Applications

One product family, six very different failure modes

A masterbatch is only good or bad against a specific process. These notes describe what actually goes wrong in each application, and which part of the specification we tighten to prevent it.

Blown film & agricultural mulch film

Thin-gauge black film is the harshest test for dispersion. An agglomerate that passes a pipe line becomes a pinhole or a visible speck at 15 microns. We select for filter pressure value and screen the black for oversized particles before it reaches your extruder.

Typical loading 3–10% black in film, depending on UV requirement
Grade focus: N220 / N330 for jetness, N550 where dispersion equipment is limited
Delivered in 25 kg bags for accurate small-ratio dosing

HDPE pipe, conduit & geomembrane

Pipe standards specify carbon black content within a narrow band because it drives UV resistance and service life. The specification is only as good as the consistency of the masterbatch going in, so batch-to-batch variation is the number that matters.

Common target 2.0–2.5% carbon black in the finished pipe
N660 / N550 for high loading and good flow in thick sections
COA per batch so black content can be traceable through production

Injection molding & technical parts

Crates, caps, housings and industrial parts need fast colour development, low odour and a surface that does not show flow marks. In engineering resins the carrier has to match the base resin or you trade colour for impact strength.

PP, PS and ABS carriers matched to the base resin
N220 / N330 for deep jetness on visible surfaces
Low-odour grades for appliance and automotive interior parts

Cable & wire

Sheathing compounds use black for UV and weathering protection; semi-conductive layers use conductive black where surface resistivity is specified. Both are unforgiving about contamination.

PE carrier for sheathing and insulation compounds
Conductive and semi-conductive grades on request
Filtered and screened to keep metallic and oversized contamination out

Non-woven & geotextile

Fine-denier fibre breaks at any particle larger than the spinneret clearance. This is the application where filtration of the masterbatch matters more than the tinting strength of the black.

Tight filter pressure value specification
PP carrier for spunbond and meltblown lines
Low ash content to protect spinnerets

Automotive & appliance

Interior trim, under-hood parts and appliance housings are specified on colour consistency across production runs, not on a single sample. That means frozen black source and a documented batch range.

PP, ABS and PS carriers
Colour consistency documented against a retained standard
Low-VOC and low-odour options for interior applications

Tell us the process, and we will tell you where the risk is

Film, pipe, molding or cable — the grade recommendation changes with the line.

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