Titre : |
Does wax protect from acid precipitation : Waxed automotive finishes in the Acid Dew and Fog Test |
Type de document : |
texte imprimé |
Auteurs : |
Ulrich Schulz, Auteur ; Wolfgang Zwick, Auteur |
Année de publication : |
1997 |
Article en page(s) : |
p. 784-790 |
Note générale : |
Bibliogr. |
Langues : |
Anglais (eng) |
Tags : |
Peinture 'Industrie automobile' 'Revêtement protecteur' Cire 'Précipitation acide' Feuil Dégradation 'Résistance intempérie' 'Propriété optique' Brillant |
Index. décimale : |
667.9 Revêtements et enduits |
Résumé : |
Tests with seven different wax recipes and two current types of coating showed that wax on coating surfaces is not a barrier against acid atmospheric precipitation. Waxing can both slightly inhibit and enormously increase the harmful effect of aggressive precipitation on the coating. This effect depends not only on the wax formulation but also to a crucial extent on the type of coating surface to be protected. The majority of the waxes tested led to greater coating damage than that which occurred with the unwaxed samples. Reliable conclusions about the effect of a special wax formulation can be made only after appropriate weathering tests on the various types of finish to be protected with that wax. The ADF test, which simulates practical conditions in a polluted environment better than conventional weathering tests, proved to be suitable for differentiating between the various wax formulations. |
Note de contenu : |
- Effect of the wax formulation
- Effect of the quantity of wax applied and the ageing state of the coating surfaces to be waxed
- Effect of waxing on coating ageing under natural weathering conditions |
Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=11422 |
in EUROPEAN COATINGS JOURNAL (ECJ) > N° 9/97 (09/1997) . - p. 784-790