Thermoplastic Iron Oxide Pigments

Advancing the Science of Polymer Coloration

At Deqing Demi Pigment Technology Co., Ltd., we are at the forefront of thermoplastic color technology. We understand that modern polymers require colorants that can keep pace with faster cycle times and higher temperatures. Our thermoplastic series is tested across a wide variety of resins to ensure zero migration and maximum lightfastness. We provide the stability that allows our customers to push the boundaries of plastic design and manufacturing.

Thermoplastic Usage Areas

• Consumer Electronics: Heat-stable colors for phone cases and laptop housings.
• Automotive Interior: Low-fogging pigments for dashboards and door panels.
• Medical Devices: High-purity colorants for non-invasive plastic components.
• Appliance Parts: Durable, heat-resistant colors for ovens and washing machines.

Thermoplastic Grade Technical Specs

Performance Attributes

• Dimensional Integrity: No "shrinkage" or "warping" issues in large molded parts.
• Zero Migration: The color will not "bloom" to the surface or stain other plastics.
• Lightfastness: Grade 8 rating ensures the plastic won't yellow or fade in the sun.
• High Opacity: Excellent at hiding the base resin color even at low dosages.

• Q: Does this pigment affect the "Melt Flow Index" (MFI)?

  A: No, our thermoplastic grade is designed to be rheologically neutral, maintaining your resin's original flow properties.

• Q: Is it safe for children's toys?

  A: Yes, our pigments are tested for heavy metal migration and meet the EN71-3 safety standards.

Polymer Compatibility Lab

We offer "Shrinkage Testing," comparing a natural resin part to a pigmented part to ensure your precision molds will still produce parts within tolerance.

Laser Marking Compatibility: We can provide pigments that are optimized for high-contrast laser marking on plastic surfaces for serial numbers and logos.

The Science of Dimensional Stability

In thermoplastic molding, some pigments can act as "Nucleating Agents," causing the plastic to crystallize faster and shrink unevenly. We treat our iron oxides to be "Nucleation-Silent." By modifying the surface chemistry, we ensure they don't trigger premature crystallization. This allows the polymer to cool uniformly, preventing the "warping" of large or complex parts and ensuring that your production yields remain high.