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                                                                   Exhibit 31.2
                                                                           ----


                  CERTIFICATION PURSUANT TO SECTION 302 OF THE
                           SARBANES-OXLEY ACT OF 2002

I, Mark D. Roos, Senior Vice President and Chief Financial Officer, certify
that:

1.   I have reviewed this Form 10-Q Report of Unifrax Corporation;

2.   Based on my knowledge, this quarterly report does not contain any untrue
     statement of a material fact or omit to state a material fact necessary to
     make the statements made, in light of the circumstances under which such
     statements were made, not misleading with respect to the period covered by
     this quarterly report;

3.   Based on my knowledge, the financial statements, and other financial
     information included in this quarterly report, fairly present in all
     material respects the financial condition, results of operations and cash
     flows of the registrant as of, and for, the periods presented in this
     quarterly report;

4.   The registrant's other certifying officers and I are responsible for
     establishing and maintaining disclosure controls and procedures (as defined
     in Exchange Act Rules 13a-15(e) and 15d-15(e)) for the registrant and have:

               a.   Designed such disclosure controls and procedures, or caused
                    such disclosure controls and procedures to be designed under
                    our supervision, to ensure that material information
                    relating to the registrant, including its consolidated
                    subsidiaries, is made known to us by others within those
                    entities, particularly during the period in which this
                    report is being prepared; and

               b.   Evaluated the effectiveness of the registrant's disclosure
                    controls and procedures and presented in this report our
                    conclusions about the effectiveness of the disclosure
                    controls and procedures, as of the end of the period covered
                    by this report based on such evaluation; and

               c.   Disclosed in this report any change in the registrant's
                    internal control over financial reporting that occurred
                    during the registrant's most recent fiscal quarter that has
                    materially affected, or is reasonably likely to materially
                    affect, the registrant's internal control over financial
                    reporting; and

5.   The registrant's other certifying officers and I have disclosed, based on
     our most recent evaluation, to the registrant's auditor and the audit
     committee of registrant's board of directors (or persons performing the
     equivalent function):

               a.   All significant deficiencies and material weaknesses in the
                    design or operation of internal control over financial
                    reporting which are reasonably likely to adversely affect
                    the registrant's ability to record, process, summarize and
                    report financial information; and

               b.   Any fraud, whether or not material, that involves management
                    or other employees who have a significant role in the
                    registrant's internal control over financial reporting.



Date:    08/13/03               By:/s/ Mark D. Roos
      -------------             -----------------------------------------
                                       Mark D. Roos
                                       Senior Vice President and
                                       Chief Financial Officer



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