ARTHUR ANDERSEN LLP CONSENT OF INDEPENDENT PUBLIC ACCOUNTANTS As independent public accountants, we hereby consent to the incorporation by reference in this registration statement on Form S-8 of our report dated February 16, 2000, on the financial statements of Dynamic Materials Corporation, which report appears in Dynamic Materials Corporation's Annual Report on Form 10-K for the year ended December 31, 1999. Arthur Andersen LLP Denver, Colorado January 17, 2001