(ANN ARBOR, Michigan – April 20, 2011)

Kaydon Corporation (NYSE: KDN) will hold its conference call for first quarter 2011 earnings on Friday, May 6, 2011. The conference call will begin at 11:00 a.m. Eastern time and will follow the Company’s release of first quarter 2011 earnings prior to the call on that same day.

The conference call can be accessed telephonically in a listen-only mode by dialing 1-888-599-8692 and providing the following passcode number: 800500.Participants are asked to dial in 10 minutes prior to the scheduled start time of the call.

Alternatively, interested parties are invited to listen to the conference call via the internet by logging on the web at the following address:

http://w.on24.com/r.htm?e=307251&s=1&k=46582586EBA81ECFB5EE111DFD1258CD

or by logging on the Kaydon Corporation website at:

http://www.kaydon.com

and accessing the conference call at the “First Quarter 2011 Conference Call” icon.

To accommodate those that are unable to listen at the scheduled start time, a replay of the conference call will be available telephonically beginning on Friday, May 6, 2011 at 2:00 p.m. Eastern time through Thursday, May 12, 2011 at 2:00 p.m. Eastern time. The replay is accessible by dialing 1-888-203-1112 and providing the following passcode number: 3720227.

Additionally, interested parties can access an archive of the conference call on the Kaydon Corporation website at http://www.kaydon.com.

Kaydon Corporation is a leading designer and manufacturer of custom
engineered, performance-critical products, supplying a broad and diverse group of alternative energy, industrial, aerospace, medical and electronic equipment, and aftermarket customers.

Contacts: James O’Leary
Chairman and Chief Executive Officer
(734) 680-2025

Peter C. DeChants
Senior Vice President, Chief Financial Officer
(734) 680-2009

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