-----BEGIN PRIVACY-ENHANCED MESSAGE-----
Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
Originator-Key-Asymmetric:
 MFgwCgYEVQgBAQICAf8DSgAwRwJAW2sNKK9AVtBzYZmr6aGjlWyK3XmZv3dTINen
 TWSM7vrzLADbmYQaionwg5sDW3P6oaM5D3tdezXMm7z1T+B+twIDAQAB
MIC-Info: RSA-MD5,RSA,
 OqsWD1PGWsVzIDoJZwSVOuFFfn/1VvZLbFUUFjgdslBNqDeHGfBkw26Z7HpJIDEI
 SBz2s0SaXt6sxQtb+/gvPQ==

<SEC-DOCUMENT>0001179110-06-019851.txt : 20061013
<SEC-HEADER>0001179110-06-019851.hdr.sgml : 20061013
<ACCEPTANCE-DATETIME>20061013152158
ACCESSION NUMBER:		0001179110-06-019851
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20061011
FILED AS OF DATE:		20061013
DATE AS OF CHANGE:		20061013

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			MCCONAUGHY DAVID
		CENTRAL INDEX KEY:			0001252646

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-07755
		FILM NUMBER:		061144172

	MAIL ADDRESS:	
		STREET 1:		2601 AIRPORT DRIVE SUITE 150
		CITY:			TORRANCE
		STATE:			CA
		ZIP:			90505

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			SUMMA INDUSTRIES/
		CENTRAL INDEX KEY:			0000062262
		STANDARD INDUSTRIAL CLASSIFICATION:	PLASTICS PRODUCTS, NEC [3089]
		IRS NUMBER:				951240978
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			0831

	BUSINESS ADDRESS:	
		STREET 1:		21250 HAWTHORNE BLVD
		STREET 2:		STE 500
		CITY:			TORRANCE
		STATE:			CA
		ZIP:			90503
		BUSINESS PHONE:		9092733485

	MAIL ADDRESS:	
		STREET 1:		21250 HAWTHORNE BLVD
		STREET 2:		STE 500
		CITY:			TORRANCE
		STATE:			CA
		ZIP:			90503

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	SUMMA INDUSTRIES /
		DATE OF NAME CHANGE:	19960416

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	MOREHOUSE INDUSTRIES INC
		DATE OF NAME CHANGE:	19920703

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	MAXAD INC
		DATE OF NAME CHANGE:	19740304
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>edgar.xml
<DESCRIPTION>FORM 4 -
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0202</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2006-10-11</periodOfReport>

    <notSubjectToSection16>1</notSubjectToSection16>

    <issuer>
        <issuerCik>0000062262</issuerCik>
        <issuerName>SUMMA INDUSTRIES/</issuerName>
        <issuerTradingSymbol>SUMX</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001252646</rptOwnerCik>
            <rptOwnerName>MCCONAUGHY DAVID</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O DATA MANAGEMENT RESOURCES</rptOwnerStreet1>
            <rptOwnerStreet2>2601 AIRPORT DRIVE, SUITE 150</rptOwnerStreet2>
            <rptOwnerCity>TORRANCE</rptOwnerCity>
            <rptOwnerState>CA</rptOwnerState>
            <rptOwnerZipCode>90505</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle></officerTitle>
            <otherText></otherText>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2006-10-11</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>J</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
                <footnoteId id="F1"/>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>12500</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>15.00</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>0</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <derivativeTable>
        <derivativeTransaction>
            <securityTitle>
                <value>Common Stock Option</value>
            </securityTitle>
            <conversionOrExercisePrice>
                <value>8.55</value>
                <footnoteId id="F2"/>
            </conversionOrExercisePrice>
            <transactionDate>
                <value>2006-10-11</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>J</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
                <footnoteId id="F1"/>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>12000</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>0</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <exerciseDate>
                <value>2001-12-17</value>
            </exerciseDate>
            <expirationDate>
                <value>2006-12-17</value>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Common Stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>12000</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>0</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </derivativeTransaction>
    </derivativeTable>

    <footnotes>
        <footnote id="F1">In connection with the tender offer and subsequent merger of Habasit Holding USA, Inc. into Issuer, all shares of Common Stock of Issuer and all stock options will be purchased for the merger consideration of $15.00.</footnote>
        <footnote id="F2">Consists of two options at exercise prices of $8.55 for 8,000 and $9.72 for 4,000.</footnote>
    </footnotes>

    <ownerSignature>
        <signatureName>David McConaughy</signatureName>
        <signatureDate>2006-10-13</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
-----END PRIVACY-ENHANCED MESSAGE-----