Iron oxide pigments

Product Overview‌

WSD CHEMICAL Iron Oxide Pigments are a series of high-performance, eco-friendly inorganic color pigments, available in red, yellow, brown and black grades.

‌Key Features‌

1. ‌Excellent Weather & Chemical Stability‌: Resistant to strong sunlight exposure, extreme temperature changes, alkali, dilute acid and polluted gases like hydrogen sulfide, no color fading for long-term outdoor use.

2. ‌High Color Performance‌: Uniform fine particle size, strong tinting power up to 96%, excellent hiding power, no bleeding in water, oil or organic solvents.

3. ‌Non-toxic & Eco-friendly‌: Heavy metal content far below international safety limits, safe for applications that contact with building materials, food packaging and daily consumer goods.

4. ‌Consistent Batch Quality‌: Strict multi-stage quality control from raw material selection to final packaging, ensures no color difference between different batches, fully compatible with automated production lines.

Techenical index of iron oxide pigments

Items	Red	Yellow	Black	Brown	Blue	Green	Orange
Content ≥%	96	86	90	93	86	90	88
Moisture ≤%	1.0	1.0	1.0	1.0	1.0	1.0	1.0
Volatile(105°C)% ≤	0.8	0.8	0.5	0.8	0.8	0.5	0.5
Water Soluble %(M/M) ≤	0.3	0.3	0.5	0.5	2.5	3.0	0.3
pH value	5-7	4-6	5-8	4-7	1-6	6-9	3-7
Oil Absorption %	15-25	25-35	15-25	20-35	25-35	25-35	20-30
Tinting Strength %	95-105	95-105	95-105	95-105	95-105	95-105	95-105

‌Main Applications‌

· ‌Building Materials‌: Recommended dosage 5-8% for colored concrete, cement tiles, terrazzo, artificial marble and asbestos cement products, no negative impact on cement strength.

· ‌Coatings & Paints‌: Suitable for alkyd paint, polyurethane paint, water-based paint, anti-rust paint and powder coatings, grindable to 40-50μm for smooth surface finishing.

· ‌Plastics & Rubber‌: Perfect for UPVC pipes, profiles, wall panels, rubber parts and plastic masterbatch, maintains stable color even under normal processing temperatures.

· ‌Other Industries‌: Widely used in ceramics, ink, paper making, magnetic materials and cosmetic coloring scenarios.

‌Packaging, Storage & Shelf Life‌

· ‌Packaging‌: 25kg net weight per kraft paper bag with inner polyethylene liner, or 500kg/1000kg jumbo bag as customized request.

· ‌Storage‌: Keep in a dry, cool, well-ventilated warehouse, avoid direct moisture and high temperature, do not store together with strong acidic materials.

· ‌Shelf Life‌: 24 months under proper storage conditions. We suggest finishing use once the bag is opened to avoid moisture affecting dispersion performance.

‌WSD CHEMICAL Advantage‌

With over 20 years of formulation and production experience in the PVC and chemical additive industry, we do not only supply standard iron oxide pigment grades, but also provide customized color matching, technical support for dosage testing and on-site production problem solving services, to help overseas buyers reduce formulation cost and stabilize final product quality.