In the 1980's, several processes emerged as possible replacements for chemical strippers containing methylene chloride. A viable process appears to be dry mechanical stripping using wheat starch. It is seen as promising because of its gentle treatment of aluminum alloys and composites.The process itself is reported to be operator friendly, with no fiber or primer damage even with multiple blast cycles. The media has been tested by Boeing Commercial Airplane Co. and is in production use at Beech Aircraft Corp. and Hunting Aircraft. Boeing reports that microscopic examination has shown wheat starch blasting to be smoother and less damaging to fibers compared to hand sanding.Starch blasting leaves a smooth finish on aluminum, bare or clad, and can strip aluminum skins as thin as 0.016 in. without deformation. The media is soft and forgiving and does not cause crack closure or smearing on aluminum alloys.Testing at Pauli & Griffin's facility is continuing in a joint United Airlines/Boeing/Douglas program on stripping composite substrates and should be completed this year. An approval for multiple stripping using wheat starch is expected from Boeing in the spring of 1993. Plastic media currently has a single strip approval.


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    Titel :

    Use of Starch Based Blast Media for Dry Paint Stripping


    Weitere Titelangaben:

    Sae Technical Papers


    Beteiligte:

    Kongress:

    Aerospace Technology Conference and Exposition ; 1993



    Erscheinungsdatum :

    01.09.1993




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch




    Use of Starch Based Blast Media for Dry Paint Stripping

    Pauli, R. A. / SAE | British Library Conference Proceedings | 1993


    Paint Removal Using Wheat Starch Blast Media

    Foster, T. / Oestreich, J. / North Atlantic Treaty Organization; Advisory Group for Aerospace Research and Development; Structures and Materials Panel | British Library Conference Proceedings | 1993



    Dry Media Paint Stripping-Nine Years Later

    Pauli, R. / Society of Automotive Engineers | British Library Conference Proceedings | 1994