RPM International (RPM) S-3ASR Automatic shelf registration

Exhibit 12

RPM
RATIO OF EARNINGS TO FIXED CHARGES
Periods Ended May 31, 2006 through 2010

	9 Months Ended		Year Ended May 31,
	28-Feb-11		2010		2009			2008		2007		2006
Ratio of Earnings to Fixed Charges1		4.14		4.67		3.66			1.42		5.40		—
1 Calculated as follows					(income before income taxes) + (fixed charges)
							(fixed charges)

Fixed charges consist of interest expense, amortized expenses related to debt and an estimate of the interest portion of rental expense.

	9 Months Ended		Year Ended May 31,
(All numbers in thousands)	28-Feb-11		2010		2009		2008		2007		2006
Income before income tax		187,197		268,454		180,868		34,007		307,535		(122,475	)
Fixed charges		59,612		73,207		67,926		80,588		69,955		58,745
Total		246,809		341,661		248,794		114,595		377,490		(63,730	)