-----BEGIN PRIVACY-ENHANCED MESSAGE-----
Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
Originator-Key-Asymmetric:
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 TWSM7vrzLADbmYQaionwg5sDW3P6oaM5D3tdezXMm7z1T+B+twIDAQAB
MIC-Info: RSA-MD5,RSA,
 OdgW0g7SVPVFb6aNrf2byUD6qmd83qY0fOJm3d1IyklxnqbS0jHRedZa3qmFJUF8
 qVfzgm9HcY3p4D79t5kskw==

<SEC-DOCUMENT>0001209191-08-017863.txt : 20080313
<SEC-HEADER>0001209191-08-017863.hdr.sgml : 20080313
<ACCEPTANCE-DATETIME>20080313093958
ACCESSION NUMBER:		0001209191-08-017863
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20080312
FILED AS OF DATE:		20080313
DATE AS OF CHANGE:		20080313

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:			USHER THOMAS J
		CENTRAL INDEX KEY:			0001196966

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-01687
		FILM NUMBER:		08685055

	MAIL ADDRESS:	
		STREET 1:		UNITED STATES STEEL CORP 61ST FLR
		STREET 2:		600 GRANT ST
		CITY:			PITTSBURGH
		STATE:			PA
		ZIP:			15219
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>doc4.xml
<DESCRIPTION>FORM 4 SUBMISSION
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0202</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2008-03-12</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0000079879</issuerCik>
        <issuerName>PPG INDUSTRIES INC</issuerName>
        <issuerTradingSymbol>PPG</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001196966</rptOwnerCik>
            <rptOwnerName>USHER THOMAS J</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>UNITED STATES STEEL CORPORATION,</rptOwnerStreet1>
            <rptOwnerStreet2>600 GRANT STREET, 61ST FLOOR</rptOwnerStreet2>
            <rptOwnerCity>PITTSBURGH</rptOwnerCity>
            <rptOwnerState>PA</rptOwnerState>
            <rptOwnerZipCode>15219-2800</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <derivativeTable>
        <derivativeTransaction>
            <securityTitle>
                <value>Phantom Stock Units</value>
            </securityTitle>
            <conversionOrExercisePrice>
                <footnoteId id="F1"/>
            </conversionOrExercisePrice>
            <transactionDate>
                <value>2008-03-12</value>
            </transactionDate>
            <deemedExecutionDate></deemedExecutionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>A</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionTimeliness>
                <value></value>
            </transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>150.254</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>0.00</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <exerciseDate>
                <footnoteId id="F2"/>
            </exerciseDate>
            <expirationDate>
                <footnoteId id="F2"/>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Common Stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>150.254</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>14376.242</value>
                    <footnoteId id="F3"/>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </derivativeTransaction>
    </derivativeTable>

    <footnotes>
        <footnote id="F1">The security converts to common stock on a one-for-one basis.</footnote>
        <footnote id="F2">After termination of service as a Director of PPG Industries, Inc.</footnote>
        <footnote id="F3">Total of all phantom stock units held by the reporting person in the PPG Industries, Inc. Deferred Compensation Plan for Directors.</footnote>
    </footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>Dirk R. Gardner, Attorney-in-Fact for Thomas J. Usher</signatureName>
        <signatureDate>2008-03-13</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
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