Exhibit 12

PPG INDUSTRIES, INC. AND CONSOLIDATED SUBSIDIARIES

Computation of Ratio of Earnings to Fixed Charges

(Dollars in millions)

	Nine months ended		Year Ended December 31
	September 30, 2009		2008		2007		2006		2005		2004
Earnings:
Earnings before income taxes and net earnings in equity affiliates	$	421	$	904	$	1,282	$	1,018	$	967	$	1,041
Plus:
Fixed charges exclusive of capitalized interest		202		343		156		137		129		132
Amortization of capitalized interest		5		7		7		8		9		10
Adjustments for equity affiliates		—		18		21		16		20		6
Total	$	628	$	1,272	$	1,466	$	1,179	$	1,125	$	1,189
Fixed Charges:
Interest expense including amortization of debt discount/premium and debt expense	$	144	$	254	$	93	$	83	$	81	$	90
Rentals - portion representative of interest		58		89		63		54		48		42
Fixed charges exclusive of capitalized interest		202		343		156		137		129		132
Capitalized interest		7		8		11		7		5		3
Total	$	209	$	351	$	167	$	144	$	134	$	135
Ratio of earnings to fixed charges		3.0		3.6		8.8		8.2		8.4		8.8