Masterbatch in Plastics: A Complete Guide to White, Black, Colored & Additive Masterbatches

Mahek Gor
Aug 7
2 min read

Masterbatch in Plastics: A Complete Guide to White, Black, Colored & Additive Masterbatches

What is Masterbatch?

Masterbatch is a concentrated mixture of pigments, additives, and a carrier resin used to color or enhance the performance of plastics. It is added during the manufacturing process to give plastics vibrant colors, improved durability, and additional functionalities such as UV resistance or flame retardancy.

The process begins with selecting a carrier polymer, typically compatible with the final plastic product. Pigments and additives are then blended in precise ratios and processed in specialized machinery. This mixture is melted, cooled, and cut into uniform pellets or granules, making it easy to use during plastic production.

Types of Masterbatch

1. White Masterbatch

Contains Titanium Dioxide (TiO₂) for opacity and brightness. Commonly used in packaging, household products, and consumer goods for a clean, white appearance.

2. Black Masterbatch

Composed of carbon black and carrier resin. Offers excellent UV resistance, durability, and aesthetic value. Used in automotive parts, electronics, and construction.

3. Colored Masterbatch

Made with pigments dispersed in a thermoplastic carrier like PP or PE. More efficient and cost-effective than adding raw pigment directly. Available in a wide range of colors:

Grey: Adds neutral, modern tones. Used in appliances and pipes.

Green: Used in eco-friendly branding.

Red: Designed for UV stability and heat resistance.

Violet: Adds rich, vibrant hues to plastics.

Blue: Offers bright, consistent shades for packaging and consumer goods.

Brown: Provides earthy tones, ideal for natural-looking products.

Orange: Eye-catching, often used in safety and consumer applications.

Yellow: Bright and lively, used in toys, packaging, and automotive.

4. Additive Masterbatch

Enhances the functionality of plastics. May include:

UV stabilizers

Anti-static agents