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Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
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MIC-Info: RSA-MD5,RSA,
 KPDnsHqASEPPQYI0/6ZCSWQpWspccUmYkrIDxUdTGr2768zAZQulbf/ERJFYDYs6
 XOO1fE6Yc2+5sy/iNlIbxA==

<SEC-DOCUMENT>0001209191-03-013919.txt : 20030728
<SEC-HEADER>0001209191-03-013919.hdr.sgml : 20030728
<ACCEPTANCE-DATETIME>20030728120828
ACCESSION NUMBER:		0001209191-03-013919
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20030725
FILED AS OF DATE:		20030728

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			PPG INDUSTRIES INC
		CENTRAL INDEX KEY:			0000079879
		STANDARD INDUSTRIAL CLASSIFICATION:	PAINTS, VARNISHES, LACQUERS, ENAMELS & ALLIED PRODUCTS [2851]
		IRS NUMBER:				250730780
		STATE OF INCORPORATION:			PA
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		ONE PPG PL 40 EAST
		CITY:			PITTSBURGH
		STATE:			PA
		ZIP:			15272
		BUSINESS PHONE:		4124343131

	MAIL ADDRESS:	
		STREET 1:		ONE PPG PL 40 EAST
		CITY:			PITTSBURGH
		STATE:			PA
		ZIP:			15272

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	PITTSBURGH PLATE GLASS CO
		DATE OF NAME CHANGE:	19681219

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			HERNANDEZ WILLIAM H
		CENTRAL INDEX KEY:			0001189027

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-01687
		FILM NUMBER:		03805301

	MAIL ADDRESS:	
		STREET 1:		5500 WAYZATA BLVD.
		STREET 2:		SUITE 800
		CITY:			GOLDEN VALLEY
		STATE:			MN
		ZIP:			55416
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>doc4.xml
<DESCRIPTION>FORM 4 SUBMISSION
<TEXT>
<XML>
<?xml version="1.0"?><ownershipDocument><schemaVersion>X0201</schemaVersion>    <documentType>4</documentType><periodOfReport>2003-07-25</periodOfReport><notSubjectToSection16>0</notSubjectToSection16><issuer><issuerCik>0000079879</issuerCik><issuerName>PPG INDUSTRIES INC</issuerName>        <issuerTradingSymbol>PPG</issuerTradingSymbol></issuer><reportingOwner><reportingOwnerId><rptOwnerCik>0001189027</rptOwnerCik><rptOwnerName>HERNANDEZ WILLIAM H</rptOwnerName></reportingOwnerId><reportingOwnerAddress><rptOwnerStreet1>PPG INDUSTRIES, INC.</rptOwnerStreet1><rptOwnerStreet2>ONE PPG PLACE</rptOwnerStreet2><rptOwnerCity>PITTSBURGH</rptOwnerCity><rptOwnerState>PA</rptOwnerState><rptOwnerZipCode>15272</rptOwnerZipCode><rptOwnerStateDescription></rptOwnerStateDescription></reportingOwnerAddress><reportingOwnerRelationship><isDirector>0</isDirector><isOfficer>1</isOfficer><isTenPercentOwner>0</isTenPercentOwner><isOther>0</isOther><officerTitle>Senior Vice President, Finance</officerTitle></reportingOwnerRelations
hip></reportingOwner><nonDerivativeTable><nonDerivativeTransaction><securityTitle><value>Common Stock</value></securityTitle><transactionDate><value>2003-07-25</value></transactionDate><transactionCoding><transactionFormType>4</transactionFormType><transactionCode>M</transactionCode><equitySwapInvolved>0</equitySwapInvolved></transactionCoding><transactionTimeliness><value></value></transactionTimeliness><transactionAmounts><transactionShares><value>25250</value></transactionShares><transactionPricePerShare><value>49</value></transactionPricePerShare><transactionAcquiredDisposedCode><value>A</value></transactionAcquiredDisposedCode></transactionAmounts><postTransactionAmounts><valueOwnedFollowingTransaction><value>49695</value></valueOwnedFollowingTransaction></postTransactionAmounts><ownershipNature><directOrIndirectOwnership><value>D</value></directOrIndirectOwnership></ownershipNature></nonDerivativeTransaction><nonDerivativeTransaction><securityTitle><value>Common Stock</value></securityTitle><transactio
nDate><value>2003-07-25</value></transactionDate><transactionCoding><transactionFormType>4</transactionFormType><transactionCode>F</transactionCode><equitySwapInvolved>0</equitySwapInvolved></transactionCoding><transactionTimeliness><value></value></transactionTimeliness><transactionAmounts><transactionShares><value>23899</value></transactionShares><transactionPricePerShare><value>55.49</value></transactionPricePerShare><transactionAcquiredDisposedCode><value>D</value></transactionAcquiredDisposedCode></transactionAmounts><postTransactionAmounts><sharesOwnedFollowingTransaction><value>25760</value><footnoteId id="F1" /></sharesOwnedFollowingTransaction></postTransactionAmounts><ownershipNature><directOrIndirectOwnership><value>D</value></directOrIndirectOwnership></ownershipNature></nonDerivativeTransaction></nonDerivativeTable><derivativeTable><derivativeTransaction><securityTitle><value>Employee Stock Option (Right to buy)</value><footnoteId id="F2" /></securityTitle><conversionOrExercisePrice><value>49</v
alue></conversionOrExercisePrice><transactionDate><value>2003-07-25</value></transactionDate><transactionCoding><transactionFormType>4</transactionFormType><transactionCode>M</transactionCode><equitySwapInvolved>0</equitySwapInvolved></transactionCoding><transactionAmounts><transactionShares><value>25250</value></transactionShares><transactionPricePerShare><value>0</value></transactionPricePerShare><transactionAcquiredDisposedCode><value>D</value></transactionAcquiredDisposedCode></transactionAmounts><exerciseDate><value>2003-02-20</value></exerciseDate><expirationDate><value>2012-02-19</value></expirationDate><underlyingSecurity><underlyingSecurityTitle><value>Common Stock</value></underlyingSecurityTitle><underlyingSecurityShares><value>25250</value></underlyingSecurityShares></underlyingSecurity><postTransactionAmounts><sharesOwnedFollowingTransaction><value>302215</value></sharesOwnedFollowingTransaction></postTransactionAmounts><ownershipNature><directOrIndirectOwnership><value>D</value></directOrIndire
ctOwnership></ownershipNature></derivativeTransaction><derivativeTransaction><securityTitle><value>Employee Stock Options (Right to buy)</value><footnoteId id="F3" /></securityTitle><conversionOrExercisePrice><value>55.49</value></conversionOrExercisePrice><transactionDate><value>2003-07-25</value></transactionDate><transactionCoding><transactionFormType>4</transactionFormType><transactionCode>A</transactionCode><equitySwapInvolved>0</equitySwapInvolved></transactionCoding><transactionAmounts><transactionShares><value>23899</value></transactionShares><transactionPricePerShare><value>0</value></transactionPricePerShare><transactionAcquiredDisposedCode><value>A</value></transactionAcquiredDisposedCode></transactionAmounts><exerciseDate><value>2004-01-25</value></exerciseDate><expirationDate><value>2012-02-19</value></expirationDate><underlyingSecurity><underlyingSecurityTitle><value>Common Stock</value></underlyingSecurityTitle><underlyingSecurityShares><value>23899</value></underlyingSecurityShares></underlyi
ngSecurity><postTransactionAmounts><sharesOwnedFollowingTransaction><value>326114</value><footnoteId id="F4" /></sharesOwnedFollowingTransaction></postTransactionAmounts><ownershipNature><directOrIndirectOwnership><value>D</value></directOrIndirectOwnership></ownershipNature></derivativeTransaction></derivativeTable><footnotes><footnote id="F1">This amount does not include shares held for the reporting person in the reporting person's account in the PPG Industries Employee Savings Plan.</footnote><footnote id="F2">Right to buy granted under the PPG Industries, Inc. Stock Plan.</footnote><footnote id="F3">Right to buy granted under the PPG Industries, Inc. Stock Plan.</footnote><footnote id="F4">Total of all remaining stock options granted to the reporting person under the PPG Industries, Inc. Stock Plan.</footnote></footnotes><remarks></remarks><ownerSignature><signatureName>M. C. Hanzel, Attorney-in-Fact for William H. Hernandez</signatureName><signatureDate>2003-07-28</signatureDate></ownerSignature></owne
rshipDocument>

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</SEC-DOCUMENT>
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