The first question on any LLDPE offer is which comonomer it was made with, because that is what the price difference is. Butene (C4) is the commodity end. Hexene (C6) and octene (C8) buy toughness, puncture resistance and better sealing, and a metallocene grade buys more of both again — which is why stretch film converters chasing thinner gauges pay for it. An offer that says only "LLDPE 1.0 MFI" has left out the part that determines whether it works on the line.

Rotomoulding is the other half of this market and behaves nothing like film. It is bought as powder rather than pellet, ground to a controlled particle size, and the grades are specified for long oven cycles with antioxidant packages to match. Do not treat a rotomoulding grade as a film grade at similar numbers.

On the reprocessed side, stretch film scrap is the volume: clear, unprinted, low-stretch-wrap-core content, and the question is always whether pallet wrap has been kept apart from printed and coloured film. Roll ends from a converter are the cleanest stream anyone offers.

The longer version

LLDPE grades and pricing explained: butene, hexene, octene and metallocene — what the grades and the numbers mean, and what to check before you commit to a lot.

LLDPE grade reference

Specifications for the producer grades that turn up in this trade, taken from the producers’ own datasheets:

Anteo FK1820 · Anteo FK1828 · all grades

Related categories

PVC · HDPE · LDPE · PP · PS · ABS · PET / PETE

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