Zinc-based black rust inhibitor, rust metal member and anti-rust coating

摘要

The present invention, zinc-based black corrosion inhibitor can form a rust preventing film and the rust-preventive metallic member and the rust preventing film having a black color tone and sufficient, excellent rust resistance as black rust inhibitor it is an object of the present invention, to be provided. The present invention, zinc alloys and pigments (1) the zinc pigment and / or a zinc alloy and / or pigment (1) zinc pigment, and (2) black synthetic iron oxide, and (3) a phosphate anticorrosive pigment the weight ratio of (2) the synthetic black iron oxide ((1) / (2)) and is 85/15 to 65/35, and (2) the synthetic black iron oxide (3) the phosphate anti The mass ratio of the rust pigment ((2) / (3)) becomes 70/30 to 50/50, zinc black rust agent characterized by containing, from the zinc black anticorrosive rust preventive coating made, and to a rust-preventive metallic member formed to have the rust preventive film on the surface of the metal substrate.