Exhibit 12

PPG INDUSTRIES, INC. AND CONSOLIDATED SUBSIDIARIES

Computation of Ratio of Earnings to Fixed Charges

(Dollars in millions)

	Year Ended December 31
	2004		2003		2002			2001		2000
Earnings:
Earnings (loss) before income taxes and net earnings of equity affiliates	$	1,042	$	847	$	(27	)	$	651	$	978
Plus:
Fixed charges exclusive of capitalized interest		132		153		168			208		217
Amortization of capitalized interest		10		10		11			10		10
Adjustments for equity affiliates		6		3		6			26		20
Total	$	1,190	$	1,013	$	158		$	895	$	1,225
Fixed Charges:
Interest expense including amortization of debt discount/premium and debt expense	$	90	$	107	$	128		$	169	$	177
Rentals - portion representative of interest		42		46		40			39		40
Fixed charges exclusive of capitalized interest		132		153		168			208		217
Capitalized interest		3		3		5			13		16
Total	$	135	$	156	$	173		$	221	$	233
Ratio of earnings to fixed charges		8.8		6.5		—			4.0		5.3
Deficiency of earnings to fixed charges	$	—	$	—	$	(15	)	$	—	$	—