<SEC-DOCUMENT>0001193125-19-287396-index.html : 20191107
<SEC-HEADER>0001193125-19-287396.hdr.sgml : 20191107
<ACCEPTANCE-DATETIME>20191107165209
ACCESSION NUMBER:		0001193125-19-287396
CONFORMED SUBMISSION TYPE:	S-3ASR
PUBLIC DOCUMENT COUNT:		7
FILED AS OF DATE:		20191107
DATE AS OF CHANGE:		20191107
EFFECTIVENESS DATE:		20191107

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			WESTLAKE CHEMICAL CORP
		CENTRAL INDEX KEY:			0001262823
		STANDARD INDUSTRIAL CLASSIFICATION:	INDUSTRIAL ORGANIC CHEMICALS [2860]
		IRS NUMBER:				760346924
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		S-3ASR
		SEC ACT:		1933 Act
		SEC FILE NUMBER:	333-234573
		FILM NUMBER:		191201096

	BUSINESS ADDRESS:	
		STREET 1:		2801 POST OAK BLVD
		STREET 2:		SUITE 600
		CITY:			HOUSTON
		STATE:			TX
		ZIP:			77056
		BUSINESS PHONE:		713-960-9111

	MAIL ADDRESS:	
		STREET 1:		2801 POST OAK BLVD
		STREET 2:		SUITE 600
		CITY:			HOUSTON
		STATE:			TX
		ZIP:			77056
</SEC-HEADER>
<DOCUMENT>
<TYPE>S-3ASR
<SEQUENCE>1
<FILENAME>d816093ds3asr.htm
<DESCRIPTION>S-3ASR
<TEXT>
Document 1 - file: d816093ds3asr.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-5.1
<SEQUENCE>2
<FILENAME>d816093dex51.htm
<DESCRIPTION>EX-5.1
<TEXT>
Document 2 - file: d816093dex51.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-23.1
<SEQUENCE>3
<FILENAME>d816093dex231.htm
<DESCRIPTION>EX-23.1
<TEXT>
Document 3 - file: d816093dex231.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-25.1
<SEQUENCE>4
<FILENAME>d816093dex251.htm
<DESCRIPTION>EX-25.1
<TEXT>
Document 4 - file: d816093dex251.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>5
<FILENAME>g816093g1106093639013.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 5 - file: g816093g1106093639013.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>6
<FILENAME>g816093g1106093639137.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 6 - file: g816093g1106093639137.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>7
<FILENAME>g816093g42q25.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 7 - file: g816093g42q25.jpg

</DOCUMENT>
</SEC-DOCUMENT>