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If this Form is a post-effective amendment to a registration statement filed pursuant to General Instruction I.D. filed to register additional securities or additional classes of securities pursuant to Rule 413(b) under the Securities Act, check the following box.    o

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, or a smaller reporting company. See the definitions of “large accelerated filer,” “accelerated filer” and “smaller reporting company” in Rule 12b-2 of the Exchange Act. (Check one):

DEREGISTRATION OF SECURITIES

North American Galvanizing & Coatings, Inc. (the “Company”) is filing this Post-Effective Amendment No. 1 to the registration statement on Form S-3, Registration No. 033-62733, filed on September 18, 1995 (the “Registration Statement”), pertaining to the Company’s shelf registration of 5,619,615 shares of common stock par value $0.10 per share, of the Company (the “Common Stock”).

On August 3, 2010, pursuant to an Agreement and Plan of Merger, dated as of March 31, 2010, by and among AZZ incorporated (“Parent”), Big Kettle Merger Sub, Inc., an indirect wholly-owned subsidiary of Parent (“Purchaser”), and the Company, Purchaser merged with and into the Company, with the Company being the surviving entity and becoming an indirect wholly owned subsidiary of Parent. The Company has filed a certification and notice of termination on Form 15 with respect to the Common Stock.

In accordance with an undertaking of the Company contained in the Registration Statement, as required by Item 512(a)(3) of Regulation S-K, to remove from registration, by means of a post-effective amendment, any of the securities that remain unsold at the termination of the offering, this Post-Effective Amendment No. 1 hereby removes from registration the securities of the Company that are registered but unsold under the Registration Statement and terminates the effectiveness of the Registration Statement.

SIGNATURES

Pursuant to the requirements of the Securities Act of 1933, the Company certifies that it has reasonable grounds to believe that it meets all of the requirements for filing on Form S-3 and has duly caused this Post-Effective Amendment No. 1 to be signed on its behalf by the undersigned, thereunto duly authorized, in the City of Fort Worth, State of Texas, on August 9, 2010.

NORTH AMERICAN GALVANZING & COATINGS, INC.

Pursuant to the requirements of the Securities Act of 1933, this Post-Effective Amendment No. 1 has been signed below by the following persons in the capacities and on the dates indicated:

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