SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549

                                    FORM 11-K




[ X ]    ANNUAL REPORT PURSUANT TO SECTION 15 (d) OF THE SECURITIES EXCHANGE
         ACT OF 1934

         For the fiscal year ended December 31, 1999

                                       OR

[   ]    TRANSITION REPORT PURSUANT TO SECTION 15 (d) OF THE SECURITIES
         EXCHANGE ACT OF 1934


         For the transition period from ____________ to ____________



Commission file number 0-7154



A.   Full title of the plan and the address of the plan, if different from that
     of the issuer named below:

                  Profit Sharing and Retirement Savings Plan of
                           Quaker Chemical Corporation

B.   Name of issuer of the securities held pursuant to the plan and the address
     of its principal executive office:

                           Quaker Chemical Corporation
                               Elm and Lee Streets
                        Conshohocken, Pennsylvania 19428



                                                       Total Number of Pages: 13


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Profit Sharing and Retirement Savings Plan of Quaker Chemical Corporation Index - -------------------------------------------------------------------------------- Page(s) ------- Report of Independent Accountants 3 Financial Statements: Statements of Net Assets Available for Benefits at December 31, 1999 and 1998 4 Statements of Changes in Net Assets Available for Benefits for the Years Ended December 31, 1999 and 1998 5 Notes to Financial Statements 6-9 Additional Information:* Schedule I - Schedule of Assets Held for Investment Purposes at December 31, 1999 10 Schedule II - Schedule of Reportable Transactions for the Year Ended December 31, 1999 11 Signatures 12 Exhibit 23 - Consent of Independent Accountants * Other schedules required by Section 2520.103-10 of the Department of Labor Rules and Regulations for Reporting and Disclosure under the Employee Retirement Income Security Act of 1974 have been omitted because they are not applicable. 2

Report of Independent Accountants To the Participants and Administrator of the Profit Sharing and Retirement Savings Plan of Quaker Chemical Corporation In our opinion, the accompanying statements of net assets available for benefits and the related statements of changes in net assets available for benefits present fairly, in all material respects, the net assets available for benefits of the Profit Sharing and Retirement Savings Plan of Quaker Chemical Corporation (the "Plan") at December 31, 1999 and 1998, and the changes in net assets available for benefits for the years then ended, in conformity with accounting principles generally accepted in the United States. These financial statements are the responsibility of the Plan's management; our responsibility is to express an opinion on these financial statements based on our audits. We conducted our audits of these statements in accordance with auditing standards generally accepted in the United States, which require that we plan and perform the audit to obtain reasonable assurance about whether the financial statements are free of material misstatement. An audit includes examining, on a test basis, evidence supporting the amounts and disclosures in the financial statements, assessing the accounting principles used and significant estimates made by management, and evaluating the overall financial statement presentation. We believe that our audits provide a reasonable basis for the opinion expressed above. Our audits were conducted for the purpose of forming an opinion on the basic financial statements taken as a whole. The supplemental schedules of assets held for investment purposes and reportable transactions are presented for the purpose of additional analysis and are not a required part of the basic financial statements but are supplementary information required by the Department of Labor's Rules and Regulations for Reporting and Disclosure under the Employee Retirement Income Security Act of 1974. These supplemental schedules are the responsibility of the Plan's management. The supplemental schedules have been subjected to the auditing procedures applied in the audits of the basic financial statements and, in our opinion, are fairly stated in all material respects in relation to the basic financial statements taken as a whole. /s/ PricewaterhouseCoopers LLP Philadelphia, PA June 26, 2000 3

Profit Sharing and Retirement Savings Plan of Quaker Chemical Corporation Statements of Net Assets Available for Benefits December 31, 1999 and 1998 - -------------------------------------------------------------------------------- 1999 1998 ---- ---- Investments $20,395,625 $20,426,690 Employer contributions receivable 1,299,715 356,203 ----------- ----------- Net assets available for benefits $21,695,340 $20,782,893 =========== =========== The accompanying notes are an integral part of these financial statements. 4

Profit Sharing and Retirement Savings Plan of Quaker Chemical Corporation Statements of Changes in Net Assets Available for Benefits For the Years Ended December 31, 1999 and 1998 - -------------------------------------------------------------------------------- 1999 1998 ---- ---- Investment income Net appreciation in fair value of investments $ 100,339 $ 1,361,289 Interest and dividends 634,524 635,242 ------------ ------------ 734,863 1,996,531 Participant contributions 1,674,060 1,837,798 Employer contributions 1,399,769 473,307 Participant benefit payments (2,896,245) (1,016,060) ------------ ------------ Increase in net assets available for benefits 912,447 3,291,576 Net assets available for benefits: Beginning of year 20,782,893 17,491,317 ------------ ------------ End of year $ 21,695,340 $ 20,782,893 ============ ============ The accompanying notes are an integral part of these financial statements. 5

Profit Sharing and Retirement Savings Plan of Quaker Chemical Corporation Notes to Financial Statements - -------------------------------------------------------------------------------- 1. Description of Plan The following description of the Profit Sharing and Retirement Savings Plan of Quaker Chemical Corporation (the "Plan") provides only general information. Participants should refer to the Plan document for a more complete description of the Plan's provisions. General The Plan is a defined contribution plan for all employees of Quaker Chemical Corporation (the "Company"), except for employees compensated in whole or in part by commissions on sales. The Plan is administered by the Profit Sharing and Retirement Savings Committee appointed by the Company's Board of Directors, and is subject to the Employee Retirement Income Security Act of 1974 ("ERISA"). Employees become eligible for participation in the Plan on the first day of the month following employment commencement, unless the employee is hired on the first day of the month in which case the employee is eligible immediately. Plan participants are immediately vested in their account balance. All Plan administrative expenses are paid by the Company. Contributions Participants may elect to contribute on a "before-tax" basis any whole percentage of their compensation, up to 15%, during the year. Each year, the Company makes a matching contribution of $150 for each whole percentage of the participant's compensation contributed to the Plan during the Plan year, with the Company's matching contribution for each individual participant limited to $450 in any calendar year. The Company's 1999 and 1998 matching contributions were $100,054 and $117,104, respectively. Additionally, the Company makes a contribution (the "profit sharing contribution") based on the level of domestic company profit from operations (as defined) versus the target profit (as defined). The target profit is determined as the average of the prior three years' domestic company profit from operations increased by 15%. The Company's Board of Directors, at its discretion, may increase the amount of the contribution to the Plan for each Plan year. The Company's 1999 and 1998 profit sharing contributions were $1,299,715 and $356,203, respectively. Participant accounts Each participant's account is credited with the participant's contribution and allocation of (a) the Company's contributions and (b) Plan earnings. Allocations are based on participant earnings or account balances, as defined. The benefit to which a participant is entitled is the benefit that can be provided from the participant's vested account. Investment options Participants may elect to invest their pro rata share of the Company's contribution in any of the following pooled investment funds of Principal Mutual Life Insurance Company ("PML"): Guaranteed Interest, U.S. Stock and Bond and Mortgage. Participants may also elect to invest in Quaker Chemical Corporation common stock. 6

Profit Sharing and Retirement Savings Plan of Quaker Chemical Corporation Notes to Financial Statements - -------------------------------------------------------------------------------- The Plan includes a provision whereby PML, if so instructed by the Plan administrator, shall invest an amount less than 50% of the employer's current contribution allocable to each participant for the year in whole life insurance contracts. These contracts are owned by the Plan and maintained by PML. The Plan is the sole beneficiary of the contracts. Participant loans Participants may borrow from their fund accounts a minimum of $1,000 up to a maximum of 50% of the participant's account balance. The loans are secured by the balance in the participant's account, bear interest at the prime rate in effect at loan inception, and have a term not to exceed three years. At December 31, 1999 and 1998, outstanding loans were $131,585 and $33,652, respectively, with original participant balances of $167,417 and $49,563, respectively. Benefit payments Participants are entitled to receive their account balance upon retirement or termination from the Company. In the event that a payment cannot be made due to the inability to locate the participant or beneficiary, the participant account balance will be forfeited and treated as an additional employer profit sharing contribution for the related Plan year. In the event of Plan termination, the Plan provides that the assets shall continue to be held by the trustee and custodian (currently, First Union Bank and PML, respectively) for normal distribution. 2. Significant Accounting Policies Basis of accounting The Plan's financial statements are prepared on the accrual basis of accounting. The preparation of financial statements in conformity with generally accepted accounting principles requires management to make estimates and assumptions that affect the reported amounts of net assets available for benefits at the date of the financial statements and the reported amounts of changes in net assets available for benefits. Actual results could differ from those estimates. Investments and investment income Investments in the pooled Guaranteed Interest fund are valued at contract value, representing contributions made plus interest at the contract rate less funds withdrawn. Investments in the pooled U.S. Stock and Bond and Mortgage investment funds are valued at market value, determined using the daily net asset value quoted by the trustee based on the published market prices of the underlying securities in the funds. The market value of the Company's common stock is based on the closing price as listed on the New York Stock Exchange. Life insurance contracts are valued at cash surrender value, which approximates fair value. Participant loans receivable are valued at cost, which approximates fair value. Purchases and sales of securities are recorded on a trade-date basis. Interest income is recorded on the accrual basis. Dividends are recorded on the ex-dividend date. Benefit payments Benefits are recorded when paid. 7

Profit Sharing and Retirement Savings Plan of Quaker Chemical Corporation Notes to Financial Statements - -------------------------------------------------------------------------------- Financial statement presentation The Plan adopted Statement of Position ("SOP") 99-3, Accounting for and Reporting of Certain Defined Contribution Benefit Plan Investments and Other Disclosure Matters. Certain reclassifications of 1998 amounts have been made to conform to the 1999 presentation in accordance with SOP 99-3. This SOP eliminated the previously required reporting of changes in net assets by investment option for participant directed investments. 3. Investments The following presents the Plan's investments at December 31: 1999 1998 ---- ---- Principal Mutual Life Pooled Investment Funds: Guaranteed Interest $ 2,228,804* $ 2,137,010* U.S. Stock 14,189,764* 13,716,684* Bond and Mortgage 2,801,278* 3,440,567* Quaker Chemical Corporation Common Stock 973,965 1,044,719* Loans to participants 131,585 33,652 Other 70,229 54,058 ----------- ----------- $20,395,625 $20,426,690 =========== =========== * Represents 5 percent or more of the Plan's assets. The Plan's investments (including gains and losses on investments bought and sold, as well as held during the year) appreciated in value as follows: 1999 1998 ---- ---- Principal Mutual Life Pooled Investment Funds: U.S. Stock $ 571,303 $1,358,303 Bond and Mortgage (218,904) 18,364 Quaker Chemical Corporation Common Stock (252,060) (15,378) --------- ---------- $ 100,339 $1,361,289 --------- ---------- 4. Related Party Transactions Certain Plan assets are invested in shares of separate accounts managed by PML. PML is a custodian and recordkeeper as defined by the Plan and, therefore, these investments qualify as party-in-interest which are exempt from the prohibited transactions rules. 8

Profit Sharing and Retirement Savings Plan of Quaker Chemical Corporation Notes to Financial Statements - -------------------------------------------------------------------------------- 5. Tax Status of the Plan The Plan has received a tax determination letter from the Internal Revenue Service dated August 18, 1995 indicating that the Plan is a qualified plan under Section 401 of the Internal Revenue Code ("IRC"). The Plan has been amended since receiving the determination letter. However, the Plan administrator believes that the Plan is designed and is currently being operated in compliance with the applicable requirements of the IRC. Accordingly, no provision for income taxes has been recorded in the financial statements. 6. Termination of the Plan Although it has not expressed any intent to do so, the Company has the right to terminate the Plan subject to the provisions of ERISA. 9

Schedule I Profit Sharing and Retirement Savings Plan of Quaker Chemical Corporation Item 27a Form 5500 - Schedule of Asets Held for Investment Purposes December 31, 1999 - -------------------------------------------------------------------------------- Current Description of Asset Cost Value -------------------- ---- ------- * Principal Mutual Life Pooled Investment Funds: Guaranteed Interest Fund $ 2,145,383 $ 2,228,804 U.S. Stock Fund 7,657,721 14,189,764 Bond and Mortgage Fund 2,212,360 2,801,278 * Quaker Chemical Corporation Common Stock 971,355 973,965 Sun Life of Canada Insurance Contracts 70,229 70,229 Loans to Participants, 8.75% - 9.50% 131,585 131,585 ----------- ----------- $13,188,633 $20,395,625 =========== =========== * Party-in-interest 10

Schedule II Profit Sharing and Retirement Savings Plan of Quaker Chemical Corporation Item 27d Form 5500 - Schedule of Reportable (5%) Transactions* For the Year Ended December 31, 1999 - -------------------------------------------------------------------------------- Current Value of Asset Identity of Number of Purchase Selling Cost of on Transaction Party involved Description of Asset Transactions Price Price Asset Date Net Gain -------------- -------------------- ------------ -------- ------- ------- -------------- -------- Principal Mutual Life Insurance Co. U.S. Stock Fund 64 $1,973,717 - $1,973,717 $ 1,973,717 - U.S. Stock Fund 59 - $2,274,576 1,142,618 2,274,576 $ 1,131,958 Principal Mutual Life Insurance Co. Guaranteed Interest Fund 41 1,300,172 - 1,300,172 1,300,172 - Guaranteed Interest Fund 46 - 1,290,092 1,290,092 1,290,092 - Principal Mutual Life Insurance Co. Bond and Mortgage Fund 37 641,212 - 641,212 641,212 - Bond and Mortgage Fund 47 - 1,266,063 987,338 1,266,063 278,725 *Transactions or series of transactions in excess of 5 percent of the current value of the Plan's assets as of December 31, 1999 as defined in Section 2520.103-6 of the Department of Labor Rules and Regulations for Reporting and Disclosure under ERISA. 11

Profit Sharing and Retirement Savings Plan of Quaker Chemical Corporation - -------------------------------------------------------------------------------- Pursuant to the requirements of the Securities and Exchange Act of 1934, the trustees have duly caused this annual report to be signed by the undersigned hereunto duly authorized. Profit Sharing and Retirement Savings Plan of Quaker Chemical Corporation Date: June 28, 2000 By: /s/ James A. Geier ------------------------------------ Vice President - Human Resources 12


                                                                      Exhibit 23




                       CONSENT OF INDEPENDENT ACCOUNTANTS


We hereby consent to the incorporation by reference in the Registration
Statement on Form S-8 (No. 33-54158) of Quaker Chemical Corporation of our
report dated June 26, 2000 relating to the financial statements of the Profit
Sharing and Retirement Savings Plan of Quaker Chemical Corporation, which
appears in this Form 11-K.




/s/ PricewaterhouseCoopers LLP

Philadelphia, PA
June 28, 2000

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