Exhibit 99.1

                                 [LOGO] Quaker

For Release:                        NEWS              Contact:
   Immediate                                             Michael F. Barry
                                                         Vice President and
                                                         Chief Financial Officer
                                                         610/832-8500

- --------------------------------------------------------------------------------

                QUAKER CHEMICAL ANNOUNCES RECORD QUARTERLY SALES
                             AND NET INCOME GROWTH

CONSHOHOCKEN,   Pa.,  April  29   /PRNewswire-FirstCall/   --  Quaker   Chemical
Corporation  (NYSE: KWR) today announced record quarterly sales of $98.1 million
and net income growth of 7% for the first quarter ended March 31, 2004.

First Quarter 2004 Summary
- --------------------------

Net  income for the first  quarter  increased  7% to $3.3  million  versus  $3.1
million  for the first  quarter  of 2003.  Consistent  with  previous  guidance,
earnings  per  diluted  share were $0.33 in the first  quarters of both 2004 and
2003.

Net sales for the first quarter of 2004 were a record $98.1 million, up 34% from
$73.3 million for the first quarter of 2003.  Foreign exchange rate translation,
the Company's 2003  acquisitions  and the Company's  recently  awarded  chemical
management  services  (CMS)  contracts  favorably  impacted  net  sales  by $6.5
million, $5.5 million and $10.1 million,  respectively.  The remaining net sales
increase of  approximately  4% is primarily  due to double-  digit growth in the
Asia/Pacific and South American regions.

Gross margin as a percentage of sales  declined from 38.7% for the first quarter
of 2003 to 33.1% for the first  quarter of 2004. As  previously  disclosed,  the
Company's new CMS contracts have caused different  relationships between margins
and revenue than in the past. At the majority of current CMS sites,  the Company
effectively acts as an agent and records revenue and costs from these sales on a
net  sales or  "pass-through"  basis.  The new CMS  contracts  have a  different
structure,  which  results in the Company  recognizing  in reported  revenue the
gross revenue received from the CMS site customer, and in cost of goods sold the
third party product purchases. The negative impact to gross margin for the first
quarter related to the new CMS contracts is  approximately 5 percentage  points.
The  remaining  decline  in  gross  margin  as a  percentage  of sales is due to
increased raw material costs, as well as product and regional sales mix.

Selling,  general and  administrative  expenses for the quarter  increased  $3.9
million compared to the first quarter of 2003. Foreign exchange rate translation
and the  Company's  2003  acquisitions  accounted for  approximately  60% of the
increase  over the prior  year.  The  majority  of the  remaining  increase  was
primarily   due  to  higher   expenses   associated   with  the   Company's  ERP
implementation, Sarbanes-Oxley compliance, as well as inflationary increases.

The increase in other income reflects a  priority-return  distribution  from the
Company's  real estate  joint  venture in the first  quarter of 2004 and foreign
exchange  gains in the first  quarter of 2004 versus losses in the first quarter
of 2003.  The increase in net interest  expense is primarily  due to higher debt
balances outstanding during the first quarter of 2004 versus the prior year.


                                    - more -

                          Quaker Chemical Corporation
      One Quaker Park, 901 Hector Street, Conshohocken, PA 19428-0809 USA
                               www.quakerchem.com
                         T 610.832.4000 F 610.832.8682


Balance Sheet and Cash Flow Items
- ---------------------------------

The Company's  debt-to-total  capital ratio remains  strong at 37% at the end of
the  first  quarter  of 2004  compared  to 34% at the end of  2003.  The  higher
accounts  receivable and inventory at the end of the first quarter are primarily
due to the Company's new CMS contracts and increased sales volume.  In the first
quarter of 2004,  capital  expenditures were $2.3 million,  primarily related to
the Company's U.S. lab renovation and global ERP implementation.

Outlook
- -------

Ronald J. Naples,  Chairman and Chief Executive Officer,  commented,  "The first
quarter results were consistent with our expectations. We are seeing signs of an
improving  global economy with sequential  quarterly  growth in all four regions
and  especially  high growth in the South  American  and  Asia/Pacific  markets.
However,  partially  offsetting  the  positive  impact  of  this  growth  is the
continuation  of high raw  material  costs as well as higher  expenses  that are
primarily a result of higher pension,  insurance,  Sarbanes-Oxley compliance and
ERP implementation expenses."

Mr. Naples continued, "Our view of the world really hasn't changed from our last
guidance.  We expect 2004 to be a strong  revenue  growth  year in all  business
segments  and in all  regions  due to our  business  initiatives  as  well as an
improvement  in the global  economy.  However,  we also continue to expect to be
negatively  impacted  by high crude oil prices as well as the higher  SG&A costs
related to the items above and the  restoration of  performance-based  incentive
compensation.  Our 2004  outlook  continues  to be for a slight  improvement  in
year-over-year  earnings.  For the  second  quarter,  we expect  earnings  to be
similar to 2003,  and we are moving ahead with important  business  initiatives.
The  recent  increase  of our  dividend,  the 32nd  consecutive  year of  annual
dividend increases to shareholders,  is a tangible sign of our confidence in the
prospects  of the  Company  and  our  commitment  to  delivering  value  for our
shareholders."

This release  contains  forward-looking  statements  that are subject to certain
risks and  uncertainties  that could cause actual  results to differ  materially
from those  projected  in such  statements.  A major risk is that the  Company's
demand is largely  derived from the demand for its  customers'  products,  which
subjects the Company to downturns  in a  customer's  business and  unanticipated
customer production shutdowns.  Other major risks and uncertainties include, but
are not  limited to,  significant  increases  in raw  material  costs,  customer
financial  stability,  worldwide  economic  and  political  conditions,  foreign
currency fluctuations,  and future terrorist attacks such as those that occurred
on September 11, 2001.

As previously  announced,  Quaker Chemical's investor conference call to discuss
first quarter results is scheduled for April 30, 2004 at 2:30 p.m. (ET).  Access
the  conference  by  calling   800-922-0755   or  visit  Quaker's  Web  site  at
www.quakerchem.com for a live webcast.


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                          Quaker Chemical Corporation
                          ---------------------------
                   Condensed Consolidated Statement of Income
                   ------------------------------------------
         (Dollars in thousands, except per share data and share amounts)
         ---------------------------------------------------------------


                                                          (Unaudited)
                                                  ----------------------------

                                                  Three Months ended March 31,
                                                  ----------------------------
                                                     2004              2003
                                                  ----------        ----------

Net sales                                         $  98,131         $  73,337

Cost of goods sold                                   65,676            44,971
                                                  ----------        ----------

Gross margin                                         32,455            28,366
   %                                                  33.1%             38.7%

Selling, general and administrative                  26,598            22,685
                                                  ----------        ----------

Operating income                                      5,857             5,681
  %                                                    6.0%              7.7%

Other income, net                                       559                88
Interest expense, net                                  (315)             (139)
                                                  ----------        ----------
Income before taxes                                   6,101             5,630

Taxes on income                                       1,922             1,858
                                                  ----------        ----------
                                                      4,179             3,772

Equity in net income of associated companies            149                86
Minority interest in net income of subsidiaries      (1,019)             (751)
                                                  ----------        ----------

Net income                                        $   3,309         $   3,107
                                                  ==========        ==========
   %                                                   3.4%              4.2%

Per share data:
- ---------------
    Net income - basic                                $0.35             $0.34
    Net income - diluted                              $0.33             $0.33

Shares Outstanding:
- -------------------
    Basic                                         9,570,664         9,270,775
    Diluted                                       9,977,713         9,508,593


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                           Quaker Chemical Corporation
                           ---------------------------
                      Condensed Consolidated Balance Sheet
                      ------------------------------------
            (Dollars in thousands, except par value and share amounts)
            ----------------------------------------------------------

                                                         (Unaudited)
                                                 ----------------------------

                                                  March 31,       December 31,
                                                    2004              2003
                                                 ----------       -----------
ASSETS

Current assets
   Cash and cash equivalents                     $  22,894        $  21,915
   Accounts receivable, net                         82,063           78,121
   Inventories, net                                 33,969           32,211
   Prepaid expenses and other current assets        14,065           11,277
                                                 ----------       -----------
      Total current assets                         152,991          143,524

Property, plant, and equipment, net                137,402          136,448
   Less accumulated depreciation                    75,187           74,057
                                                 ----------       -----------
      Net property, plant and equipment             62,215           62,391
Goodwill                                            33,309           33,301
Other intangible assets, net                         9,299            9,616
Investments in associated companies                  5,937            6,005
Deferred income taxes                               12,875           12,846
Other assets                                        19,525           19,664
                                                 ----------       -----------
      Total assets                               $ 296,151        $ 287,347
                                                 ==========       ==========

LIABILITIES AND SHAREHOLDERS' EQUITY

Current liabilities
   Short-term borrowings and current
    portion of long-term debt                    $  50,614        $  42,992
   Accounts and other payables                      41,439           41,259
   Accrued compensation                              6,385            6,816
   Other current liabilities                        14,942           14,738
                                                 ----------       -----------
      Total current liabilities                    113,380          105,805
Long-term debt                                      15,622           15,827
Deferred income taxes                                2,749            2,688
Other non-current liabilities                       41,278           40,967
                                                 ----------       -----------
      Total liabilities                            173,029          165,287
                                                 ----------       -----------

Minority interest in equity of subsidiaries         10,678            9,708
                                                 ----------       -----------

Shareholders' equity
   Common stock, $1 par value;
    authorized 30,000,000 shares;
    issued (including treasury shares)
    9,664,009 shares                                 9,664            9,664
   Capital in excess of par value                    2,307            2,181
   Retained earnings                               118,546          117,308
   Unearned compensation                              (554)            (621)
   Accumulated other comprehensive loss            (16,851)         (15,406)
                                                 ----------       -----------
                                                   113,112          113,126
   Treasury stock, shares held at
    cost; 2004 - 39,711, 2003 - 54,178                (668)            (774)
                                                 ----------       -----------
      Total shareholders' equity                   112,444          112,352
                                                 ----------       -----------
         Total liabilities and
          shareholders' equity                   $ 296,151        $ 287,347
                                                 ==========       ==========


                                    - more -


                           Quaker Chemical Corporation
                           ---------------------------
                 Condensed Consolidated Statement of Cash Flows
                 ----------------------------------------------
                       For the three months ended March 31,
                       ------------------------------------
                              (Dollars in thousands)
                              ----------------------

                                                              (Unaudited)
                                                       -------------------------
                                                          2004            2003
                                                       ---------       ---------
Cash flows from operating activities
  Net income                                           $  3,309        $  3,107
  Adjustments to reconcile net income
   to net cash used in operating activities:
    Depreciation                                          1,981           1,646
    Amortization                                            284             215
    Equity in net income of associated companies           (149)            (86)
    Minority interest in earnings of subsidiaries         1,019             751
    Deferred compensation and other, net                    208             241
    Pension and other postretirement benefits               313             317
  Increase (decrease) in cash from changes in
   current assets and current liabilities:
    Accounts receivable                                  (4,316)           (399)
    Inventories                                          (1,867)         (1,389)
    Prepaid expenses and other current assets            (2,768)         (1,342)
    Accounts payable and accrued liabilities                329          (5,927)
    Change in restructuring liabilities                    (290)           (699)
                                                       ---------       ---------
      Net cash used in operating activities            $ (1,947)       $ (3,565)
                                                       ---------       ---------

Cash flows from investing activities
  Capital expenditures                                   (2,347)         (2,113)
  Dividends and distributions from
   associated companies                                     233           1,800
  Other, net                                                (57)            (40)
                                                       ---------       ---------
      Net cash used in investing activities              (2,171)           (353)
                                                       ---------       ---------

Cash flows from financing activities
  Net increase in short-term borrowings                   7,617           3,791
  Repayment of long-term debt                              (160)             (7)
  Dividends paid                                         (2,020)         (1,961)
  Treasury stock issued                                     232              86
  Distributions to minority shareholders                   (245)           (213)
                                                       ---------       ---------
      Net cash provided by financing activities           5,424           1,696
                                                       ---------       ---------

  Effect of exchange rate changes on cash                  (327)            409
    Net increase (decrease) in cash
     and cash equivalents                                   979          (1,813)
    Cash and cash equivalents at beginning of year       21,915          13,857
                                                       ---------       ---------
    Cash and cash equivalents at the end of year       $ 22,894        $ 12,044
                                                       ---------       ---------

SOURCE  Quaker Chemical Corporation
    -0-                             04/29/2004
    /CONTACT:  Michael F. Barry, Vice President and Chief Financial Officer,
Quaker Chemical Corporation, +1-610-832-8500/
    /Web site:  http://www.quakerchem.com /
    (KWR)

CO:  Quaker Chemical Corporation
ST:  Pennsylvania
IN:  CHM
SU:  ERN ERP CCA MAV