Which treatment is typically done before applying a protective coating on metal?

Prepare for the Autobody 84C Exam with flashcards and multiple choice questions. Each question comes with hints and explanations to aid your study. Get ready for your exam!

Using a metal conditioner is typically done before applying a protective coating on metal because it prepares the surface for better adhesion and helps to remove any contaminants, oxidation, or rust that might hinder the bonding of the coating. Metal conditioners often contain acids or solvents that etch the surface slightly, providing a more chemically receptive profile for the coating. This step is crucial as it directly influences the longevity and effectiveness of the protective coating applied afterward.

Other treatments like washing the surface remove dirt and grease but do not address oxidation or rust. Applying a primer is an important step that often follows surface preparation but is not typically considered a pre-treatment step. Sandblasting is a more aggressive cleaning method that may be used, especially for heavy rust or scale buildup, but it is not the first step in every protective coating application. Therefore, using a metal conditioner effectively ensures that the surface is optimally prepared to receive a protective coating.

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