Exhibit 99.1

RPM Reports Fiscal 2011 Second-Quarter Results

	•		Second-quarter net sales increase 5% over pro-forma prior year
	•		Second-quarter net income and earnings per share improve slightly over pro-forma prior year
	•		Company affirms full-year guidance for fiscal 2011

MEDINA, OH — January 6, 2011 — RPM International Inc. (NYSE: RPM) today reported that on a pro-forma basis, improvements were realized in net sales, net income and earnings per share for its fiscal 2011 second quarter ended November 30, 2010. Prior-year pro-forma results assume that the deconsolidation of its Specialty Products Holding Corp. (SPHC) and subsidiaries, which eliminated approximately $300 million in annual revenues from the company’s industrial segment beginning June 1, 2010, occurred before fiscal 2010.

Second-Quarter Results

On a pro-forma basis, net sales, net income and earnings per share all posted improvements. Net sales grew 5.3% to $826.3 million from a pro-forma $784.5 million, while net income attributable to RPM stockholders was up 2.3%, to $48.8 million from a pro-forma $47.7 million a year ago. Diluted earnings per share increased 2.7% to $0.38 from a pro-forma $0.37 in the fiscal 2010 second period. Consolidated EBIT grew 2.7%, to $89.4 million from a pro-forma $87.1 million in the year-ago second quarter.

“On a prior-year pro-forma basis, which offers a better comparison to current-year actual results, RPM’s industrial segment continued a trend of year-over-year sales increases on the strength of our businesses concentrated in maintenance, repair and infrastructure, while our consumer segment faced the challenges of tough comparisons following record results in the fall of 2009. Both segments remain challenged by higher raw material costs, mainly due to capacity reductions by suppliers, which has exerted downward pressure on our gross margins,” stated Frank C. Sullivan, chairman and chief executive officer.

On an as reported basis, RPM’s net sales of $826.3 million were down 3.8% from the $858.7 million reported in the fiscal 2010 second quarter. Net income attributable to RPM stockholders was off 12.7%, to $48.8 million from $55.9 million in the year-ago second quarter, while earnings per diluted share were down 11.6% to $0.38 from $0.43 in the fiscal 2010 second quarter. Consolidated earnings before interest and taxes (EBIT) dropped 4.1% to $89.4 million from $93.4 million a year ago.

Second-Quarter Segment Sales and Earnings

On a pro-forma basis, industrial segment sales grew 8.0% to $582.5 million in the fiscal 2011 second quarter from a pro-forma $539.2 million a year ago. Organic sales improved 4.3%, which were offset by 1.0% in foreign exchange translation losses, and acquisition growth added 3.7%. Industrial segment EBIT increased 0.7%, to $68.7 million from a pro-forma $68.2 million in the fiscal 2010 second quarter.

RPM Reports Fiscal 2011 Second-Quarter Results
January 6, 2011
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“Industrial sales growth in the second quarter continued to benefit from strong sales comparisons in corrosion control coatings and high performance polymer flooring, while domestic and international sealants lines continued to struggle in the face of weak new construction markets,” Sullivan stated.

RPM’s consumer segment, largely unaffected by the deconsolidation, had a 0.6% decline in net sales to $243.8 million from a pro-forma $245.2 million in the fiscal 2010 second quarter. Organic sales were off 1.4%, including foreign exchange translation losses of 0.6%, while acquisition growth added 0.8%. Consumer segment EBIT fell 14.4%, to $27.3 million from a pro-forma $31.9 million a year ago.

“Our consumer lines maintained or grew their market share, despite challenges in their end markets and tough prior-year comparisons,” stated Sullivan.

Corporate and other expenses were lower by approximately $7.6 million, due primarily to insurance recoveries of $2.9 million, ongoing expense improvements of $2.8 million and lower acquisition related costs of $1.8 million.

Cash Flow and Financial Position

For the first half of fiscal 2011, cash from operations was $183.1 million, compared to $184.7 million in the first half of fiscal 2010. Capital expenditures of $15.3 million compare to depreciation of $26.8 million over the same period in fiscal 2011. Total debt at the end of the first half was $925.1 million, compared to $928.6 million at the end of fiscal 2010 and $906.2 million at the end of the second quarter of fiscal 2010. RPM’s net (of cash) debt-to-total capitalization ratio was 34.5%, compared to 39.8% at May 31, 2010, and both remain at the low end of the company’s historic norms. “Our strong cash and liquidity position continues to support our active acquisition pipeline, as well as internal investment and our cash dividend. At November 30, 2010, liquidity, including cash and long-term committed available credit, stood at $807.6 million,” Sullivan stated.

First-Half Sales and Earnings

On a pro-forma basis, fiscal 2011 first-half net sales, net income and earnings per share all improved. Net sales increased 5.8% to $1.72 billion from a pro-forma $1.63 billion during the first six months of fiscal 2010. Net income attributable to RPM stockholders improved 5.7% to $117.8 million from a pro-forma $111.4 million in the fiscal 2010 first half. Diluted earnings per share attributable to RPM stockholders grew 5.8% to $0.91 from a pro-forma $0.86 a year ago. Consolidated EBIT increased 5.5% to $211.4 million from a pro-forma $200.2 million during the first six months of fiscal 2010.

On an as reported basis, net sales for the first half of fiscal 2011 declined 3.0% to $1.72 billion from the $1.77 billion reported a year ago. First-half net income attributable to RPM stockholders declined 8.6% to $117.8 million from $128.9 million reported during the first six months of fiscal 2010. Diluted earnings per share attributable to RPM stockholders fell 9.0% to $0.91 in the fiscal 2011 first half from $1.00 a year ago. Consolidated EBIT was $211.4 million, down 1.3% from the $214.1 million reported in the fiscal 2010 first half.

RPM Reports Fiscal 2011 Second-Quarter Results
January 6, 2011
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First-Half Segment Sales and Earnings

First-half sales for RPM’s industrial segment improved 8.7%, to $1.18 billion from a pro-forma $1.09 billion in the fiscal 2010 first half. The organic sales increase was 5.1%, offset by net foreign exchange losses of 1.1%, while acquisition growth added 3.6%. Industrial segment EBIT grew 4.3% to $152.0 million from a pro-forma $145.7 million in the fiscal 2010 first half.

First-half sales for the consumer segment declined 0.2% to $536.3 million from a pro-forma $537.2 million reported in the first half of fiscal 2010. Organic sales dropped by 0.8%, including net foreign exchange losses of 0.6%, offset by acquisition growth of 0.7%. Consumer segment EBIT fell 7.3%, to $76.3 million from a pro-forma $82.4 million in the first half a year ago.

UK Drainage Systems Provider Acquired

On December 21, 2010, RPM announced that its Performance Coatings Group acquired Pipeline & Drainage Systems Ltd. (PDS), a leading supplier of curb, bridge and channel drainage products for construction and infrastructure markets, primarily in the United Kingdom and Ireland. Based in Wakefield, England, PDS has annual sales of approximately $8 million. Terms of the transaction, which is expected to be accretive to earnings within one year, were not disclosed.

Business Outlook

“Our year-to-date results are on target for achieving the fiscal 2011 guidance we announced on July 26, 2010, which anticipated sales growth of between 4% and 5% to approximately $3.25 billion from a pro-forma base of $3.12 billion in fiscal 2010 and growth in diluted earnings per share to a range of $1.35 to $1.40, up from a pro-forma $1.26 in fiscal 2010. We expect a loss for the seasonally weak fiscal third quarter ending February 28, 2011, but anticipate a strong fiscal fourth quarter. Our industrial segment should continue its strong performance in the back half of this fiscal year, with signs of improvement in the depressed commercial construction market this spring, while consumer sales are expected to be relatively flat as they face very strong prior-year comparisons, combined with consumer uncertainty. We anticipate that raw material challenges will persist through the remainder of this fiscal year,” Sullivan stated.

Webcast and Conference Call Information

Management will host a conference call to further discuss these results beginning at 10:00 a.m. EST today. The call can be accessed by dialing 866-543-6407 or 617-213-8898 for international callers. Participants are asked to call the assigned number approximately 10 minutes before the conference call begins. The call, which will last approximately one hour, will be open to the public, but only financial analysts will be permitted to ask questions. The media and all other participants will be in a listen-only mode.

For those unable to listen to the live call, a replay will be available from approximately 1:00 p.m. EST on January 6, 2011 until 11:59 p.m. EST on January 13, 2011. The replay can be accessed by dialing 888-286-8010 or 617-801-6888 for international callers. The access code is 19689874. The call also

RPM Reports Fiscal 2011 Second-Quarter Results
January 6, 2011
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will be available both live and for replay, and as a written transcript, via the RPM web site at www.rpminc.com.

About RPM

RPM International Inc., a holding company, owns subsidiaries that are world leaders in specialty coatings, sealants, building materials and related services serving both industrial and consumer markets. RPM’s industrial products include roofing systems, sealants, corrosion control coatings, flooring coatings and specialty chemicals. Industrial brands include Stonhard, Tremco, illbruck, Carboline, Euco, Flowcrete and Universal Sealants. RPM’s consumer products are used by professionals and do-it-yourselfers for home maintenance and improvement and by hobbyists. Consumer brands include Zinsser, Rust-Oleum, DAP, Varathane and Testors. Additional details are available at www.rpminc.com.

For more information, contact Robert L. Matejka, senior vice president and chief financial officer, at 330-273-5090 or rmatejka@rpminc.com.

# # #

This press release contains “forward-looking statements” relating to our business. These forward-looking statements, or other statements made by us, are made based on our expectations and beliefs concerning future events impacting us, and are subject to uncertainties and factors (including those specified below) which are difficult to predict and, in many instances, are beyond our control. As a result, our actual results could differ materially from those expressed in or implied by any such forward-looking statements. These uncertainties and factors include (a) global markets and general economic conditions, including uncertainties surrounding the volatility in financial markets, the availability of capital and the effect of changes in interest rates, and the viability of banks and other financial institutions; (b) the prices, supply and capacity of raw materials, including assorted pigments, resins, solvents and other natural gas- and oil-based materials; packaging, including plastic containers; and transportation services, including fuel surcharges; (c) continued growth in demand for our products; (d) legal, environmental and litigation risks inherent in our construction and chemicals businesses and risks related to the adequacy of our insurance coverage for such matters; (e) the effect of changes in interest rates; (f) the effect of fluctuations in currency exchange rates upon our foreign operations; (g) the effect of non-currency risks of investing in and conducting operations in foreign countries, including those relating to domestic and international political, social, economic and regulatory factors; (h) risks and uncertainties associated with our ongoing acquisition and divestiture activities; (i) risks related to the adequacy of our contingent liability reserves; (j) risks and uncertainties associated with the SPHC bankruptcy proceedings; and (k) other risks detailed in our filings with the Securities and Exchange Commission, including the risk factors set forth in our Annual Report on Form 10-K for the year ended May 31, 2010, as the same may be updated from time to time. We do not undertake any obligation to publicly update or revise any forward-looking statements to reflect future events, information or circumstances that arise after the date of this release.

CONSOLIDATED STATEMENTS OF INCOME
IN THOUSANDS, EXCEPT PER SHARE DATA
UNAUDITED

		AS REPORTED																	PRO FORMA (a)
		Three Months Ended								Six Months Ended									Three Months Ended				Six Months Ended
		November 30,								November 30,									November 30,				November 30,
		2010				2009				2010				2009					2009				2009
Net Sales		$	826,343			$	858,658			$	1,721,153			$	1,774,611				$	784,453			$	1,627,477
Cost of sales			486,846				495,447				1,006,230				1,017,570					450,042				929,126
Gross profit			339,497				363,211				714,923				757,041					334,411				698,351
Selling, general & administrative expenses			250,070				269,853				503,491				542,999					247,342				498,115
Interest expense			16,468				14,672				32,510				27,469					14,667				27,458
Investment (income), net			(4,309	)			(2,057	)			(6,286	)			(3,151	)				(2,023	)			(2,993	)
Income before income taxes			77,268				80,743				185,208				189,724					74,425				175,771
Provision for income taxes			23,765				24,351				56,711				60,254					21,959				54,991
Net income			53,503				56,392				128,497				129,470					52,466				120,780
Less: Net income attributable to noncontrolling interests			4,712				499				10,710				552					4,779				9,365
Net income attributable to RPM International Inc. Stockholders		$	48,791			$	55,893			$	117,787			$	128,918				$	47,687			$	111,415
Earnings per share of common stock attributable to RPM International Inc. Stockholders:
Basic (b)		$	0.38			$	0.44			$	0.91			$	1.00				$	0.37			$	0.87
Diluted (b)		$	0.38			$	0.43			$	0.91			$	1.00				$	0.37			$	0.86
Average shares of common stock outstanding — basic (b)			127,012				127,373				127,491				126,868					127,373				126,868
Average shares of common stock outstanding — diluted (b)			127,670				129,164				128,050				127,378					128,073				127,378

SUPPLEMENTAL SEGMENT INFORMATION

IN THOUSANDS

UNAUDITED

		AS REPORTED																	PRO FORMA (a)
		Three Months Ended								Six Months Ended									Three Months Ended				Six Months Ended
		November 30,								November 30,									November 30,				November 30,
		2010				2009				2010				2009					2009				2009
Net Sales:
Industrial Segment		$	582,508			$	613,496			$	1,184,822			$	1,237,523				$	539,246			$	1,090,283
Consumer Segment			243,835				245,162				536,331				537,088					245,207				537,194
Total		$	826,343			$	858,658			$	1,721,153			$	1,774,611				$	784,453			$	1,627,477
Income Before Income Taxes (b):
Industrial Segment
Income Before Income Taxes (b)		$	67,672			$	74,421			$	150,151			$	159,300				$	67,901			$	145,234
Interest (Expense), Net (c)			(1,008	)			(257	)			(1,869	)			(367	)				(287	)			(514	)
EBIT (d)		$	68,680			$	74,678			$	152,020			$	159,667				$	68,188			$	145,748
Consumer Segment
Income Before Income Taxes (b)		$	27,352			$	31,784			$	76,379			$	81,980				$	31,940			$	82,360
Interest (Expense), Net (c)			20				(4	)			30				(10	)				(4	)			(9	)
EBIT (d)		$	27,332			$	31,788			$	76,349			$	81,990				$	31,944			$	82,369
Corporate/Other
(Expense) Before Income Taxes (b)		$	(17,756	)		$	(25,462	)		$	(41,322	)		$	(51,556	)			$	(25,416	)		$	(51,823	)
Interest (Expense), Net (c)			(11,171	)			(12,354	)			(24,385	)			(23,941	)				(12,353	)			(23,942	)
EBIT (d)		$	(6,585	)		$	(13,108	)		$	(16,937	)		$	(27,615	)			$	(13,063	)		$	(27,881	)
Consolidated
Income Before Income Taxes (b)		$	77,268			$	80,743			$	185,208			$	189,724				$	74,425			$	175,771
Interest (Expense), Net (c)			(12,159	)			(12,615	)			(26,224	)			(24,318	)				(12,644	)			(24,465	)
EBIT (d)		$	89,427			$	93,358			$	211,432			$	214,042				$	87,069			$	200,236

CONSOLIDATED BALANCE SHEETS
IN THOUSANDS

		November 30, 2010				November 30, 2009				May 31, 2010
		(Unaudited)				(Unaudited)
Assets
Current Assets
Cash and cash equivalents		$	299,157			$	363,928			$	215,355
Trade accounts receivable			595,873				608,588				654,435
Allowance for doubtful accounts			(21,198	)			(25,299	)			(20,525	)
Net trade accounts receivable			574,675				583,289				633,910
Inventories			433,792				434,230				386,982
Deferred income taxes			20,524				44,489				19,788
Prepaid expenses and other current assets			194,218				204,388				194,126
Total current assets			1,522,366				1,630,324				1,450,161
Property, Plant and Equipment, at Cost			953,128				1,070,943				924,086
Allowance for depreciation and amortization			(574,981	)			(614,989	)			(541,559	)
Property, plant and equipment, net			378,147				455,954				382,527
Other Assets
Goodwill			794,092				871,393				768,244
Other intangible assets, net of amortization			309,466				359,762				303,159
Deferred income taxes, non-current			—				71,175				—
Other			114,484				89,931				99,933
Total other assets			1,218,042				1,392,261				1,171,336
Total Assets		$	3,118,555			$	3,478,539			$	3,004,024
Liabilities and Stockholders’ Equity
Current Liabilities
Accounts payable		$	274,313			$	249,432			$	299,596
Current portion of long-term debt			2,674				2,940				4,307
Accrued compensation and benefits			115,757				115,749				136,908
Accrued loss reserves			63,751				74,813				65,813
Asbestos-related liabilities			—				75,000				—
Other accrued liabilities			143,746				145,682				124,870
Total current liabilities			600,241				663,616				631,494
Long-Term Liabilities
Long-term debt, less current maturities			922,463				903,285				924,308
Asbestos-related liabilities			—				377,847				—
Other long-term liabilities			255,797				226,028				243,829
Deferred income taxes			55,773				25,920				43,152
Total long-term liabilities			1,234,033				1,533,080				1,211,289
Total liabilities			1,834,274				2,196,696				1,842,783
Stockholders’ Equity
Preferred stock; none issued
Common stock (outstanding 130,037; 129,490; 129,918)			1,300				1,295				1,299
Paid-in capital			733,813				795,080				724,089
Treasury stock, at cost			(61,586	)			(40,237	)			(40,686	)
Accumulated other comprehensive (loss) income			(52,547	)			17,676				(107,791	)
Retained earnings			566,438				504,636				502,562
Total RPM International Inc. stockholders’ equity			1,187,418				1,278,450				1,079,473
Noncontrolling interest			96,863				3,393				81,768
Total equity			1,284,281				1,281,843				1,161,241
Total Liabilities and Stockholders’ Equity		$	3,118,555			$	3,478,539			$	3,004,024

CONSOLIDATED STATEMENTS OF CASH FLOWS
IN THOUSANDS
UNAUDITED

		Six Months Ended
		November 30,
		2010				2009
Cash Flows From Operating Activities:
Net income		$	128,497			$	129,470
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation			26,788				31,107
Amortization			9,906				11,128
Deferred income taxes			5,323				18,924
Stock-based compensation expense			6,027				5,156
Other			(64	)			(861	)
Changes in assets and liabilities, net of effect from purchases and sales of businesses:
Decrease in receivables			66,393				59,658
(Increase) in inventory			(44,880	)			(26,394	)
(Increase) in prepaid expenses and other current and long-term assets			(11,155	)			(723	)
(Decrease) in accounts payable			(27,969	)			(47,476	)
(Decrease) in accrued compensation and benefits			(21,700	)			(8,697	)
(Decrease) in accrued loss reserves			(2,092	)			(2,578	)
Increase in other accrued liabilities			45,067				47,160
Payments made for asbestos-related claims							(37,481	)
Other			2,973				6,301
Cash From Operating Activities			183,114				184,694
Cash Flows From Investing Activities:
Capital expenditures			(15,333	)			(8,287	)
Acquisition of businesses, net of cash acquired			(20,669	)			(9,042	)
Purchase of marketable securities			(37,282	)			(38,809	)
Proceeds from sales of marketable securities			38,828				36,658
Other			(1,324	)			(322	)
Cash (Used For) Investing Activities			(35,780	)			(19,802	)
Cash Flows From Financing Activities:
Additions to long-term and short-term debt			24,913				304,203
Reductions of long-term and short-term debt			(28,391	)			(327,133	)
Cash dividends			(53,911	)			(52,237	)
Repurchase of stock			(20,916	)
Exercise of stock options			2,614				5,294
Cash (Used For) Financing Activities			(75,691	)			(69,873	)
Effect of Exchange Rate Changes on Cash and Cash Equivalents			12,159				15,522
Net Change in Cash and Cash Equivalents			83,802				110,541
Cash and Cash Equivalents at Beginning of Period			215,355				253,387
Cash and Cash Equivalents at End of Period		$	299,157			$	363,928