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NEXAMITE® R305: melt strength enhancer for rPE

More stable extrusion in variable rPE streams

NEXAMITE® R305 is a proven melt strength enhancer for recycled polyethylene. It targets rPE applications — above all film and extrusion blow moulding — where low melt strength and variable feedstock quality limit process stability.

Nexam Chemical states that R305 helps stabilize extrusion, makes demanding PCR streams easier to process, and improves tolerance to contamination variability.

Product identity

PolymerRecycled PE (rPE)
Typical applicationBlown film, extrusion blow moulding and pipe
ManufacturerNexam Chemical AB
DistributorNEXChem Türkiye

Key benefits

  • Helps improve melt strength and extrusion stability.
  • Supports processing of variable or demanding PCR feedstock.
  • Helps increase process tolerance to contamination and blend variability.
  • Helps reduce sag and improve dimensional stability in extrusion blow moulding.
  • Can support improved environmental stress crack resistance (ESCR) in HDPE.

Typical applications

  • Blown film and flexible packaging
  • Container and bottle production by extrusion blow moulding
  • Pipe extrusion
  • rPE compounding and conversion lines with variable PCR

Technical assessment note

R305 is a polyethylene product; keep the rPE/PE context explicit on the page at all times and never list it alongside polyester additives. PCR source, PE type, MFR, contamination profile, target PCR ratio and end-use conditions must be part of the trial plan.

Related applications

Melt strength for recycled PEIn rPE streams, low melt strength and feedstock variability directly limit line stability and the achievable P…

Frequently asked questions

Which polymer is R305 for?
It is for recycled polyethylene (rPE). For polyester (PET) applications, M021200 or M992000 are the relevant grades.
In which processes is it used?
Nexam Chemical gives film, extrusion blow moulding and pipe applications as examples.
Does it help with variable PCR quality?
The product is positioned for processing demanding PCR streams and improving contamination tolerance; the result depends on feedstock and process conditions.
How does it differ from R401?
R305 is the proven NEXAMITE solution; NexCircle® R401 is presented as the next-generation rPE solution targeting high efficiency at lower addition levels.

The technical statements on this page are based on the manufacturer’s current public product information. Dosage, temperature and performance targets are defined per line through technical trial.

Sources: Nexam — recycled PE solutions

Request a technical assessment

Let’s assess your rPE stream. Share your PE type, PCR source, MFR range, process problem and target application, and we will run a technical pre-assessment for R305 or an alternative.

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