EXT-COLOR® Colored Masterbatches

EXT-COLOR® Colored Masterbatches by EXTRUTEX

Product Details

EXTRUTEX is a specialized producer of colored masterbatch with research and development based in Austria and production facilities in China. Under the EXT-COLOR® brand, the company delivers concentrated pigment systems engineered for reliable performance across a wide range of polymers and processing technologies. Every batch is formulated to protect process stability, deliver consistent visual results, and meet the technical and regulatory demands of modern plastics manufacturing.

Understanding Color Masterbatch

A color masterbatch is a highly concentrated mixture of pigments and dispersants carried in a polymer resin that is fully compatible with the base material being colored. When dosed into the raw polymer during molding, extrusion, or other conversion processes, the masterbatch disperses uniformly, imparting the desired hue, opacity, and surface appearance without the handling difficulties and dust issues associated with pure pigments.

EXT-COLOR® masterbatches are supplied as free-flowing granules. Processors simply blend them at the recommended let-down ratio—typically between 1% and 5% depending on color strength and polymer—using volumetric or gravimetric dosing equipment. The result is a finished part that exhibits uniform color, excellent covering power, and the brightness required for both functional and aesthetic applications.

Core Principles of EXT-COLOR® Production

EXTRUTEX builds every EXT-COLOR® product around three non-negotiable principles.

First, the masterbatch must never create process problems. It must not cause wastage, increase scrap rates, or interrupt production schedules. Pigment selection, carrier resin choice, and dispersion technology are optimized so that melt viscosity remains stable, die build-up is minimized, and cycle times stay consistent.

Second, color intensity, brightness, and covering characteristics must be satisfactory from the first kilogram to the last. Visual performance is the primary reason customers specify a color masterbatch; therefore every formulation is engineered to deliver high tinctorial strength and clean, vibrant shades that remain stable under the thermal and shear conditions of the intended process.

Third, every order must arrive with the same tone and the same quality. Batch-to-batch consistency is achieved through rigorous standardization of raw materials, tightly controlled compounding parameters, and a comprehensive quality-control regime that includes spectrophotometric measurement, dispersion testing, and application trials.

These principles are applied equally to standard polyolefins and to more demanding technical and engineering plastics.

Regulatory Compliance and Application Suitability

EXT-COLOR® masterbatches are formulated to satisfy the specific requirements of the end-use application. Grades suitable for food-contact packaging are available, meeting the relevant migration and overall composition limits. Compliance with ROHS, REACH, and other international chemical-control regulations is standard for the product range. Where additional certifications—such as heavy-metal-free formulations, low-halogen content, or specific automotive approvals—are required, EXTRUTEX develops dedicated grades and supplies the necessary documentation.

Polymer-Specific Formulations

EXTRUTEX produces EXT-COLOR® masterbatches based on the full spectrum of commercially important carrier polymers. Each carrier is selected for maximum compatibility with the target resin so that mechanical properties, surface finish, and processing behavior remain uncompromised. The current portfolio includes:

• PE Masterbatch (LDPE, LLDPE, HDPE carriers)
• PP Masterbatch (homopolymer and copolymer carriers)
• PS Masterbatch (general-purpose and high-impact grades)
• ABS Masterbatch
• SAN Masterbatch
• PA Masterbatch (PA6, PA66, and specialty polyamides)
• PC Masterbatch
• PMMA Masterbatch
• PBT Masterbatch
• PET Masterbatch
• PES Masterbatch
• PVC Masterbatch (rigid and flexible systems)
• EVA Masterbatch
• TPU Masterbatch
• PLA Masterbatch

This polymer-specific approach ensures that the masterbatch melts and disperses at the correct temperature window, avoids phase separation, and supports the full range of conversion technologies: injection molding, blow molding, film and sheet extrusion, profile extrusion, fiber spinning, thermoforming, and additive manufacturing.

Processing Technology Support

EXT-COLOR® masterbatches are designed to perform reliably in every major plastics conversion process. In injection molding they provide rapid color development and excellent surface gloss. In blow molding and extrusion blow molding they maintain color uniformity even in thin-walled sections. Film and fiber applications benefit from high dispersion quality that prevents die-line defects and maintains mechanical strength. Profile and sheet extrusion grades are formulated for consistent opacity and weatherability when required. The same masterbatch technology also supports 3D-printing filament production, particularly with PLA-based systems.

Custom Color Development and Rapid Sampling

Meeting demand for new colors begins with the sample process. EXTRUTEX maintains a large color archive and a deep library of pigment and dye combinations accumulated over years of development. Qualified colorists use this archive together with modern spectrophotometric tools to match customer standards quickly and accurately.

Once a target shade is approved, the laboratory scale-up and production trials follow standardized protocols so that the commercial batch replicates the approved sample. Turnaround times for new color development are among the shortest in the industry because of the combination of experienced personnel, extensive historical data, and efficient laboratory compounding equipment.

Expertise in Technical and Engineering Plastics

Coloring technical plastics and engineering resins is a more delicate task than coloring commodity polyolefins. Higher processing temperatures, greater sensitivity to additive interactions, and stricter performance requirements demand specialized know-how. EXTRUTEX has accumulated substantial experience in this field through its Austrian research and development center.

For polyamides, polycarbonate, PBT, PET, and other engineering polymers, pigment systems are selected for thermal stability and resistance to migration. Carrier resins are matched to the base polymer to preserve impact strength, heat-deflection temperature, and dimensional stability. Dispersion quality is elevated because incomplete pigment dispersion can create stress concentrators or surface defects that compromise part performance. The higher expectations placed on masterbatch quality in these applications are met through tighter process controls and more rigorous incoming-material and finished-product testing.

Applications Across Industries

EXT-COLOR® masterbatches serve a broad spectrum of end-use markets:

• Automotive interior and exterior components
• White goods and large household appliances
• Small household appliances and consumer electronics
• Cable jacketing and insulation
• Panels and profile systems
• Thermoformed packaging and trays
• Film packaging (flexible and rigid)
• Blow-molded bottles and containers
• Pipe and fittings
• Raphia and woven products
• Tableware and food-service items
• Garden and outdoor furniture
• Office furniture
• Toys and promotional articles

In each sector the masterbatch is tailored to the specific combination of polymer, processing method, regulatory constraints, and performance criteria.

Production Technology and Quality Infrastructure

All EXT-COLOR® masterbatches are produced on modern compounding lines in China that include both counter-rotating and co-rotating twin-screw extruders. These machines deliver the high shear and precise temperature control necessary for optimal pigment dispersion. Continuous investment in state-of-the-art equipment ensures that dispersion quality, pellet uniformity, and residual moisture levels meet the most demanding specifications.

Raw materials—pigments, dispersants, and carrier resins—are sourced from approved suppliers and subjected to incoming inspection. Production batches are monitored with in-process controls and final laboratory evaluation that covers color difference (ΔE), dispersion rating, melt-flow behavior, and application-specific tests. Only material that passes the full quality protocol is released for shipment.

Environmental Considerations and Specialty Systems

EXTRUTEX recognizes the growing importance of sustainable materials. PLA-based color masterbatches have been developed for applications ranging from packaging and coffee capsules to 3D-printing filament and certain construction products. These grades support the use of bio-based polymers while maintaining the same standards of color strength, processability, and consistency expected of conventional systems. As regulatory frameworks such as packaging and packaging-waste regulations evolve, the availability of high-performance PLA color concentrates becomes increasingly relevant for brand owners seeking to reduce environmental impact.

Economic and Operational Advantages

Using a pre-dispersed masterbatch rather than dry pigments or liquid colorants offers several practical benefits. Dust-free handling improves workplace hygiene and reduces housekeeping costs. Accurate dosing minimizes over-consumption of expensive pigments. Inventory is simplified because a single masterbatch grade can often serve multiple similar products. Most importantly, the risk of color-related rejects drops dramatically, protecting both material yield and production throughput.

Summary of Value Delivered by EXT-COLOR®

EXTRUTEX’s EXT-COLOR® range combines advanced Austrian research and development with efficient Chinese production capabilities and a disciplined quality culture. The products are engineered so that they never become a source of process interruption, always deliver the required visual performance, and arrive with the same shade and quality on every delivery. Polymer-specific carriers cover the full spectrum from commodity polyolefins to high-performance engineering resins. Applications span automotive, packaging, consumer durables, construction, and specialty markets. Custom color development is supported by an extensive archive and experienced colorists who turn samples into production-ready formulations with speed and accuracy.

Whether the requirement is a standard black for pipe extrusion, a brilliant transparent tint for PET bottles, a heat-stable color for polyamide under-the-hood parts, or a PLA-compatible shade for sustainable packaging, EXT-COLOR® masterbatches provide a reliable, economical, and technically sound solution.

For technical data sheets, regulatory declarations, sample requests, or custom color matching, contact the EXTRUTEX technical service team. Every inquiry is handled with the same commitment to quality and responsiveness that defines the EXT-COLOR® brand.