What Is Masterbatch? 15 Frequently Asked Questions Answered

The Most Common Masterbatch Questions, Answered

Masterbatch is the standard way to color and enhance plastics, yet buyers — especially those new to plastic manufacturing — have many questions about what it is, how it works, and how to use it. This FAQ answers the 15 questions we hear most often from customers worldwide.

What is masterbatch?

Masterbatch is a concentrated mixture of pigment or additive encapsulated in a carrier resin, formed into pellets. Plastic processors add a small amount (typically 0.5%–5%) to their base polymer during processing to achieve color or functional properties.

What are the main types of masterbatch?

The main types are color masterbatch (black, white, and colored), additive masterbatch (UV stabilizers, antistatic, desiccant, slip, etc.), and special-effect masterbatch (pearlescent, metallic, matte, glow-in-the-dark). There are also liquid colorants and custom formulations.

How is masterbatch different from pigment powder?

Masterbatch is pre-dispersed pigment in a polymer carrier, while pigment powder is raw pigment. Masterbatch offers better dispersion, no dust, precise dosing, and higher color consistency — at a slightly higher upfront cost but lower total process cost.

How much masterbatch do I add?

Typical loading ratios are 0.5%–5% by weight, depending on pigment concentration and desired color depth. Your masterbatch supplier will recommend the correct ratio for your specific application.

What carrier resin should I use?

The carrier should match your base polymer. Use PE carrier for polyethylene, PP carrier for polypropylene, and polymer-specific carriers for engineering plastics like ABS, PC, and PA.

Can masterbatch be used in food-contact plastics?

Yes. Food-grade masterbatch uses FDA, EU 10/2011, and GB 9685 compliant pigments and carriers, verified by migration testing. Specify food-contact requirements when ordering.

How is masterbatch quality controlled?

Quality is controlled through spectrophotometric color measurement (Delta E < 1.0), dispersion testing, melt flow index testing, moisture content testing, and batch retention samples.

What is the minimum order quantity?

MOQ varies by product and color. Custom colors typically start at 25–100 kg, while standard colors may have lower minimums. Contact MHK Color for specific MOQs.

How long does masterbatch last in storage?

Masterbatch typically has a 12–24 month shelf life when stored in a dry, cool place (15–30°C) away from sunlight and moisture.

Can masterbatch be recycled with the plastic?

Yes, masterbatch becomes part of the plastic and does not hinder recycling. NIR-detectable black masterbatch is specifically designed for sortability in recycling facilities.

How fast can I get samples?

MHK Color provides free color matching and samples within 24 hours for standard formulations, and 3–7 days for custom development.

Do you offer custom color matching?

Yes. We maintain a 30,000+ formulation database and offer free RAL, Pantone, and custom color matching with samples delivered within 24 hours.

What certifications do your masterbatches carry?

We offer ISO 9001:2015 and ISO 14001 certified production, with REACH, RoHS, FDA, EU 10/2011, and USP Class VI compliant options where required.

What information do I need to provide for a quote?

Provide your base polymer, processing method, target color (RAL/Pantone or sample), application, and estimated volume. This lets us recommend the right masterbatch and loading ratio.

How do I get started?

Contact MHK Color with your requirements, and our technical team will provide color matching, samples, and a tailored recommendation within 24 hours.