================================================================================

                                  UNITED STATES
                       SECURITIES AND EXCHANGE COMMISSION

                             Washington, D.C. 20549
                                    FORM 8-K

                CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF
                       THE SECURITIES EXCHANGE ACT OF 1934

                                  July 23, 2004
                Date of Report (Date of earliest event reported)

                           QUAKER CHEMICAL CORPORATION
             (Exact name of Registrant as specified in its charter)

                          Commission File Number 0-7154

         PENNSYLVANIA                                      No. 23-0993790
(State or other jurisdiction of                           (I.R.S. Employer
incorporation or organization)                           Identification No.)

                                 One Quaker Park
                                901 Hector Street
                        Conshohocken, Pennsylvania 19428
                    (Address of principal executive offices)
                                   (Zip Code)

                                 (610) 832-4000
              (Registrant's telephone number, including area code)

                                 Not Applicable
          (Former name or former address, if changed since last report)

================================================================================


                    INFORMATION TO BE INCLUDED IN THE REPORT

Item 7. Financial Statements, Pro Forma Financial Information and Exhibits.

      The following exhibit is filed as part of this report:

      Exhibit No.
      -----------
      99.1              Press Release of Quaker Chemical Corporation dated
                        July 23, 2004.

Item 12. Results of Operations and Financial Condition.

      On July 23, 2004, Quaker Chemical Corporation announced guidance relating
to its results of operations for the quarter ended June 30, 2004 in a press
release, the text of which is included as Exhibit 99.1 hereto.


                                      -2-


                                    SIGNATURE

      Pursuant to the requirements of the Securities Exchange Act of 1934, the
Registrant has duly caused this report to be signed on its behalf by the
undersigned thereunto duly authorized.

                                           QUAKER CHEMICAL CORPORATION
                                           Registrant

      Date: July 23, 2004                  By: /s/ Michael F. Barry
                                               ---------------------------------
                                                Michael F. Barry
                                                Vice President and
                                                Chief Financial Officer


                                      -3-