An inhibitor package which is silicate-, nitrate-, borate- and phosphate-free has been developed as the basis for a world-wide automotive coolant formulation. The formulation contains aliphatic mono- and dicarboxylic acids and tolyltriazole as the sole inhibitors. Formulations containing carboxylic acid inhibitors have been studied in ASTM bench tests and found to sufficiently protect all prevalent cooling system metals. In addition, fleet tests have shown that carboxylic acid inhibitors deplete much more slowly than conventional inhibitors, making possible a much longer life coolant. Results from laboratory tests which simulate extended usage indicated that carboxylic acid-containing coolants have a significantly longer life span for the protection of all cooling system metals. Finally, the carboxylic acid/tolyltriazole inhibitor package is completely adaptable to a propylene glycol base.


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    Titel :

    Long Life Performance of Carboxylic Acid Based Coolants


    Weitere Titelangaben:

    Sae Technical Papers


    Beteiligte:

    Kongress:

    International Congress & Exposition ; 1994



    Erscheinungsdatum :

    1994-03-01




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch




    Long life performance of carboxylic acid based coolants

    Washington, D.A. / Miller, D.L. / Maes, J.P. et al. | Tema Archiv | 1994


    Long life performance of carboxylic acid based coolants

    Washington,D.A. / Miller,D.L. / Maes,J.P. et al. | Kraftfahrwesen | 1994


    Elastomer service life prediction in organic acid coolants

    Hertz,D.L. / Farinella,A.C. / Bussem,H. et al. | Kraftfahrwesen | 2001


    Elastomer Service Life Prediction in Organic Acid Coolants

    Farinella, A. C. / Hertz, D. L. / Bussem, H. | SAE Technical Papers | 2001