Description: MONO ZINC 390 is a Micaceous iron oxide (MIO)/zinc-pigmented, one-component, moisture-
cure polyurethane primer. For use over steel or weathered galvanized metal, or as a spot primer for
marginally cleaned or blasted surfaces.
Recommended Uses:
• Structural Steel
• Chemical Processing Facilities
• Bridges
• Tanks Exteriors
• Pipes
• Water Treatment Facilities
Features:
• 65% minimum weight of zinc in dry film
• Can be applied in damp, cold, humid, or foggy conditions
• Can be applied at a minimum of -7°C (20°F) and humidity up to 99%, no dew point temperature differential
restrictions
• Mixture of MIO/zinc for high-corrosion performance
• Quick recoat times
• Cures in less time than two-component conventional primers and epoxies
• Does not become brittle with age
• No pot agitation required