CATHAY INDUSTRIES > Products > Iron Oxides > CATHAYCOAT™ Black BA31


Product OverviewTypical PropertiesColor Display

Synthetic Black Iron Oxides from Cathay Industries are high-quality inorganic pigments suitable for a wide range of demanding colorant applications.  Typical applications include architectural paints, industrial coatings, product finishes, wood stains, plastics, rubber, ceramics, inks, paper, concrete, stucco, cement and mortar.

The excellent dispersion characteristics, high tint strength and blue shade undertones of our Synthetic Black Iron Oxides make them particularly useful in many of today’s high performance coatings.  These products offer a solution for dispersion, flocculation and floatation problems commonly associated with carbon black pigments.  These cost-effective pigments eliminate the need for more expensive dispersant additives and pre-dispersed liquid pigment concentrates.

BA31 is a black powder pigment with high heat stability and excellent weathering and light fastness.  It is produced with strict quality tolerances and reliable performance, which offer outstanding opacity, acid and alkali resistance, chemical resistance, exterior durability and compatibility.

As all CATHAYCOATTM “BA” grade Iron Oxide Black, BA31 is highly micronized to offer easy dispersion with high-speed impeller (Cowles type) milling equipment or single & twin screw extruders.

Properties Description
Appearance Black Powder
Chemical Composition Fe3O4
Particle Shape Cubic
Pigment Index Black 11
Color Index 77499
CAS No. 1317-61-9





* Tint Tone: reduction with TiO2 1:4.
**The color shades presented here are as accurate as monitor settings allow.**
**They may be different from shades in actual application and are for reference only.**


Micronized A Grade
Coating, Leather Coatings, Paints & Colorants, Paper, Plastic, Masterbatches, Car Refinish, Printing Inks, Others