Overview
Color masterbatch base material is a pre-dispersed pigment concentrate embedded in a polymer carrier resin. It serves as an efficient alternative to raw pigments for plastic coloring, ensuring uniform dispersion and reducing processing time. The base typically consists of 30-70% carrier polymer (e.g., LDPE, PP), 20-50% pigments, and additives like dispersants or stabilizers. Its formulation allows precise color matching while minimizing dust pollution during production.
Physical and Chemical Properties
The material exhibits high thermal stability (up to 300°C for some grades) and excellent lightfastness. Its granular form ensures easy handling and precise dosing during extrusion or injection molding processes. Key parameters include melt flow index (MFI) matching the host polymer, typically 2-20 g/10min. Particle size ranges from 1-3mm for optimal mixing. The base material shows low volatility but may degrade under prolonged UV exposure without stabilizers.
Main Applications
Primary use is in mass production of colored plastic products, including food packaging (FDA-compliant grades), automotive interiors, and consumer goods. It reduces pigment waste by up to 30% compared to direct coloring methods. Specialty applications include conductive masterbatches (with carbon black) for ESD protection and effect pigments for metallic/pearlescent finishes. Recent developments include biodegradable bases for eco-friendly plastics.
Safety and Storage
While generally non-hazardous, some pigment-loaded bases may contain heavy metals (e.g., cadmium-free alternatives). Always consult SDS and ensure proper ventilation during high-temperature processing. Store in original packaging at <30°C with <50% humidity. Shelf life is typically 12-24 months. Avoid contamination with moisture or other chemicals that may affect dispersion properties.
B2B Procurement Guide
When sourcing, specify: polymer compatibility (PE, PP, ABS etc.), pigment concentration, and regulatory requirements (REACH, FDA). Request lab-scale compatibility tests before bulk orders. Leading manufacturers include Clariant, Ampacet, and Cabot. MOQs usually start at 500kg, with prices varying by pigment type (organic pigments cost 20-30% more than inorganic). Consider toll manufacturing for custom colors.
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