Just as SSPC-SP2 and SSPC-SP3 have similar requirements for surface preparation, so too are they similar in their applications to the hot-dip galvanizing industry. In preparation for paint and powder coating, both standards are mentioned by D6386 and D7803 in the same section. They are considered interchangeable in their use of smoothing the coating and removing zinc high spots before the zinc coating is further prepared. D6386 also considers the two methods interchangeable during the surface cleaning phase of the process. A780, however, does not specifically call out SSPC-SP3 for the preparation of a damaged coating for repair by zinc rich paints.

SSPC-SP5 is not specified often in standards for the hot-dip galvanizing industry. However, A780 uses the white metal blast as the surface preparation standard for repairing a zinc coating using sprayed zinc.




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