Exhibit 12

PPG INDUSTRIES, INC. AND CONSOLIDATED SUBSIDIARIES

Computation of Ratio of Earnings to Fixed Charges

(Dollars in millions)

	Three months ended			Year Ended December 31
	March 31, 2009			2008		2007		2006		2005		2004
Earnings:
(Loss) earnings before income taxes and net earnings in equity affiliates	$	(96	)	$	904	$	1,282	$	1,018	$	967	$	1,041
Plus:
Fixed charges exclusive of capitalized interest		68			343		156		137		129		132
Amortization of capitalized interest		2			7		7		8		9		10
Adjustments for equity affiliates		—			18		21		16		20		6
Total	$	(26	)	$	1,272	$	1,466	$	1,179	$	1,125	$	1,189
Fixed Charges:
Interest expense including amortization of debt discount/premium and debt expense	$	49			254		93	$	83	$	81	$	90
Rentals – portion representative of interest		19			89		63		54		48		42
Fixed charges exclusive of capitalized interest		68			343		156		137		129		132
Capitalized interest		3			8		11		7		5		3
Total	$	71		$	351	$	167	$	144	$	134	$	135
Ratio of earnings to fixed charges		—			3.6		8.8		8.2		8.4		8.8
Deficiency of earnings to fixed charges	$	(97	)	$	—	$	—	$	—	$	—	$	—