COSTA MESA, Calif.--June 7, 2007--Ceradyne, Inc. (Nasdaq:CRDN),
through its vehicle armor division, Ceradyne Vehicle Armor Systems,
and in conjunction with its teaming partner, Ideal Innovations, Inc.
of Arlington, Virginia, announced today the introduction of a
high-threat vehicle designated the "BULL."

   According to Marc King, Vice President of Armor Operations for
Ceradyne, the vehicle is specifically designed for close urban terrain
and can withstand the most lethal IED (improvised explosive device)
threats that are currently facing our ground forces in Iraq and
Afghanistan. Intended to complement the overall mission capabilities
of the MRAP (mine resistant ambush protected) class of vehicles, the
BULL's armor provides needed protection against explosively formed
penetrators (EFPs), the shaped charges that hit vehicles from the side
in close urban terrain, as well as survive conventional IED attacks
that have been used against coalition forces.

   "The BULL is a commercial derivative of a vehicle that
successfully passed limited testing by the U.S. Government. Whereas
the details of its complete capabilities remain classified, it has
clearly demonstrated a level of performance and crew survivability not
previously seen in other armored vehicles," said King. "We feel this
is a clear technological leap forward in crew survivability."

   In addition to the increase in crew survivability from the most
lethal threats, noted King, the BULL can be configured as a logistics
vehicle for the transport of cargo, fuel and other supplies providing
logistics crews the same increased level of protection as that being
provided to ground forces. Future procurements of the BULL are under
discussion with several government agencies, in addition to the
Department of Defense, who have expressed interest.

   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 press
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. These risks and
uncertainties are described in the Company's Annual Report on Form
10-K for the fiscal year ended December 31, 2006, and its Quarterly
Reports on Form 10-Q, as filed with the U.S. Securities and Exchange
Commission.

    CONTACT: Ceradyne, Inc.
             Marc King, V.P. Armor Operations
             (202) 223-9545
             or
             Silverman Heller Associates
             Phil Bourdillon/Gene Heller
             (310) 208-2550