Applications / Masterbatch

Micronized Pentaerythritol for Flame-Retardant Masterbatches

Engineered for maximum loading, flawless processing, and superior flame-retardant performance.

>70%

Loading Concentration

D50

<10um

Optimal D50

Processing

Strand Breakage

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The Extrusion Challenge

Traditional pentaerythritol causes processing issues.
Micronization delivers the solution.

Traditional Pentaerythritol

Coarse particles lead to screen clogging and strand breakage.

Screen clogging and back pressure

Irregular strands and breakage

Poor dispersion and surface defects

Lower loading, higher cost

Micronized Pentaerythritol

Fine, uniform particles enable smooth extrusion and stable production.

Clean screens, stable output

Zero strand breakage

Excellent dispersion and surface quality

High loading, better cost efficiency

How It Works

Strong Char. Stronger Protection.

Pentaerythritol acts as a carbon source in intumescent systems. Under heat, it promotes dehydration and crosslinking, forming a stable, expanded char that insulates the substrate and blocks heat and mass transfer.

1. Heating

Pentaerythritol begins to dehydrate and generate active intermediates.

2. Crosslinking

Intermediates react with acids and blowing agents to form a crosslinked carbon network.

3. Foaming

Non-combustible gases expand the softened layer, building up an intumescent char structure.

4. Char Layer

Stable, porous char insulates the substrate and protects against heat and flames.

Promotes Intumescence

Enhances Char Integrity

Reduces Heat Release

Improves Fire Resistance

Masterbatch Processing Workflow

Engineered Process.
Consistent Performance.

A controlled, end-to-end process ensures high-performance intumescent masterbatch with reliable fire safety.

Raw Material Premixing

Micronized pentaerythritol blended with polymer carrier and APP, emphasizing low dust and flowability for automated feeding.

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Twin-Screw Compounding

High shear dispersion preventing screen clogging and ensuring homogeneous melt.

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Cooling & Pelletizing

Stable extrusion with zero strand breakage, uniform and defect-free pellets.

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Moisture Control & QC

Strict moisture management in heavy-duty moisture-proof packaging to preserve IFR system integrity.

Consistent Quality

Reliable Performance

Process Stability

Sustainable Value

Industrial Packaging

Flexible packaging options to meet your production and logistics needs.

25kg Bags

Moisture-proof multi-layer bag with inner liner.

500kg / 1000kg Bulk Bags

Premium FIBC for bulk handling and efficient loading.

Palletized Delivery

Secure packing and wrapping for safer transportation.

Our Customers

Typical Industry Customers

Masterbatch Manufacturers

Fine, uniform particles enable high loading with consistent color and flame retardant performance.

Plastic Compounders

Excellent thermal stability and dispersion for reliable processing and UL94 V-0 compliance.

Plastic Additives Manufacturers

Reliable carbon source that works seamlessly with APP and other additives in IFR formulations.