Concrete Ceramic Pigment Iron Oxide Yellow 313 Inorganic Pigment for Cement Products

Product Introduction

Our iron oxide yellow is high-purity synthetic hydrated inorganic pigment, customized for indoor & outdoor long-term coloring projects. It delivers soft, natural muted yellow tone without harsh fluorescent brightness, perfectly matching natural mineral yellow texture. Unlike cheap single-calcination iron yellow with inconsistent hue and easy discoloration, this series adopts secondary high-temperature dehydration calcination + 1250 mesh airflow ultrafine crushing dual refining craft. The whole production strictly controls particle sphericity, removes coarse agglomerates and unreacted raw materials, realizing ultra-stable batch color consistency, no color deviation for mass continuous production orders.

As non-toxic, inert eco-friendly coloring filler, iron oxide yellow owns outstanding chemical inertness and full system compatibility. It disperses evenly without flocculation or stratification in all water-based systems (latex paint, waterborne anti-rust coating, cement mortar) and oil-based systems (alkyd paint, epoxy primer, polyurethane topcoat). Equipped with grade 8 highest light fastness, it strongly blocks UVA/UVB ultraviolet rays, resisting long-term outdoor rain, strong sunlight and temperature cycle erosion, no chalking, fading or whitening after decade-long outdoor exposure. Perfect for exterior wall paint, colored permeable pavement, road marking mortar, plastic & rubber coloring, colored concrete, asphalt modification and artistic gypsum.

Stable Natural Yellow Matte Hue

Most low-end iron yellow manufacturers only carry out one-time grinding, resulting in dazzling bright yellow and obvious batch color difference. Our iron yellow passes secondary airflow classification and static powder aging treatment, presenting calm matte natural yellow with zero surface glare. Every batch undergoes spectrophotometer color inspection, ΔE≤0.8 color difference control, top industrial standard for architectural pigment. It avoids paint factory and concrete mixing plant color mismatch rework loss for large-batch production.

Excellent Alkali & Salt Corrosion Resistance

Stable crystal structure keeps intact under pH 12–14 high alkali environment, fully compatible with cement, lime mortar, gypsum and coastal saline concrete raw materials. No pigment bleeding, molecular migration, alkali fading or surface mottling even after decades buried or damp service. Effectively solves the pain point of traditional yellow pigment color loss in northern saline-alkali areas and coastal projects.

Ultra-high Dispersion, Low Production Cost

All finished powder undergoes 1250 mesh airflow ultrafine grinding and negative-pressure dust removal, no irreversible hard lumps during long-term sealed storage. Only 3–5 minutes low-speed stirring can realize full homogeneous dispersion in water/oil solvent systems, no extra dispersant or wetting agent required. Reduce raw material procurement cost and production stirring labor hours, simplify coating and mortar formula design.

Eco-friendly & Cost-saving Coloring

SGS third-party test confirms zero lead, cadmium, chromium and other heavy metal residues, non-toxic, odorless, non-carcinogenic. Fully compliant with EU REACH, RoHS and California Prop 65, smooth customs clearance for Europe, North America, Australia cross-border orders. Hiding power doubles ordinary organic yellow pigments, only 30% addition dosage to achieve full coverage, greatly cutting mass production raw material cost.

Wide Application Scenarios

Construction: Colored concrete blocks, permeable pavement, terrazzo, artificial stone, cement mortar, roof tiles Coating & Paint: Interior & exterior latex paint, industrial anti-corrosion paint, road marking paint, waterproof primer Polymer Materials: Rubber parts, plastic masterbatch, PVC profiles, asphalt color modification Other Fields: Ceramic coloring, art gypsum, abrasive auxiliary pigment

Technical Specifications

Storage, Packaging & Shipping

Packaging: Standard 25kg PE lined waterproof paper bag, customizable logo & label; pallet packaging for sea shipment to avoid extrusion damage. Storage: Dry ventilated indoor warehouse, isolate moisture and strong acid; seal package after use, shelf life 36 months under standard storage. Shipping: Non-dangerous goods, support FCL, LCL and air transport; complete MSDS & customs declaration documents provided.

After-sales Support

Free sample supply (100g–500g) for customer formula test; batch color recheck before delivery; professional pigment matching technical guidance for different coating, plastic, concrete formulas.