AZ ROC CR-34 Painting & Wall Covering Practice Questions - Arizona ROC CR-34 Painting And Wall Covering (Residential Commercial) Examination Exam

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According to SSPC-SP1 standards, why must solvent cleaning always be performed prior to hand tool, power tool, or abrasive blast surface preparation on steel?

Solvent cleaning creates an anchor profile on bare metal. Solvent cleaning prevents grease and oil from being driven into the substrate profile during mechanical cleaning. Solvent cleaning replaces the need for a primer coat. Solvent cleaning neutralizes surface pH to 14.0.

Correct Answer:

Solvent cleaning prevents grease and oil from being driven into the substrate profile during mechanical cleaning.

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