SSPC-Paint 40,, Zinc-Rich Moisture-Cure Polyurethane Primer, Performance-Based

 
This specification contains performance requirements for an organic zinc-rich moisture-cure polyurethane primer with a thermoset binder. SSPC PS 12.00 describes this primer as a Type II B zinc-rich primer. This zinc-rich moisture-cure polyurethane primer is characterized by the presence of free polyisocyanate groups capable of reacting with atmospheric moisture in order to form a film.