Ceradyne, Inc. Receives Approximately $1.1 Million Ceramic Body Armor

    Business Editors

    COSTA MESA, Calif.--(BUSINESS WIRE)--April 21, 2005--Ceradyne, Inc. (Company) (Nasdaq:CRDN) announced the receipt of an order for approximately $1.1 million of its lightweight ceramic body armor components scheduled to be delivered in the second and third quarters of 2005.
    Joel Moskowitz, Ceradyne chief executive officer, commented: "These components are generally smaller shapes than full chest and back body armor and are used to protect other body areas of our soldiers. Ceradyne continues to develop improved compositions of lightweight ceramics and is also working with our customers to develop next generation shapes and uses."
    Ceradyne develops, manufactures and markets advanced technical ceramic products and components for defense, industrial, automotive/diesel and commercial applications. Additional information about the Company can be found at www.ceradyne.com.
    Except for the historical information contained herein, this news release contains forward-looking statements regarding future events and the future performance of Ceradyne that involve risks and uncertainties that could cause actual results to differ materially from those projected. Words such as "anticipates," "believes," "plans," "expects," "intends," "future," and similar expressions are intended to identify forward-looking statements. Other risks and uncertainties are described in the Company's Annual Report on Form 10-K for the fiscal year ended December 31, 2004, as filed with the Securities and Exchange Commission.

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CONTACT: Ceradyne, Inc. Joel P. Moskowitz,714-549-0421 x-261 or Silverman Heller Associates Dan Matsui/Gene Heller, 310-208-2550

KEYWORD: CALIFORNIA INDUSTRY KEYWORD: AUTOMOTIVE AEROSPACE/DEFENSE GOVERNMENT TRANSPORTATION MANUFACTURING MARKETING AGREEMENTS SOURCE: Ceradyne, Inc.

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