SSPC PAINT 29
Zinc Dust Sacrificial Primer, Performance-Based
|Publication Date:||1 April 2002|
This specifi cation covers highly pigmented primers that contain zinc dust as the major pigment component (minimum 65% by weight in the dry fi lm) and are defi ned by their ability to protect ferrous substrates.
The vehicle type may be inorganic (Type I) or organic (Type II).
Each primer type (I and II) is classifi ed according to the level of exterior performance at a severe marine site. Laboratory performance criteria are also included.
This specifi cation does not cover weldable preconstruction primers such as SSPC-Paint 30.
Zinc-rich coatings, both topcoated and untopcoated, have been used successfully in a wide variety of environmental zones. For a detailed breakdown of applicability of various types of zinc-rich coatings in different environmental zones, refer to SSPC-PS Guide 12.00. Consult the coating manufacturer for specifi c exposure recommendations
This coating is intended for application by spray for use by itself or as a primer in a multi-coat system.