October 21, 2004



Securities and Exchange Commission
450 5th Street N.W.
Washington, DC  20549

Attention:  Filing Desk

RE:  Cytec Industries Inc. (CYT)

Dear Reader:

As permitted by instruction 7 of Form 4 and Form 5, I hereby authorize
Roy Smith to sign and file on my behalf any Forms 4 or 5 I am required
to file with respect to the securities of Cytec Industries Inc. on or
prior to December 31, 2006.

I acknowledge that Roy Smith is not assuming any of my responsibilities
to comply with Section 16 of the Securities Exchange Act.

						Sincerely,



						/s/ Louis L. Hoynes, Jr.
						Louis L. Hoynes, Jr.