Exhibit 23
CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM
We hereby consent to the incorporation by reference in the Registration Statements on Form S-8 (Nos. 033-54158 and 333-115713) of Quaker Chemical Corporation of our report dated June 22, 2007 relating to the December 31, 2006 and 2005 financial statements of the Quaker Chemical Corporation Retirement Savings Plan, included in Quaker Chemical Corporation Retirement Savings Plan’s Annual Report on Form 11-K for the year ended December 31, 2006.
/s/ ASHER & COMPANY, Ltd. |
Philadelphia, Pennsylvania
June 28, 2007