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Thursday, August 18, 2011

Power tools, such as power wire brushes, can burnish or polish a steel surface. What is the main problem with this?

A burnished surface requires more primer.
Burnished surfaces will develop rust bloom that interferes with adhesion.
Burnishing destroys profile and adhesion of the primer.
Burnishing the surface makes it a better conductor of current and therefore accelerates corrosion.

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Previous Quizzes from the Past Week

Wednesday, August 17, 2011
The epoxy curing agent phenalkamine is derived from what source?

Tuesday, August 16, 2011
What US organization produces concrete surface profile chips to assess the level of profile achieved by surface preparation of concrete?

Monday, August 15, 2011
In the protective coatings industry, the phrase “Swedish Standards” most often refers to what?

Friday, August 12, 2011
Which one of the following generic coating types protects steel from corrosion by sacrificial action?

Thursday, August 11, 2011
Which of the following statements about Material Safety Data Sheets (MSDS) for coatings is true?

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