scope:

This specification covers a slow drying French process zinc oxide, raw linseed oil and alkyd primer suitable for use over hand-cleaned steel.

This primer is suitable for exposures in Environmental Zones 1A (interior, normally dry) and 1B (exterior, normally dry), and is intended for brush, roller or spray application over steel surfaces prepared in accordance with SSPC-SP 2, "Hand Tool Cleaning," or better. (See Note 9.6.) Within the limitation stated in 2.1 it is suitable as a shop primer, field primer, maintenance primer, or intermediate coat and is to be applied in accordance with SSPC-PA 1, "Shop, Field, and Maintenance Painting of Steel." If the primed part of the structure is to be exposed to the weather, it should be topcoated as soon as practical.