Red shades
Iron oxide red
The most used iron oxide colour: opaque red for coatings, concrete products, plastics and primers. Shade and particle size by grade; ask the pigment team for the current grade list.
Iron Oxide · United States
Iron oxide pigments, red to black in powder or dispersion.
Iron oxide pigments in red, yellow, black and brown for coatings, concrete and plastics, as powder or ready liquid dispersion.
Samples and data sheets come straight from the team that makes the product.
4 coloursred · yellow · black · brown
Powder · liquidincl. transparent black
ISO 9001 · 14001certified group
30+ countriesserved since 1992
Product brochure
Four iron oxide colours, powder or dispersion.
Iron oxides are the workhorse inorganic pigments: opaque, light and weather resistant, alkali stable and low cost per tonne. Hongda supplies the standard colours as powder and, where the line needs it, as liquid dispersions.
Yellow and brown shades
Iron oxide yellow and brown
Yellow oxides for coatings and building materials, and brown blends for earth tones in construction and plastics. Heat limits are lower than red, so state your process temperature.
Powder · transparent black dispersion
Iron oxide black and dispersions
Black oxide in powder for concrete, coatings and plastics, plus liquid dispersions such as transparent black, ready to dose in coatings and inks without in-house grinding.
Buying it right
Iron oxide pigments without grinding in house.
Iron oxide pigments are a low cost way to color a coating, until the plant has to grind and disperse the powder. Mill time and dust add up.
Hongda ships the four standard colors as powder and, where the line needs it, as liquid dispersions such as transparent black, ready to dose in coatings and inks.
The oxides are sourced from Ningbo Reayoung, a Hongda group company. The pigment team gives the current grade list with shade and particle size.
The partnership
What a Hongda partnership gives you.
Experience
Documentation, logistics and compliance are routine here after three decades of cross-border trade. Hongda exports to more than 30 countries and works with over 500 distributors worldwide, so the paperwork your market requires has most likely been solved here before.
Product
Seven registered brands, from Dragon Dyes to Chemtech, all backed by Hongda's in-house R&D teams. Dyes, pigments, additives and functional chemicals come from the same group, so you can widen your catalogue while keeping a single supplier.
Supply
You buy at origin, in the quantities a distributor needs to stay competitive in its market. Volume pricing, consolidated shipments and production planned around your forecast give you the economics to defend margin against any local reseller.
Support
Samples, datasheets and technical answers come straight from the team that makes the product. Formulation advice, matching against your current reference and follow-up after delivery are part of the partnership, included from the first order.
Questions
What buyers ask before the first order.
01Which colors of iron oxide pigments are available?
Red, yellow, black and brown, plus brown blends for earth tones.
02What dosage of iron oxide pigments goes into concrete?
Normally 1 to 5% on cement weight. Match the shade on a cured sample, since the cement changes it.
03Do yellow iron oxide pigments take high heat?
Yellow and brown oxides have lower heat limits than red, so state your process temperature when you ask for a grade.
04Who produces Hongda's iron oxide pigments?
Ningbo Reayoung, part of Hongda Group. The pigment division answers for each shipment.
Where it ships from
Made in Ningbo, shipped to the United States.
Hongda ships from Ningbo, China, to distributors in more than 30 countries, North America included. Samples, data sheets and documents for each order come from the team in Ningbo.
- Office
- 11th Floor, Office Park Building, 535 Qingshuiqiao Road, Ningbo Hi-Tech Park, Ningbo, Zhejiang Province 315040, China
- Plant
- 365 Beihai Road, Ningbo Petrochemical Economic and Technological Development Zone, Ningbo, Zhejiang Province, China
Strategic partners
Ready to represent Hongda in your market?
Write directly to the partner team, or send the short application. It reaches Hongda's partner team by email.
Textile Chemistry
Pigments & Colorants
Performance Additives
Functional Chemicals
info@hongda-chem.comOr call the group directly: +86 574 87907888