Exhibit 99.1

News From:		For Immediate Release:
Kaydon Corporation		Global Engineered Solutions

KAYDON CORPORATION REPORTS FOURTH QUARTER
AND FULL YEAR 2010 RESULTS

Ann Arbor, Michigan — February 25, 2011

     Kaydon Corporation (NYSE:KDN) today announced its results for the fourth fiscal quarter and full year ended December 31, 2010.

Consolidated Results

     Sales in the fourth fiscal quarter of 2010 were $105.0 million, compared to sales of $108.9 million in the fourth quarter of 2009.

     Operating income was $17.1 million in the fourth quarter of 2010, compared to $18.0 million in the fourth quarter of 2009. The fourth quarter of 2010 included $1.4 million of net costs associated with due diligence efforts for acquisitions and a previously announced manufacturing consolidation program, partially offset by a small gain associated with the curtailment of certain postretirement benefits, while the fourth quarter of 2009 included gains of $1.3 million associated with the curtailment of postretirement benefits. Adjusting for these items, operating income was $18.5 million in the fourth quarter of 2010, compared to $16.7 million in the fourth quarter of 2009.

     Net income for the fourth quarter of 2010 was $11.3 million, compared to net income of $11.4 million in the fourth quarter of 2009. Diluted earnings per share equaled $.34 in the fourth quarter of 2010 and 2009. Adjusting for the items noted above, net income was $12.2 million, or $.37 per share on a diluted basis, in the fourth quarter of 2010 compared to $10.6 million, or $.31 per share on a diluted basis, in the fourth quarter of 2009.

     EBITDA equaled $24.6 million, or 23.5 percent of sales, during the fourth quarter of 2010, compared to $25.6 million, also 23.5 percent of sales, during the fourth quarter of 2009. EBITDA comparisons are also affected by the items noted above. Adjusting for these items, EBITDA was $25.7 million, or 24.5 percent of sales, in the fourth quarter of 2010, compared to $24.3 million, or 22.3 percent of sales, in the fourth quarter of 2009.

     The fourth quarter 2010 effective tax rate was 34.1 percent compared to 36.7 percent in the 2009 fourth quarter, due to the full availability of the Domestic Manufacturing Deduction and the planned permanent reinvestment of earnings of certain international operations.

     Full year 2010 sales totaled $464.0 million compared to $441.1 million for full year 2009. Sales growth in our core industrial businesses more than offset lower sales to our wind energy and military end markets. Full year 2010 diluted earnings per share totaled $1.67 per share compared to $1.37 per share in full year 2009. Adjusting for the items noted above, full year 2010 diluted earnings per share totaled $1.76 per share compared to $1.22 per share in full year 2009.

     This press release includes certain non-GAAP measures, including EBITDA, free cash flow, and as adjusted operating income, EBITDA, net income, and earnings per share — diluted. Readers should refer to the attached Reconciliation of Non-GAAP Measures exhibit for the reconciliations of the applicable GAAP measures to the non-GAAP measures presented.

Management Commentary

     James O’Leary, Chairman and Chief Executive Officer commented, “We are pleased with 2010 as we delivered solid results for both the full year and the most recent quarter. We were well positioned to benefit from a still strengthening industrial environment while effectively managing the long anticipated, public policy-driven moderation in both our renewable energy and military businesses. Through the fourth quarter, and continuing thus far into 2011, we see continued evidence, both tangible and anecdotal, of further improvement in most of our industrial businesses, notably in the heavy equipment, industrial machinery, medical and semiconductor markets. This strength will help offset moderation in wind energy, as the renewable energy business awaits the substantive energy policy required for sustained growth, and the expected decline of certain military programs, which had been in a “ramp up” mode in the prior year.

     “Both sales and orders from our industrial end markets increased over 20 percent in the fourth quarter of 2010. With increased order and quotation activity in traditionally later cycle sectors, such as heavy equipment and industrial machinery, we should continue to see strengthening in shipments as the year progresses.

     “Our performance in fiscal 2010 demonstrated the benefits of market leadership in well diversified end markets. During 2010, we generated the highest annual operating cash flow in Kaydon’s long history. Structural cost reductions made during the Great Recession, together with strong positioning in attractive industrial end markets, have produced consistent, solid results during both the worst recession in over a generation and a recovery that has thus far been below standard by many measures. Our ability to maximize free cash flow during this period has allowed us to return cash to our shareholders in the form of enhanced dividends and increased share repurchases while reinvesting in our business, both organically and through acquisition as illustrated by today’s announced agreement to acquire HAHN-Gasfedern GmbH.”

Segment Results and Review

     Friction Control Products sales in the fourth quarter of 2010 were $61.5 million, compared to $72.9 million in the 2009 fourth quarter. The decline, which we anticipated, was attributable to lower wind energy and military sales. Wind energy sales were $12.5 million in the fourth quarter of 2010 compared to $21.3 million in the fourth quarter of 2009. Fourth quarter 2010 sales to non-wind markets totaled $49.1 million compared to $51.6 million in the fourth quarter of 2009, as growth in sales to our industrial markets were offset by the anticipated wind down of a major military program.

     Fourth quarter 2010 Friction Control Products operating income totaled $11.8 million, compared to $12.7 million in the prior fourth quarter. Fourth quarter 2010 included $0.7 million in costs associated with a previously discussed manufacturing consolidation program. An improved mix, weighted more heavily towards industrial end markets, offset the margin decline from lower volume from wind energy and military sales.

     Velocity Control Products sales in the fourth quarter of 2010 were $14.9 million, compared to $11.8 million in the fourth quarter of 2009. Operating income for this segment totaled $2.8 million in the fourth quarter of 2010, compared to $1.3 million earned in the fourth quarter of 2009, due to improved sales.

     Other Industrial Products sales equaled $28.5 million in the fourth quarter of 2010, compared to $24.2 million in the prior year fourth quarter. Operating income equaled $3.5 million in the fourth quarter of 2010, compared to operating income of $3.1 million in the fourth quarter of 2009, due to improved sales.

Order Activity

     Orders were $100.8 million in the fourth quarter of 2010, compared to $77.2 million in the fourth quarter of 2009. Wind energy orders were $8.6 million in the fourth quarter of 2010, compared to $0.9 million in the fourth quarter of 2009. Full year 2010 non-wind orders have exceeded sales with a book-to-bill ratio of 1.02. Full year 2010 wind energy orders were $71.9 million, compared to $49.3 million in the full year of 2009. Backlog at December 31, 2010 was $200.9 million, compared to $205.0 million at October 2, 2010, and $218.5 million at December 31, 2009.

Financial Position and Free Cash Flow

     Free cash flow, a non-GAAP measure defined by the Company, was $23.4 million in the fourth quarter of 2010, compared to $19.7 million in the fourth quarter of 2009. For the full year of 2010, net cash generated from operating activities was a record $93.9 million, compared to $66.2 million in the full year of 2009, while full year 2010 free cash flow totaled a record $78.6 million compared to $55.4 million in the full year of 2009.

     On October 4, 2010, the Company paid common stock dividends of $.19 per share or an aggregate of $6.4 million. For the full year of 2010, the Company paid common stock dividends of $24.5 million. During the fourth quarter of 2010 the Company repurchased 500,500 shares of common stock for $18.3 million. For the full year of 2010, the Company repurchased 741,754 shares for $27.0 million. In aggregate, the Company returned $51.5 million to its shareholders in 2010 while investing almost $20 million in capital expenditures and growth programs to further enhance the long term value of our businesses.

     As of December 31, 2010, the Company had unrestricted cash totaling $286.6 million. During the third quarter of 2010 the Company entered into a $250 million senior revolving credit facility with a syndicate of banks which provides for borrowings by the Company for working capital and other general corporate purposes, including acquisitions. The Company had no borrowing against this facility and no other debt outstanding as of December 31, 2010.

About Kaydon

     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.

     Conference call information: At 11:00 a.m. Eastern time today, Kaydon will host a fourth quarter and full year 2010 earnings conference call. The conference call can be accessed telephonically in a listen-only mode by dialing 1-888-378-4361 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 on the internet at:

http://w.on24.com/r.htm?e=279179&s=1&k=E7A03E2D34AE4A6773785D0F34B37021

or by logging on to the Kaydon Corporation website at: http://www.kaydon.com and accessing the conference call at the “Fourth Quarter and Full Year 2010 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 at 2:00 p.m. Eastern time today through Friday, March 4, 2011 at 2:00 p.m. Eastern time. The replay is accessible by dialing 1-888-203-1112 and providing the following passcode number: 4594491.

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

# # #

     This press release contains forward-looking statements within the meaning of the Securities Exchange Act of 1934 regarding the Company’s plans, expectations, estimates and beliefs. Forward-looking statements are typically identified by words such as “believes,” “anticipates,” “estimates,” “expects,” “intends,” “will,” “may,” “should,” “could,” “potential,” “projects,” “approximately,” and other similar expressions, including statements regarding general economic conditions, competitive dynamics and the adequacy of capital resources. These forward-looking statements may include, among other things, projections of the Company’s financial performance, anticipated growth, characterization of and the Company’s ability to control contingent liabilities, and anticipated trends in the Company’s businesses. These statements are only predictions, based on the Company’s current expectations about future events. Although the Company believes the expectations reflected in the forward-looking statements are reasonable, it cannot guarantee future results, performance or achievements or that predictions or current expectations will be accurate. These forward-looking statements involve risks and uncertainties that could cause the Company’s actual results, performance or achievements to differ materially from those expressed or implied by the forward-looking statements.

     In addition, the Company or persons acting on its behalf may from time to time publish or communicate other items that could also be construed to be forward-looking statements. Statements of this sort are or will be based on the Company’s estimates, assumptions, and projections and are subject to risks and uncertainties that could cause actual results to differ materially from those included in the forward-looking statements. Kaydon does not undertake any responsibility to update its forward-looking statements or risk factors to reflect future events or circumstances except to the extent required by applicable law.

     Certain non-GAAP measures are presented in this press release. These measures should be viewed as supplemental data, rather than as substitutes or alternatives to the most comparable GAAP measures.

Contact:		James O’Leary Chairman and Chief Executive Officer (734) 680-2025   Peter C. DeChants Senior Vice President and Chief Financial Officer (734) 680-2009		READ IT ON THE WEB http://www.kaydon.com

KAYDON CORPORATION
CONSOLIDATED CONDENSED STATEMENTS OF OPERATIONS

		Fourth Quarter Ended								Full Year Ended
		December 31,				December 31,				December 31,				December 31,
		2010				2009				2010				2009
Net sales		$	104,963,000			$	108,855,000			$	463,988,000			$	441,145,000
Cost of sales			66,430,000				71,167,000				299,363,000				297,280,000
Gross profit			38,533,000				37,688,000				164,625,000				143,865,000
Selling, general and administrative expenses			21,428,000				19,727,000				83,006,000				72,527,000
Operating income			17,105,000				17,961,000				81,619,000				71,338,000
Interest expense			(98,000	)			(62,000	)			(231,000	)			(247,000	)
Interest income			171,000				108,000				486,000				537,000
Income before income taxes			17,178,000				18,007,000				81,874,000				71,628,000
Provision for income taxes			5,864,000				6,601,000				25,829,000				25,672,000
Net income		$	11,314,000			$	11,406,000			$	56,045,000			$	45,956,000
Earnings per share:
Basic		$	0.34			$	0.34			$	1.67			$	1.37
Diluted		$	0.34			$	0.34			$	1.67			$	1.37
Dividends declared per share		$	0.19			$	0.18			$	0.74			$	0.70

KAYDON CORPORATION
CONSOLIDATED CONDENSED BALANCE SHEETS

		December 31,				December 31,
		2010				2009
Assets:
Cash and cash equivalents		$	286,648,000			$	262,403,000
Accounts receivable, net			76,010,000				77,977,000
Inventories, net			88,253,000				88,796,000
Other current assets			16,384,000				16,601,000
Total current assets			467,295,000				445,777,000
Property, plant and equipment, net			169,597,000				175,716,000
Goodwill, net			143,428,000				143,891,000
Other intangible assets, net			18,047,000				21,552,000
Other assets			2,965,000				1,008,000
Total assets		$	801,332,000			$	787,944,000
Liabilities and Shareholders’ Equity:
Accounts payable		$	16,944,000			$	21,353,000
Accrued expenses			36,085,000				26,731,000
Total current liabilities			53,029,000				48,084,000
Long-term liabilities			39,165,000				39,895,000
Shareholders’ equity			709,138,000				699,965,000
Total liabilities and shareholders’ equity		$	801,332,000			$	787,944,000

KAYDON CORPORATION
CONSOLIDATED CONDENSED STATEMENTS OF CASH FLOWS

		Fourth Quarter Ended								Full Year Ended
		December 31,				December 31,				December 31,				December 31,
		2010				2009				2010				2009
Cash flows from operating activities:
Net income		$	11,314,000			$	11,406,000			$	56,045,000			$	45,956,000
Adjustments to reconcile net income to net cash from operating activities:
Depreciation			5,280,000				5,201,000				20,925,000				19,836,000
Amortization of intangible assets			872,000				1,072,000				3,585,000				4,283,000
Amortization of stock awards			1,037,000				1,017,000				4,035,000				4,121,000
Stock option compensation expense			323,000				319,000				1,314,000				1,300,000
Excess tax benefits from stock-based compensation			—				(113,000	)			(186,000	)			(52,000	)
Deferred financing fees			97,000				62,000				231,000				248,000
Non-cash postretirement benefits curtailment gain			(385,000	)			(1,308,000	)			(3,451,000	)			(7,613,000	)
Net change in receivables, inventories and trade payables			7,116,000				4,167,000				(2,417,000	)			(2,577,000	)
Contributions to qualified pension plans			(657,000	)			—				(2,271,000	)			(14,846,000	)
Net change in other assets and liabilities			2,478,000				231,000				16,054,000				15,525,000
Net cash from operating activities			27,475,000				22,054,000				93,864,000				66,181,000
Cash flows from investing activities:
Capital expenditures			(4,117,000	)			(2,401,000	)			(15,397,000	)			(11,986,000	)
Dispositions of property, plant and equipment			34,000				43,000				141,000				1,229,000
Proceeds from sales of investments			—				1,082,000				—				5,145,000
Net cash used in investing activities			(4,083,000	)			(1,276,000	)			(15,256,000	)			(5,612,000	)
Cash flows from financing activities:
Cash dividends paid			(6,356,000	)			(6,043,000	)			(24,477,000	)			(23,207,000	)
Purchase of treasury stock			(18,254,000	)			—				(27,043,000	)			(8,871,000	)
Credit facility issuance costs			(13,000	)			—				(1,948,000	)			—
Excess tax benefits from stock-based compensation			—				113,000				186,000				52,000
Proceeds from exercise of stock options			49,000				—				153,000				24,000
Net cash used in financing activities			(24,574,000	)			(5,930,000	)			(53,129,000	)			(32,002,000	)
Effect of exchange rate changes on cash and cash equivalents			(972,000	)			(286,000	)			(1,234,000	)			838,000
Net increase (decrease) in cash and cash equivalents			(2,154,000	)			14,562,000				24,245,000				29,405,000
Cash and cash equivalents — Beginning of period			288,802,000				247,841,000				262,403,000				232,998,000
Cash and cash equivalents — End of period		$	286,648,000			$	262,403,000			$	286,648,000			$	262,403,000

KAYDON CORPORATION
EARNINGS PER SHARE

		Fourth Quarter Ended								Full Year Ended
		December 31,				December 31,				December 31,				December 31,
		2010				2009				2010				2009
Earnings per share — Basic
Net income		$	11,314,000			$	11,406,000			$	56,045,000			$	45,956,000
Less: Net earnings allocated to participating securities — Basic			(119,000	)			(124,000	)			(602,000	)			(527,000	)
Income available to common shareholders — Basic		$	11,195,000			$	11,282,000			$	55,443,000			$	45,429,000
Weighted average common shares outstanding — Basic			32,935,000				33,226,000				33,112,000				33,250,000
Earnings per share — Basic		$	0.34			$	0.34			$	1.67			$	1.37
Earnings per share — Diluted
Net income		$	11,314,000			$	11,406,000			$	56,045,000			$	45,956,000
Less: Net earnings allocated to participating securities — Diluted			(119,000	)			(124,000	)			(602,000	)			(527,000	)
Income available to common shareholders — Diluted		$	11,195,000			$	11,282,000			$	55,443,000			$	45,429,000
Weighted average common shares outstanding — Diluted
Weighted average common shares outstanding — Basic			32,935,000				33,226,000				33,112,000				33,250,000
Potential dilutive shares resulting from stock options			22,000				23,000				25,000				17,000
Weighted average common shares outstanding — Diluted			32,957,000				33,249,000				33,137,000				33,267,000
Earnings per share — Diluted		$	0.34			$	0.34			$	1.67			$	1.37

KAYDON CORPORATION
Reportable Segment Information
(Amounts in thousands)

		Fourth Quarter Ended								Full Year Ended
		December 31,				December 31,				December 31,				December 31,
Net sales		2010				2009				2010				2009
Friction Control Products		$	61,533			$	72,929			$	299,009			$	296,420
Velocity Control Products			14,929				11,756				60,208				46,358
Other Industrial Products			28,501				24,170				104,771				98,367
Total consolidated net sales		$	104,963			$	108,855			$	463,988			$	441,145

		Fourth Quarter Ended								Full Year Ended
		December 31,				December 31,				December 31,				December 31,
Operating income		2010				2009				2010				2009
Friction Control Products		$	11,761			$	12,681			$	61,317			$	50,314
Velocity Control Products			2,843				1,297				14,265				6,488
Other Industrial Products			3,515				3,069				9,031				8,536
Total segment operating income			18,119				17,047				84,613				65,338
Items not allocated to segment operating income			(1,014	)			914				(2,994	)			6,000
Interest expense			(98	)			(62	)			(231	)			(247	)
Interest income			171				108				486				537
Income before income taxes		$	17,178			$	18,007			$	81,874			$	71,628

     The Company has two reporting segments: Friction Control Products and Velocity Control Products. The Company’s remaining operating segments, which do not meet the quantitative thresholds for separate disclosure and do not meet the criteria for aggregation with other operating segments to create an additional reporting segment, are combined and disclosed as “Other Industrial Products.” The Company’s Sealing Products operating segment no longer meets the quantitative threshold for separate disclosure as a reporting segment and its results are shown in the “Other Industrial Products” caption. Prior period results have been reclassified to conform to this presentation.

Kaydon Corporation
Reconciliation of Non-GAAP Measures
(Amounts in thousands)

		Fourth Quarter Ended								Full Year Ended
		December 31,				December 31,				December 31,				December 31,
Free cash flow, as defined (non-GAAP)		2010				2009				2010				2009
Net cash from operating activities (GAAP)		$	27,475			$	22,054			$	93,864			$	66,181
Capital expenditures, net of dispositions			(4,083	)			(2,358	)			(15,256	)			(10,757	)
Free cash flow, as defined (non-GAAP)		$	23,392			$	19,696			$	78,608			$	55,424

Kaydon’s management believes free cash flow, as defined above and a non-GAAP measure, is an important indicator of the Company’s ability to generate excess cash above levels required for capital investment to support future growth. However, it should be viewed as supplemental data, rather than as a substitute or alternative to the comparable GAAP measure.

		Fourth Quarter Ended								Full Year Ended
		December 31,				December 31,				December 31,				December 31,
EBITDA, as defined (non-GAAP)		2010				2009				2010				2009
Net income (GAAP)		$	11,314			$	11,406			$	56,045			$	45,956
Net interest (income)/expense			(73	)			(46	)			(255	)			(290	)
Provision for income taxes			5,864				6,601				25,829				25,672
Depreciation and amortization of intangible assets			6,152				6,273				24,510				24,119
Stock-based compensation expense (1)			1,360				1,336				5,349				5,421
EBITDA, as defined (non-GAAP)		$	24,617			$	25,570			$	111,478			$	100,878

Kaydon’s management believes EBITDA, as defined above and a non-GAAP measure, is a determinant of the Company’s capacity to access additional senior capital to enhance future profit growth and cash flow growth. In addition, EBITDA is widely used by financial analysts and investors, and is utilized in measuring compliance with financial covenants in the Company’s credit agreement. Also, EBITDA is the metric used to determine payments under the Company’s annual incentive compensation program for senior managers. However, EBITDA, as defined, should be viewed as supplemental data, rather than as a substitute or alternative to the comparable GAAP measure.

		Fourth Quarter Ended								Full Year Ended
		December 31,				December 31,				December 31,				December 31,
Operating income, as adjusted		2010				2009				2010				2009
Operating income (GAAP)		$	17,105			$	17,961			$	81,619			$	71,338
Manufacturing consolidation costs			740				—				3,665				—
Due diligence costs			1,027				—				3,989				197
Benefit plan curtailment (gains)			(385	)			(1,308	)			(3,451	)			(7,613	)
Operating income, as adjusted (non-GAAP)		$	18,487			$	16,653			$	85,822			$	63,922

EBITDA, as adjusted
EBITDA, as defined above (non-GAAP)		$	24,617			$	25,570			$	111,478			$	100,878
Manufacturing consolidation costs, net of depreciation			435				—				2,531				—
Due diligence costs			1,027				—				3,989				197
Benefit plan curtailment (gains)			(385	)			(1,308	)			(3,451	)			(7,613	)
EBITDA, as adjusted (non-GAAP)		$	25,694			$	24,262			$	114,547			$	93,462

Net income, as adjusted
Net income (GAAP)		$	11,314			$	11,406			$	56,045			$	45,956
Manufacturing consolidation costs (2)			487				—				2,514				—
Due diligence costs (2)			676				—				2,690				128
Benefit plan curtailment (gains) (2)			(253	)			(829	)			(2,330	)			(4,903	)
Net income, as adjusted (non-GAAP) (2)		$	12,224			$	10,577			$	58,919			$	41,181

Earnings per share - diluted, as adjusted
Earnings per share — Diluted (GAAP)		$	0.34			$	0.34			$	1.67			$	1.37
Manufacturing consolidation costs			0.01				—				0.08				—
Due diligence costs			0.02				—				0.08				—
Benefit plan curtailment (gains)			(0.01	)			(0.03	)			(0.07	)			(0.15	)
Earnings per share — Diluted, as adjusted (non-GAAP)		$	0.37			$	0.31			$	1.76			$	1.22

Kaydon’s management believes that certain non-GAAP measures of operating income, as adjusted, EBITDA, as adjusted, net income, as adjusted, and earnings per share — diluted, as adjusted, provide investors with additional information to assess the Company’s financial performance by creating better comparative data year over year. However, these measures should be viewed as supplemental data, rather than substitutes or alternatives to the comparable GAAP measures.