EXHIBIT 3.47

                       CERTIFICATE OF LIMITED PARTNERSHIP

         The undersigned, desiring to form a limited partnership pursuant to the
Delaware Revised Uniform Limited Partnership Act, 6 Delaware Code, Chapter 17,
do hereby certify as follows:

         I.       The name of the limited partnership is WESTLAKE POLYMERS LP.

         II.      The address of the Partnership's registered office in the
State of Delaware is 103 Foulk Road, Suite 200, Wilmington, DE 19803. The
registered agent for service of process in the State of Delaware at such address
is Entity Services Group, L.L.C.

         III.     The name and mailing address of each general partner is as
follows:

                       NAME                           MAILING ADDRESS

        Westlake Chemical Investments, Inc.   2801 Post Oak Boulevard, Suite 600
                                              Houston, TX  77056

         IN WITNESS WHEREOF, the undersigned has executed this Certificate of
Limited Partnership of WESTLAKE POLYMERS LP as of December 20th, 2000.

                                       WESTLAKE CHEMICAL INVESTMENTS, INC.,
                                       GENERAL PARTNER

                                       By: /s/ A. Chao
                                          -------------------------------------
                                           Albert Chao, President