-----BEGIN PRIVACY-ENHANCED MESSAGE-----
Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
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MIC-Info: RSA-MD5,RSA,
 J3diu4CWhD4myA2n2kmOfZTTYQ1jUh68tRMsxCG+ykOWleHQr7Ov44jl/2XumIWy
 r3R3TreMM2mlbpl0cRf87g==

<SEC-DOCUMENT>0000898432-10-000991.txt : 20100728
<SEC-HEADER>0000898432-10-000991.hdr.sgml : 20100728
<ACCEPTANCE-DATETIME>20100728113246
ACCESSION NUMBER:		0000898432-10-000991
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20100726
FILED AS OF DATE:		20100728
DATE AS OF CHANGE:		20100728

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			CHASE CORP
		CENTRAL INDEX KEY:			0000830524
		STANDARD INDUSTRIAL CLASSIFICATION:	ELECTRIC LIGHTING & WIRING EQUIPMENT [3640]
		IRS NUMBER:				111797126
		STATE OF INCORPORATION:			MA
		FISCAL YEAR END:			0831

	BUSINESS ADDRESS:	
		STREET 1:		26 SUMMER STREET
		CITY:			BRIDGEWATER
		STATE:			MA
		ZIP:			02324
		BUSINESS PHONE:		5082791789

	MAIL ADDRESS:	
		STREET 1:		26 SUMMER ST
		CITY:			BRIDGEWATER
		STATE:			MA
		ZIP:			02324

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Edward L. Chase Revocable Trust
		CENTRAL INDEX KEY:			0001389404
		STATE OF INCORPORATION:			MA
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-09852
		FILM NUMBER:		10973453

	BUSINESS ADDRESS:	
		STREET 1:		39 NICHOLS RD
		CITY:			COHASSET
		STATE:			MA
		ZIP:			02025
		BUSINESS PHONE:		617-204-9600

	MAIL ADDRESS:	
		STREET 1:		39 NICHOLS RD
		CITY:			COHASSET
		STATE:			MA
		ZIP:			02025
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>form4_ex.xml
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0303</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2010-07-26</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0000830524</issuerCik>
        <issuerName>CHASE CORP</issuerName>
        <issuerTradingSymbol>CCF</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001389404</rptOwnerCik>
            <rptOwnerName>Edward L. Chase Revocable Trust</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>39 NICHOLS RD</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>COHASSET</rptOwnerCity>
            <rptOwnerState>MA</rptOwnerState>
            <rptOwnerZipCode>02025</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Chase Corporation Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2010-07-26</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>S</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>10645</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>14.0916</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>1090709</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <ownerSignature>
        <signatureName>/s/ Sarah Chase, Trustee</signatureName>
        <signatureDate>2010-07-28</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
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