AMPP Basic Coatings Inspector (CIP Level 1) Certification Practice Exam

A steel surface is contaminated with visible oil and grease before abrasive blasting. What should normally occur first?

Remove the oil and grease using the specified precleaning method before blasting Blast the surface first so the oil is driven into the profile Apply primer to seal the contamination Measure DFT before removing the contamination

Correct Answer:

Remove the oil and grease using the specified precleaning method before blasting

Explanation:

Oil and grease should be removed before mechanical surface preparation so they are not spread or driven into the surface and do not interfere with coating adhesion.

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