Results of Operations

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 November 1, 2018 Date of Report (Date of earliest event reported) QUAKER CHEMICAL CORPORATION (Exact name of Registrant as specified in its charter) Commission File Number 001-12019 PENNSYLVANIA No. 23-0993790 (State or other jurisdiction of incorporation or organization) (I.R.S. Employer Identification No.) One Quaker Park 901 E. 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) Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions: ¨ Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425) ¨ Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12) ¨ Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b)) ¨ Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c)) Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter). Emerging growth company ¨ If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to section 13(a) of the exchange Act. ¨ INFORMATION TO BE INCLUDED IN THE REPORT Item 2.02. Results of Operations and Financial Condition. On November 1, 2018, Quaker Chemical Corporation (“Quaker Chemical”) announced its results of operations for the third quarter ended September 30, 2018 in a press release, the text of which is included as Exhibit 99.1 hereto. Supplemental information related to the same period is also included as Exhibit 99.2 hereto. Item 9.01. Financial Statements and Exhibits. The following exhibits are included as part of this report: Exhibit No. 99.1 Press Release of Quaker Chemical Corporation dated November 1, 2018. 99.2 Supplemental Information related to third quarter ended September 30, 2018. - 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 hereunto duly authorized. QUAKER CHEMICAL CORPORATION Registrant Date: November 1, 2018 By: /s/ Mary Dean Hall Mary Dean Hall Vice President, Chief Financial Officer and Treasurer - 3 -