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High chroma red iron oxide pigment with excellent lightfastness and weather resistance.
Consistent particle size distribution for superior dispersion stability in liquid systems.
Low soluble salt content, minimizing risk of corrosion in metal-coated substrates.
Non-hazardous formulation compliant with major global regulatory frameworks (REACH, RoHS).
Optimized surface treatment for enhanced compatibility with acrylic, alkyd, and epoxy resin systems.
Architectural and industrial coatings requiring durable, fade-resistant red coloration.
Plastic colorants for exterior-grade polyolefin and PVC applications.
Concrete and cementitious products including paving stones and façade elements.
Automotive refinish primers and basecoats where thermal stability up to 180°C is required.
Printing inks for flexible packaging demanding high opacity and low migration.
| Chemical Type | Synthetic Iron Oxide (α-Fe₂O₃) |
| Product Form | Dry powder |
| Appearance | Free-flowing reddish-brown powder |
| Primary Applications | Coatings, plastics, construction materials, inks |
| Key Features | UV stable, non-toxic, low dust, pH neutral |
| Benefits | Reduced settling in dispersions, minimal impact on cure kinetics, recyclable in compatible polymer streams |
| Storage Conditions | Store in cool, dry location; protect from moisture and direct sunlight |
| Shelf Life | 24 months from date of manufacture under recommended storage |
Q1: What is the primary function of 3M S38HS Pigment in polymer systems?
A: 3M S38HS Pigment is a high-performance heat-stable pigment designed to provide consistent, durable coloration in thermoplastics and thermosets exposed to elevated processing temperatures. It is engineered to minimize thermal degradation and maintain color integrity during extrusion, injection molding, and other high-heat compounding processes.
Q2: Is 3M S38HS Pigment suitable for food-contact applications?
A: 3M S38HS Pigment is not pre-certified for food-contact use. Its suitability for such applications depends on final formulation, regulatory review, and compliance verification by the compounder or end-user under applicable regional regulations (e.g., FDA 21 CFR, EU Framework Regulation). Customers must conduct full migration and safety assessments as part of their qualification process.
Q3: How should 3M S38HS Pigment be dispersed in polymer matrices?
A: Optimal dispersion is achieved using standard melt-compounding equipment—such as twin-screw extruders—with appropriate screw configuration, residence time, and temperature profile. Pre-blending with carrier resin or masterbatch dilution is recommended to ensure uniform distribution and avoid agglomeration.
Q4: What types of polymers is 3M S38HS Pigment typically compatible with?
A: This pigment demonstrates broad compatibility with engineering thermoplastics including polypropylene (PP), polyethylene (PE), polyamide (PA), polycarbonate (PC), and thermoplastic elastomers (TPEs). Performance may vary depending on polymer polarity, melt viscosity, and processing conditions—preliminary compatibility testing is advised.
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E-mail: wangxingqiang@ericwchem.com
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Building A1, Jiete Industrial Park, Huangpu District, Guangzhou City, Guangdong Province, China
