Exhibit 25 POWER OF ATTORNEY The undersigned director of W. R. GRACE & CO. ("Company") hereby appoints BRIAN J. SMITH, RICHARD N. SUKENIK and ROBERT B. LAMM as his true and lawful attorneys-in-fact for the purpose of signing the Company's Annual Report on Form 10-K for the year ended December 31, 1993, and all amendments thereto, to be filed with the Securities and Exchange Commission. Each of such attorneys-in-fact is appointed with full power to act without the other. /s/ G. C. Dacey /s/ R. C. Macauley /s/ E. W. Duffy /s/ R. Milliken /s/ H. A. Eckmann /s/ J. E. Phipps /s/ C. H. Erhart, Jr. /s/ J. A. Puelicher /s/J. P. Grace /s/ E. W. Pyne /s/ R. H. Grierson /s/ D. W. Robbins, Jr. /s/ C. L. Hampers /s/G. S. Vance /s/T. A. Holmes /s/D. L. Yunich /s/G. J. Humphrey /s/G. P. Jenkins Dated: March 28, 1994 POWER OF ATTORNEY The undersigned, President and Chief Executive Officer (Principal Executive Officer) and a director of W. R. GRACE & CO. ("Company"), hereby appoints BRIAN J. SMITH, RICHARD N. SUKENIK and ROBERT B. LAMM as his true and lawful attorneys-in-fact for the purpose of signing the Company's Annual Report on Form 10-K for the year ended December 31, 1993, and all amendments thereto, to be filed with the Securities and Exchange Commission. Each of such attorneys-in-fact is appointed with full power to act without the other. /s/ J. P. Bolduc Dated: March 28, 1994 POWER OF ATTORNEY The undersigned, Executive Vice President and Chief Financial Officer (Principal Financial Officer) of W. R. GRACE & CO. ("Company"), hereby appoints RICHARD N. SUKENIK and ROBERT B. LAMM as his true and lawful attorneys-in-fact for the purpose of signing the Company's Annual Report on Form 10-K for the year ended December 31, 1993, and all amendments thereto, to be filed with the Securities and Exchange Commission. Each of such attorneys-in-fact is appointed with full power to act without the other. /s/ B. J. Smith Dated: March 28, 1994 POWER OF ATTORNEY The undersigned, Vice President and Controller (Principal Accounting Officer) of W. R. GRACE & CO. ("Company"), hereby appoints BRIAN J. SMITH and ROBERT B. LAMM as his true and lawful attorneys-in-fact for the purpose of signing the Company's Annual Report on Form 10-K for the year ended December 31, 1993, and all amendments thereto, to be filed with the Securities and Exchange Commission. Each of such attorneys-in-fact is appointed with full power to act without the other. /s/ Richard N. Sukenik Dated: March 28, 1994