Exhibit 12

PPG INDUSTRIES, INC. AND CONSOLIDATED SUBSIDIARIES

Computation of Ratio of Earnings to Fixed Charges

(Dollars in millions)

	Year Ended December 31											Nine Months Ended September 30, 2003
	1998		1999		2000		2001		2002
Earnings:
Earnings (loss) before income taxes and net earnings in equity affiliates	$	1,264	$	945	$	978	$	651	$	(27	)	$	655
Plus:
Fixed charges exclusive of capitalized interest		135		164		217		208		168			113
Amortization of capitalized interest		12		10		10		10		11			8
Adjustments for equity affiliates		16		16		20		26		6			3
Total	$	1,427	$	1,135	$	1,225	$	895	$	158		$	779
Fixed Charges:
Interest expense including amortization of debt discount/premium and debt expense	$	110	$	133	$	177	$	169	$	128		$	81
Rentals – portion representative of interest		25		31		40		39		40			32
Fixed charges exclusive of capitalized interest		135		164		217		208		168			113
Capitalized interest		9		11		16		13		5			3
Total	$	144	$	175	$	233	$	221	$	173		$	116
Ratio of earnings to fixed charges		9.9		6.5		5.3		4.0		—			6.7
Deficiency of earnings to fixed charges	$	—	$	—	$	—	$	—	$	(15	)	$	—