Exhibit 32.2

CERTIFICATION PURSUANT TO

SECTION 1350, CHAPTER 63 OF TITLE 18, UNITED STATES CODE,

AS ADOPTED PURSUANT TO

SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

In connection with the Quarterly Report of Applied Extrusion Technologies, Inc. (“AET”) on Form 10-Q for the period ended December 31, 2004, as filed with the Securities and Exchange Commission on the date hereof (the “Report”), the undersigned officer hereby certifies pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that, to his or her knowledge, (i) the Report fully complies with the requirements of Section 13 (a) or 15 (d) of the Securities Exchange Act of 1934 and (ii) the information contained in this report fairly presents, in all material respects, the financial condition and results of operations of AET.

Signed this 28th day of February, 2005

/s/ Brian P. Crescenzo

Brian P. Crescenzo

Vice President Finance, Secretary and Treasurer

A signed original of this written statement required by Section 906 has been provided to AET and will be retained by AET and furnished to the Securities and Exchange Commission or its staff upon request.