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

Exhibit 12

RPM
RATIO OF EARNINGS TO FIXED CHARGES
Periods Ended May 31, 2003 through 2007

	6 Months Ended		Year Ended May 31,
	30-Nov-07		2007		2006			2005		2004		2003
Ratio of Earnings to Fixed Charges1		5.81		5.41		—			4.11		6.17		2.28
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.

	6 Months Ended		Year Ended May 31,
(All numbers in thousands)	30-Nov-07		2007		2006			2005		2004		2003
Income before income tax		181,062		307,535		(122,475	)		163,728		217,616		47,853
Fixed charges		37,621		69,787		58,733			52,614		42,123		37,268
Total		218,683		377,322		(63,742	)		216,342		259,739		85,121