EXHIBIT NO. 32.1

                                  CERTIFICATION

      Pursuant to 18 U.S.C. Section 1350, the undersigned officer of RPM
International Inc., a Delaware corporation (the "Company"), does hereby certify,
to such officer's knowledge, that the Company's Quarterly Report on Form 10-Q
for the quarter ended November 30, 2004 (the "Form 10-Q") fully complies with
the requirements of Section 13(a) or 15(d), as applicable, of the Securities
Exchange Act of 1934 and that the information contained in the Form 10-Q fairly
presents, in all material respects, the financial condition and results of
operations of the Company as of, and for, the periods presented in the Form
10-Q.

Dated:  January 10, 2005

                                      /s/ Frank C. Sullivan
                                      ------------------------------------------
                                      Frank C. Sullivan
                                      President and Chief Executive Officer

      The foregoing Certification is being furnished solely pursuant to 18
U.S.C. Section 1350 and is not being filed as part of the Form 10-Q or as a
separate disclosure document.