Browse Publications Technical Papers 2009-01-0894
2009-04-20

Viscosity Controlled High Penetration Wax on Paint Process 2009-01-0894

The wax has been developed that is able to protect vehicle bodies from corrosion for extended periods. Vehicle bodies, composed mainly of steel components, are prone to corrosion, in particular side sills and various flanges. These sections are generally coated with wax to protect them from water, primary corrosion-promoting factor, enabling manufacturers to offer extended warranties against corrosion perforation in their catalogs. However, while corrosion prevention systems using conventional waxes contribute significantly to increased corrosion prevention, they result in increased costs, for example for dedicated wax coating lines in production lines, and require specialized lines tailored to specific vehicle bodies. Areas such as side sills and various flanges require careful attention to, and particularly high standards of, corrosion prevention. Particular attention to coating required in these areas tends to increase volume of coating material employed. Wax developed in this project displays excellent penetration. Material is able to penetrate into flanges, enabling achievement of a high level of anti-corrosion performance using a reduced amount of wax. This wax is controlling the viscosity characteristic of material, and is not accompanied by change of the conventional paint process. Moreover, it could permeate in a little coverage, and an opposite flow-out is prevented and wax with a high rustproof function was developed.

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