Material Technologies, Inc. Conducts Beta Tests
on Los Angeles and New York Bridges
Tuesday June 8, 9:30 am ET

LOS ANGELES--(BUSINESS WIRE)--June 8, 2004--Material Technologies, Inc. (MATECH) (OTCBB: MTNA - News) today announced that it has completed beta tests (testing before commercial release) of its crack detection Electrochemical Fatigue Sensor (EFS) device on a bridge in California and one in New York.

The California bridge is in Culver City, a suburb of Los Angeles; and the New York bridge is in the city of Babylon, Long Island.

For each of these bridges EFS sensors were placed at presumed fatigue-critical locations, i.e., those areas most likely to have fatigue cracks, and a heavy truck traversed the bridge to induce significant loads. The Babylon bridge also had strain gages installed to monitor stress levels at these critical locations. Both bridges were cross-checked using an eddy current non-destructive test to verify the EFS findings.

No cracks were detected in either bridge by EFS or the eddy current test. The Culver City bridge was recently upgraded for earthquake safety, and the Babylon bridge is relatively new (four years old); its measured stresses were well below levels that would induce fatigue cracks, so the absence of cracks in each bridge was not unexpected.

Matech expects to be conducting additional beta tests on bridges in Ohio, Massachusetts, and additional bridges in California. These other bridges are considerably older and more likely to have some fatigue damage.

"These beta tests are a very important step in our development and we are very pleased to have the interest and support of the cognizant engineering authorities. These inspections will take place over the next several months, leading up the inspection of the bridges in Pennsylvania, as previously announced in the press release dated December 9, 2003," said Robert M. Bernstein, Matech's President and Chief Executive Officer.

MATECH is engaged in the research and development of metal fatigue detection, measurement, and monitoring technologies. As such, the Company has developed a suite of devices for the non-destructive testing (NDT) of metal fatigue and monitoring of structural integrity. These technologies can be applied in virtually any industry in which metal is a significant structural component; i.e.: Bridges, Aerospace, Turbine Engines, Oil & Gas, Construction, Shipping, etc.

Safe Harbor Statement under the Private Securities Litigation Reform Act of 1995: Statements in this document looking forward in time involve risks and uncertainties, and therefore actual results may be materially different. Factors that could cause actual results to differ include activity levels in the securities markets and other risk factors such as customer order rates, cancellations, late delivery of customer components, late system delivery, production delays, dependence upon certain customers, dependencies upon key executives, competition, product liability risk, control by management, and other risks detailed in the applicable U.S. Securities and Exchange Commission requirements.

Contact:
Material Technologies, Inc.
Robert M. Bernstein, 310-208-5589

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