Iron Oxide Yellow | Permanent Inorganic Yellow Pigment (313-1, 313-2, 920)

Iron Oxide Yellow (Pigment Yellow 42, Fe₂O₃·H₂O) is a classic, highstability inorganic color pigment, widely known as the “permanent yellow foundation” of the pigment industry. It features fine particle size — slightly coarser than iron oxide red and iron oxide black, with moderate dispersibility, excellent light fastness, alkali resistance, weather resistance, and excellent fade resistance for longterm outdoor exposure.

Different from easily faded organic yellow pigments, our iron oxide yellow features stable chemical properties, odor-free, low-toxic, strong tinting strength and hiding power. It is insoluble in water and can be evenly dispersed in various solid and liquid substrates. It is the preferred permanent yellow colorant for construction materials, paints, plastics, rubber and special paper industries. Not for food-contact applications unless specially certified grade.

We supply three mainstream commercial grades: 313-1, 313-2, 920, covering full scenarios of construction coloring, coating finishing and plastic & rubber coloring to meet diverse color and process demands.

• Permanent Color Retention: Ultra-high UV and weather resistance, excellent fade resistance for decades in outdoor environments, far superior to organic yellow pigments.
• Excellent Adaptability: Perfectly compatible with cement, mortar, resin, rubber, plastic and paper pulp, suitable for most civil and industrial coloring scenarios.
• Stable Chemical Performance: Strong alkali resistance, anti-corrosion and anti-aging, not affected by cement alkaline environment and outdoor harsh climate.
• Moderate Particle & Dispersibility: Fine particle size (slightly larger than iron oxide red/black), uniform powder, easy to stir and disperse, not easy to agglomerate, low application difficulty.
• Cost-Effective: High tinting strength, low dosage, stable price, ideal for large-scale industrial mass production.

All three models have Fe₂O₃ content ≥86% with stable quality. The difference lies in hue, oil absorption and applicable scenarios, supporting targeted selection for different industries:

Iron Oxide Yellow 313-1

• Features: Standard medium yellow tone, moderate oil absorption, balanced tinting strength and fluidity, universal and versatile.
• Best Applications: Universal for cement building materials, conventional interior and exterior wall paints, rubber products, daily plastic parts, the most widely used generalgrade model.

Iron Oxide Yellow 313-2

• Features: Slightly bright yellow tone on the basis of 313-1, more uniform particle distribution, better fineness and dispersibility.
• Best Applications: High-standard colored mortar, artistic wall coatings, high-grade rubber and plastic products, scenarios requiring bright and uniform yellow color without color difference.

Iron Oxide Yellow 920

• Features: Low oil absorption, excellent fluidity, fine and smooth powder, less viscosity change in high-concentration formula, good color dilution performance.
• Best Applications: Professional color paste, paint and ink, high-fluidity plastic masterbatch, EPDM rubber particles, sports ground materials, suitable for high-precision coating and molding processes.

4.1 Construction Building Materials (Core Application)

As the mainstream permanent yellow colorant for cement-based materials, it solves the problem of easy fading of organic pigments in alkaline cement environment:

• Road & Pavement: Yellow blind road bricks, colored permeable concrete, municipal sidewalk floor tiles, road isolation piers, curb stones
• Building Decoration: Yellow cement roof tiles, exterior wall real stone paint, decorative mortar, terrazzo floor, cement-based tile grout, color putty
• Recommended Dosage: 1%-4% of cement weight (1%-2% for light yellow, 2%-4% for standard earth yellow), maximum safe dosage ≤8% to avoid affecting concrete strength

4.2 Paints, Coatings & Low-Temperature Enamel

Suitable for all normal-temperature and low-temperature baking coating systems (≤160°C), with long-term outdoor anti-fading performance:

• Water-based & Oil-based Coatings: Interior and exterior latex paint, anti-rust primer, machinery equipment paint, facility protective paint, low-temperature baking enamel paint
• Special Coatings: Texture paint, wall art paint, toy protective paint, furniture decorative paint

4.3 Plastics & Rubber Industry

Stable coloring for medium and low temperature processing plastic and rubber products, no color change, uniform color:

• Plastics: PVC floor leather, plastic guardrails, garden flower pots, plastic toys, building plastic profiles
• Rubber: Sports track EPDM particles, rubber floor mats, sealing strips, rubber pipe fittings

4.4 Special Paper & Other Fields

Ideal for products requiring permanent yellow color: archival paper, decorative craft paper, special colored tape base paper, ensuring stable color for long-term storage and use.

• Mixing Principle: Dry mix pigment with base materials (cement, sand, resin powder) evenly first, then add water or solvent to stir, effectively avoid agglomeration and floating color.
• Color Adjustment: Matched with white cement for bright lemon yellow; matched with gray cement for stable earth yellow and beige tone.
• Storage Method: Sealed and dry storage, moisture-proof and dust-proof, slight agglomeration can be crushed and used normally.
• Process Limit: Strictly avoid high-temperature firing above 180°C, not applicable for ceramic glaze and high-temperature enamel cookware production.

Compared with other yellow pigments, our iron oxide yellow has irreplaceable advantages in industrial and architectural coloring:

• Permanent Weather Resistance: Resist ultraviolet radiation and rain erosion, outdoor service life up to decades, excellent fade resistance.
• Alkali & Corrosion Resistance: Adapt to strong alkaline environment of cement and mortar, no color change, no quality deterioration.
• Full Model Coverage: 313-1/313-2/920 three models meet low-end and high-end demands of building materials, coatings, plastics and rubbers.
• High Cost Performance: High tinting rate, low dosage, stable quality, suitable for bulk wholesale and customized production.

Hebei Tianhuibao Technology Co., Ltd.

Your Trusted Partner for Premium Iron Oxide Pigment Solutions