Exhibit 23.1

           CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM
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We hereby consent to the incorporation by reference in this Registration
Statement on Form S-3 of our report dated March 15, 2005 relating to the
financial statements and financial statement schedules, which appears in
Westlake Chemical Corporation's Annual Report on Form 10-K for the year ended
December 31, 2004. We also consent to the reference to us under the heading
"Experts" in such Registration Statement.

/s/ PricewaterhouseCoopers LLP
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PricewaterhouseCoopers LLP
Houston, Texas
May 2, 2005