2009 AMENDMENT TO EMPLOYMENT AGREEMENT

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Exhibit 10.4

2009 AMENDMENT TO EMPLOYMENT AGREEMENT

        This 2009 Amendment to Employment Agreement (this " Amendment "), entered into the fourth day of February, 2009, effective as of January 1, 2009, is by and between Dynamic Materials Corporation, a Delaware corporation (the " Company "), and Yvon Cariou, a resident of the State of Colorado (" Executive "). This Amendment amends the Employment Agreement dated April 23, 2008 to be effective as of January 1, 2008, between the Company and Executive (the "Agreement").

        In consideration of the foregoing and the mutual covenants and promises contained herein, and for other good and valuable consideration, the receipt and sufficiency of which are hereby acknowledged, the parties agree as follows:

         1.      Term .    Section 3 of the Agreement is hereby amended by replacing "2008" with "2009" in both occurrences.

        2.      Salary.     Section 4(a) of the Agreement is hereby amended by replacing "$440,000" with "$455,400."

        3.      Non-discretionary Annual Bonus.     Section 4(b)