Product Overview
Iron Oxide Red 130s is a synthetic inorganic pigment produced through the precipitation of ferrous sulfate, yielding α-Fe₂O₃ (hematite) crystal structures with tightly controlled particle size distribution. The “130” designation specifies a medium-red hue with a neutral undertone, making it one of the most versatile shades in the iron oxide color family. Its outstanding heat stability (up to 300 °C), alkali resistance, and zero heavy-metal content make it fully compliant with RoHS, REACH, and EN 71-3 toy-safety standards.
Key Technical Specifications
- Fe₂O₃ Content: ≥ 95.0%
- Tinting Strength: 100 ± 5 (vs. standard)
- Oil Absorption: 20 – 30 g / 100 g
- pH (10% slurry): 4.0 – 7.0
- Moisture: ≤ 1.0%
- Sieve Residue (45 µm): ≤ 0.3%
- Average Particle Size: 0.2 – 0.5 µm
- Heat Resistance: ≥ 300 °C (no shade change)
- Light Fastness: 7 – 8 / 8 (ISO 105-B02)
Main Applications
- Construction Pigments: Coloring concrete, cement blocks, paving stones, roof tiles, and mortar
- Architectural & Decorative Coatings: Exterior wall paints, wood stains, and floor coatings
- Industrial Coatings: Anticorrosion primers (iron oxide red provides excellent rust-inhibiting properties)
- Rubber & Plastics: Colorant for rubber flooring, cable sheathing, and PVC profiles
- Ceramics & Pigment Pastes: Underglaze coloring and aqueous pigment dispersions
Packaging
Standard: 25 kg moisture-proof paper bags with inner PE liner. Woven PP big bags (500 kg / 1,000 kg) available on request. Stored in a cool, dry environment away from oxidising agents. Shelf life: 3 years in original sealed packaging.
Why Source Iron Oxide Red 130s from Great Spring?
- Consistent hue and tinting strength verified by spectrophotometer on every production batch
- Factory-direct pricing with no intermediary costs — competitive FOB Qingdao rates
- Full compliance documentation provided: COA, MSDS, SGS test reports, TDS
- Flexible packaging and private labelling for distributors and importers
- Reliable supply chain with 15+ years of export experience to 60+ countries
