progress towards successfully completing Federal Motor Vehicle Safety Standard (FMVSS) 139 testing on its Arcus(R) run-flat pneumatic passenger car tire design. The Arcus(R) run-flat tire is a patented system designed to operate at normal air pressure, yet continue to perform normally for at least 200 miles without air.

In April 2004, Amerityre successfully completed certification of the Arcus(R) run-flat tire to FMVSS 109, the safety standard for pneumatic passenger car tires in effect at that time. No other company has produced a pneumatic polyurethane passenger car tire that has complied with that standard. Additionally, independent testing demonstrated that the Arcus(R) run-flat tire had 45% less rolling resistance than a comparable rubber run- flat car tire, resulting in more than a 12% increase in fuel economy.

As a result of industry tire recalls and associated vehicle safety concerns that occurred a few years ago, the U.S. Congress implemented the Tire Recall Enhancement, Accountability and Documentation (TREAD) Act and the safety standard for new pneumatic tires was revised. The resulting new standard for new pneumatic passenger car tires, FMVSS 139, became effective in September 2007.

Amerityre has been further developing the Arcus(R) run-flat tire to comply with FMVSS 139. Testing includes bead unseating and tire strength components similar to the testing required under FMVSS 109. The strenuous high-speed test component now subjects tires to speeds of 99 mph versus 85 mph under FMVSS 109, and the 34-hour endurance test is now run at 75 mph versus 50 mph for FMVSS 109. Amerityre has successfully completed these components of FMVSS 139.

Amerityre is now working to successfully complete the final testing segment, which was not a requirement under FMVSS 109. This segment determines the tire's low inflation pressure performance. In this test the tire is run at 75 mph at a reduced pressure of 20 psi for 90 minutes. The Arcus(R) run- flat tire design has come within 15 minutes of successfully completing this test.

Amerityre's analysis of the test data indicates that the thicker sidewalls that give the Arcus(R) run-flat tire its "run-flat" capability (up to 200 miles at 50 mph), impede the tire from successfully completing the low- pressure segment of the test. Since the 20 psi pressure used in the low- pressure segment is not sufficient to support the load, the tire essentially goes into the run-flat mode where it is supported only by its sidewalls. The test requirement of 75 miles per hour for 90 minutes at 100% rated load exceeds the 200 miles at 50 mph capability of the current design. Therefore, Amerityre is making modifications to the Arcus(R) run-flat tire design and related tooling in order to pass the low-pressure segment of the FMVSS 139 protocol. Amerityre's tire design and development personnel believe that this final test segment will be completed successfully.

"Passing FMVSS 139 testing on our passenger car tire design is a high priority for our company and will serve as the foundation for all future passenger car tire projects," commented Dr. Gary Benninger, Amerityre's President and Chief Executive Officer.

Amerityre also believes that the patented manufacturing processes it has developed to produce the passenger car tires will be more efficient than traditional tire manufacturing processes, in part because Amerityre's polyurethane compounds do not require the processing steps, extreme heat, and high pressure that are necessary to cure rubber. Using Amerityre's tire manufacturing technologies, tires can be produced that are cost-competitive, more durable, fuel efficient and environmentally friendly than existing rubber tires. Amerityre believes the inherent limitations of rubber emphasize the need for and potential benefits of using alternative materials, such as polyurethane compounds to produce car tires.

About Amerityre

Amerityre is actively engaged in the development of revolutionary new polyurethane elastomer tire technologies. Amerityre is commercializing its technologies through licensing agreements with strategic partners, co- development projects and the sale of equipment and its proprietary chemical formulations.

For more information on Amerityre, visit its website at http://www.amerityre.com/