EXT-WHITE White Masterbatch

EXT-WHITE White Masterbatch for Modern Polymer Processing

White masterbatch is much more than a simple colour additive. The final appearance of a plastic product depends on the interaction between titanium dioxide, carrier polymer, additives, dispersion quality, processing temperature, product thickness, surface characteristics and the formulation of the final polymer compound.

EXTRUTEX EXT-WHITE has been developed around these principles. The range is designed to provide manufacturers with a practical and flexible solution for producing white plastic products with consistent colour and opacity. Depending on the application, the formulation can be engineered for different polymer carriers, processing conditions, whiteness levels, opacity requirements, heat exposure and end-product specifications.

Titanium dioxide is one of the most important components in a white masterbatch. Its optical characteristics, particle size distribution, surface treatment and compatibility with the polymer system all influence the final result. The concentration of titanium dioxide is also a critical formulation parameter. A higher pigment concentration can provide strong colouring efficiency and opacity, but the overall masterbatch performance also depends on dispersion, carrier selection and the requirements of the final product.

For this reason, EXT-WHITE is available as an application-oriented product family rather than a single universal formulation. EXTRUTEX can develop or select suitable grades for commodity polymers, engineering plastics and specialised applications.

Designed for Different Levels of White Performance

Plastic manufacturers do not always require the same type of white. A packaging film may require economical colouring and controlled opacity, while a premium injection-moulded component may require a specific shade, excellent surface appearance and long-term colour stability.

Standard White Applications

Standard EXT-WHITE grades are suitable for applications where a clean and uniform white appearance is required at an economical processing cost. Typical applications include disposable products, general packaging, bags, containers, household articles and other high-volume plastic products.

High-Opacity White

High-opacity formulations are intended for products where hiding power and coverage are important. These grades can be considered for films, sheets, packaging containers, thermoformed products and moulded components where the underlying material or colour needs to be effectively masked.

Technical White

Technical white masterbatches are designed for more demanding polymers and processing conditions. These applications can include engineering plastics, electrical components, appliance parts, technical mouldings and compound formulations where thermal stability, dispersion and appearance must be carefully controlled.

Special White Shades

White does not necessarily mean one single colour. Modern consumer products may require warm white, cool white, neutral white, bluish white or other controlled shades. EXTRUTEX can support colour development according to the customer's polymer, product geometry, processing technology and target appearance.

Polymer Carrier Compatibility

EXT-WHITE is available across a broad range of polymer systems. Different carrier polymers are used to achieve compatibility with the base resin and the intended manufacturing process.

White Masterbatch for Film Packaging

Film production requires stable pigment dispersion because even small variations can become visible across a large film surface. EXT-WHITE grades for film applications can be formulated for extrusion processes where consistent colour and opacity are required.

Depending on the final film structure, EXTRUTEX can provide white masterbatch solutions for polyethylene, polypropylene and selected specialty polymers. The formulation can be adjusted according to film thickness, required opacity, extrusion temperature and target dosing ratio.

White masterbatch is commonly used in packaging films where a controlled white background, branding surface or hiding effect is required. Consistent dispersion is particularly important for printed or visually demanding packaging.

Injection Moulding and Technical Products

Injection moulding places particular demands on colour consistency because processing conditions can change rapidly during filling, packing and cooling. The masterbatch must disperse effectively and remain stable within the processing window of the polymer.

EXT-WHITE technical grades can be considered for appliance components, electrical parts, consumer products, housings, automotive components, industrial parts and other injection moulded products.

For premium products, the white shade can be developed according to a reference sample or defined colour target. EXTRUTEX can work with customers to establish the required shade, polymer compatibility and processing conditions before industrial production.

Technical Data Overview

Advantages of EXT-WHITE

Quality and Production Control

Consistency is fundamental to masterbatch production. Variations in pigment dispersion, carrier composition or processing conditions can affect the final plastic product. EXTRUTEX therefore approaches white masterbatch production as a controlled compounding process rather than simply a pigment mixing operation.

Laboratory development in Austria supports formulation optimisation, while manufacturing in China provides scalable industrial production. Depending on the customer requirement, development can include laboratory trials, colour evaluation, processing trials and production-scale validation.

This approach is particularly valuable for customers who manufacture large volumes of packaging, technical components or consumer products and need a stable masterbatch solution across multiple production batches.