<SEC-DOCUMENT>0001104659-21-083816-index.html : 20210622
<SEC-HEADER>0001104659-21-083816.hdr.sgml : 20210622
<ACCEPTANCE-DATETIME>20210622091411
ACCESSION NUMBER:		0001104659-21-083816
CONFORMED SUBMISSION TYPE:	DEFA14A
PUBLIC DOCUMENT COUNT:		4
FILED AS OF DATE:		20210622
DATE AS OF CHANGE:		20210622

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			LYDALL INC /DE/
		CENTRAL INDEX KEY:			0000060977
		STANDARD INDUSTRIAL CLASSIFICATION:	MOTOR VEHICLE PARTS & ACCESSORIES [3714]
		IRS NUMBER:				060865505
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		DEFA14A
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-07665
		FILM NUMBER:		211033212

	BUSINESS ADDRESS:	
		STREET 1:		ONE COLONIAL RD
		STREET 2:		P O BOX 151
		CITY:			MANCHESTER
		STATE:			CT
		ZIP:			06045-0151
		BUSINESS PHONE:		2036461233

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	COLONIAL BOARD CO
		DATE OF NAME CHANGE:	19700115
</SEC-HEADER>
<DOCUMENT>
<TYPE>DEFA14A
<SEQUENCE>1
<FILENAME>tm2120305d1_8k.htm
<DESCRIPTION>DEFA14A
<TEXT>
Document 1 - file: tm2120305d1_8k.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-2.1
<SEQUENCE>2
<FILENAME>tm2120305d1_ex2-1.htm
<DESCRIPTION>EXHIBIT 2.1
<TEXT>
Document 2 - file: tm2120305d1_ex2-1.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-99.1
<SEQUENCE>3
<FILENAME>tm2120305d1_ex99-1.htm
<DESCRIPTION>EXHIBIT 99.1
<TEXT>
Document 3 - file: tm2120305d1_ex99-1.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>4
<FILENAME>tm2120305d1_ex99-1img001.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 4 - file: tm2120305d1_ex99-1img001.jpg

</DOCUMENT>
</SEC-DOCUMENT>