| Carrier Resin | Polyethylene-based carrier, including LDPE, LLDPE, HDPE, or a compatible blend | Carrier compatibility, melt flow rate, processing temperature, and food-contact status where required | Supports uniform dispersion and reduces the risk of gels, streaks, and poor surface appearance |
| Pigment Type | Organic pigments, inorganic pigments, carbon black, titanium dioxide, or effect pigments | Pigment identity, purity, heavy-metal compliance, heat stability, and migration performance | Determines color strength, opacity, weatherability, heat resistance, and regulatory suitability |
| Recommended Let-Down Ratio | Commonly 0.5%–5.0%, depending on pigment concentration and required color depth | Technical data sheet, shade card, target color, film thickness, and application-specific dosage guidance | Affects production cost, color consistency, mechanical properties, and final opacity |
| Typical Product Forms | Uniform pellets or granules designed for extrusion, blown film, injection molding, or blow molding | Pellet size consistency, dust level, feeding behavior, and compatibility with automatic dosing equipment | Improves feeding accuracy and minimizes processing interruptions |
| Color Consistency Control | Usually controlled through laboratory color measurement and production batch comparison | Color measurement method, reference standard, batch-to-batch tolerance, and approval sample process | Important for packaging, consumer products, films, pipes, and molded parts requiring repeatable shades |
| Heat Resistance | Product-specific; many PE grades are formulated for processing temperatures commonly used in polyethylene conversion | Maximum recommended processing temperature, residence-time limits, and color-change test results | Prevents fading, discoloration, pigment degradation, and loss of appearance during processing |
| Light and Weather Resistance | Varies from standard indoor grades to enhanced outdoor grades using suitable pigment systems and stabilizers | Blue-wool rating, accelerated weathering data, UV exposure conditions, and intended service environment | Essential for agricultural film, outdoor containers, construction products, and long-life plastic articles |
| Quality Management | Quality systems commonly include incoming-material inspection, laboratory testing, and batch release procedures | Quality certificate, inspection records, traceability system, retained samples, and corrective-action process | Reduces variation in color, dispersion, moisture, pellet quality, and production performance |
| Regulatory Documentation | Documentation may include safety data sheets, technical data sheets, and declarations for applicable markets | Applicable food-contact, restricted-substance, toy-safety, packaging, and environmental compliance documents | Required when colored PE products are used for food packaging, toys, medical items, or regulated exports |
| Customization Capability | Custom shades, carrier selection, pigment concentration, opacity, and application-specific formulations are commonly available | Sample development procedure, color-matching method, development charges, and approval timeline | Helps match brand colors, recycled-resin variations, thin-gauge films, and demanding molding conditions |
| Packaging Options | Common options include moisture-resistant bags, lined sacks, cartons, and palletized export packaging | Net weight per bag, pallet configuration, moisture protection, labeling, and shipping-mark requirements | Protects pellets during storage and transport and supports efficient warehouse handling |
| Buyer Selection Priority | Best evaluated through application trials rather than price alone | Compare dispersion, color strength, dosage, compliance, delivery reliability, technical support, and total cost | A structured trial and documentation review provides a more reliable basis for selecting a PE coloring masterbatch supplier |