What is the primary goal of SSPC-SP 11 cleaning?

The primary goal of SSPC-SP 11 cleaning is to ensure the removal of all visible surface contaminants from the substrate prior to painting. This standard emphasizes achieving a clean surface that is free from oils, dirt, old paint, and other debris that could interfere with the adhesion of the new coating. By adhering to this practice, the integrity and longevity of the coating system are significantly enhanced, leading to better performance and durability.

In contrast, preparing for painting without standards does not ensure the same level of cleanliness and could compromise the effectiveness of the coating. Minimal cleaning effectiveness is not aligned with the detailed requirements of SSPC-SP 11, which aims for thorough cleaning rather than just basic improvement. Lastly, while certain cleaning methods may be suitable for specific metals, SSPC-SP 11 is broader and is not limited to non-ferrous metals alone, thus does not correspond to the primary goal of the standard.