Exhibit 99.1

           Rogers Corporation Updates Guidance for the Third Quarter


    ROGERS, Conn.--(BUSINESS WIRE)--Sept. 20, 2004--Rogers Corporation
(NYSE:ROG) today provided an update regarding its third quarter
guidance. The Company now expects its third quarter net sales to be
between $86 and $88 million, up 52% to 55% over the third quarter last
year, but down from the July guidance of $87 to $95 million. Net
earnings for the quarter are now expected to be $0.36 to $0.40 per
diluted share, which is lower than the previous guidance range of
$0.59 to $0.67 per diluted share.
    Robert D. Wachob, President and CEO, stated, "From October 2003
through August 2004 our focus has been satisfying our customers'
rapidly increasing demands. This required acquiring sufficient raw
materials, avoiding raw material price increases, hiring and training
almost 500 new employees, and trying to increase the throughput of our
manufacturing processes to squeeze more capacity from our existing
equipment. We were prepared, if needed, to manufacture more than $100
million of product in the third quarter if the market accelerated;
however, some of our markets did not perform as anticipated and
several major customers revealed they have excess inventory. As I
describe below, there are a number of factors which will impact our
third quarter results."

    Printed Circuit Materials

    "Both sales and profits within Printed Circuit Materials will
decline. The high frequency unit's profits will be affected by more
than $2.5 million compared to the second quarter due to the impact of
lower sales and a significant quality problem affecting about $3
million of product. The quality problem was resolved; however, the
solution temporarily reduced our productivity in Europe by 50% through
most of the quarter. The flexible laminate business experienced sales
growth, but no profit increase over the second quarter as our existing
suppliers provided alternate grades of raw materials to alleviate
shortages. This caused customer requalification and a significant
short-term efficiency impact in our operations. To support the higher
flexible laminate sales, we utilized our Rogers Chang Chun
Technologies joint venture."

    High Performance Foams

    "Within High Performance Foams we had all available resources
focused on completing the Polyolefin start-up at Carol Stream, IL and
ceasing manufacturing in St. Johnsville, NY, which occurred at the end
of August. However, start-up in Carol Stream was more complex than we
anticipated resulting in higher costs. The diversion of resources and
the increased start-up costs affected this business segment's profits
which are expected to decline about $1.3 million, which is about the
same as the sales decline."

    Polymer Materials and Components

    "Polymer Materials and Components is on track with our
expectations for the quarter. In fact, the Elastomer Components
business transition to China is ahead of schedule. Durel brought two
new flexible lamp programs into full production with greater than
expected volumes; however, the poor yields associated with new program
start-up resulted in no additional profits."

    In closing, Mr. Wachob commented, "Although we are disappointed
with our current quarter's performance, our core businesses remain
solid. Nothing has happened to alter our strategy or the long-term
health of the business. I am confident in our ability to effectively
execute our plan for improved results in the fourth quarter. We remain
on track for 2004 to be an all-time record in sales and profits by a
wide margin."

    The Company expects to report earnings for the third quarter on
Wednesday, October 20, 2004, with a conference call on Thursday,
October 21, 2004.

    Safe Harbor Statement

    Statements in this news release that are not strictly historical
may be deemed to be "forward-looking" statements which should be
considered as subject to the many uncertainties that exist in the
Company's operations and environment. These uncertainties, which
include economic conditions, market demand and pricing, competitive
and cost factors, rapid technological change, new product
introductions, legal proceedings, and the like, are incorporated by
reference in the Rogers Corporation 2003 Form 10-K filed with the
Securities and Exchange Commission. Such factors could cause actual
results to differ materially from those in the forward-looking
statements.

    For more information, please contact the Company directly.


    CONTACT: Rogers Corporation
             Financial News:
             James M. Rutledge, 860-779-9605
             Fax: 860-779-5585
             or
             Editorial and Investors:
             Edward J. Joyce, 860-779-5705
             Fax: 860-779-5509
             edward.joyce@rogerscorporation.com
             http://www.rogerscorporation.com