Transparent Iron Oxide Pigment Brown

Rich, transparent brown tones with controlled tinting strength. Designed for coatings, inks, plastics, architectural concrete and specialty finishes.

Why choose our Transparent Iron Oxide Brown?

High transparency: preserves substrate or binder clarity while providing warm brown tones.
Stable: good lightfastness and weather resistance in pigmented systems.
Easy to disperse: optimized surface characteristics for aqueous and solvent systems.
Consistent batches: tight particle size distribution for predictable color strength.

Applications

Transparent iron oxide pigment brown can be used in automotive coatings, wood coatings, architectural coatings, industrial coatings, powder coatings, art paint, plastics, nylon, rubber, printing ink, cosmetics, tobacco packaging and other packaging coatings.

Packaging & logistics

Available in 25 kg kraft bags, 500 kg FIBCs and bulk. Custom packaging and private-label shipments available on request. Typical lead time: contact sales for current stock and MOQ.

Safety & handling

Non-flammable powder. Avoid inhalation of dust; use standard PPE (dust mask/respirator, gloves, goggles). Refer to MSDS/SDS for full handling instructions.

Technical Specifications

‍Product Name: Transparent Iron Oxide Pigment Brown
Color Index: Pigment Red 101,Pigment Yellow 42,Pigment Black 11
C.I. No.: 77491,77492,77499
CAS No.:1309-37-1,51274-00-1,12227-89-3
EINECS NO.:215-168-2,257-098-5,235-442-5
Molecular Formula: Fe2O3+Fe2O3.H2O+Fe3O4‍

Appearance	Light brown powder
Content of Fe2O3 %	82 min
PH Value	4.0-7.0
Oil Absorption	20-30
Residue on 320 mesh,%	0.05max
Water soluble, %	0.5 max
Volatile at 105 degree	3.0 max
Tinting strength, %	98-102
Water resistance	5
Alkaline resistance	5
Acid resistance	5
Solvent resistance	5

Formulation & dispersion tips (quick)

Pre-wet pigment in the chosen carrier at low shear before high-shear milling to avoid air entrapment.
For maximum transparency, match refractive index of binder where possible and minimize high-scattering fillers.
Use dispersants compatible with your binder (anionic vs non-ionic for waterborne; fatty acid derivatives for polyolefins).

Note:The data contained here are based on our current knowledge and experience. It is the responsibility of user to test our products before the final application.

How does a transparent iron oxide differ from standard iron oxide pigments?

Transparent iron oxides are processed and surface-treated to reduce light scattering, producing color with lower hiding power and higher clarity. They are designed to impart warm brown tones without obscuring the substrate or binder—useful when you need color without full opacity.

What are practical dispersion steps to keep the pigment transparent in plastics?

Key points: (1) use masterbatching at high load in a compatible carrier resin; (2) minimize mixing with highly scattering fillers (e.g., TiO₂); (3) control shear and temperature during extrusion to avoid pigment aggregation. Surface treatments (e.g., fatty acid ester sizing) improve compatibility with polyolefins.

How can I predict final shade and ensure batch-to-batch color consistency?

We recommend: (1) run a small trial masterbatch and measure color (CIELab/ΔE) under your exact processing conditions; (2) keep records of lot CoA parameters (particle size, oil absorption); (3) request spectral data and a printed or molded sample from us before scale-up.