Exhibit 12

PPG INDUSTRIES, INC. AND CONSOLIDATED SUBSIDIARIES

Computation of Ratio of Earnings to Fixed Charges

(Dollars in millions)

	Nine months ended September 30, 2010		Year Ended December 31
			2009		2008		2007		2006		2005
Earnings:
Earnings before income taxes and net earnings in equity affiliates	$	960	$	620	$	904	$	1,282	$	1,018	$	967
Plus:
Fixed charges exclusive of capitalized interest		194		273		343		156		137		129
Amortization of capitalized interest		5		7		7		7		8		9
Adjustments for equity affiliates		1		11		18		21		16		20
Total	$	1,160	$	911	$	1,272	$	1,466	$	1,179	$	1,125
Fixed Charges:
Interest expense including amortization of debt discount/premium and debt expense	$	137	$	193	$	254	$	93	$	83	$	81
Rentals—portion representative of interest		58		80		89		63		54		48
Fixed charges exclusive of capitalized interest		195		273		343		156		137		129
Capitalized interest		5		9		8		11		7		5
Total	$	200	$	282	$	351	$	167	$	144	$	134
Ratio of earnings to fixed charges		5.8		3.2		3.6		8.8		8.2		8.4