Polypropylene is quoted by melt flow rate — measured at 230°C under a 2.16kg load, and a PP figure quoted at 190°C is either a PE number or a mistake — but the MFR is the second question. The first is which polypropylene it is. Homopolymer is stiff and clear-ish and covers raffia, fibre, BOPP film and much of the injection trade. Random copolymer buys clarity and impact for thin-wall packaging and pipe. Block, or impact, copolymer buys low-temperature toughness for crates, automotive and appliance parts. They are not interchangeable at the same melt flow, however alike the datasheets look.

Filled and nucleated compounds are a further step away from the base resin: talc and glass loading change the mechanical numbers, the density and the price, so a percentage should be on the offer rather than in the seller's head. Nucleation shows up as cycle time and clarity rather than as a line on the specification, and it is a real difference in what a lot is worth.

The lots below are live and public, with tonnage, MOQ, packaging, Incoterm, port and country on each one.

The longer version

How to buy polypropylene (PP) in the UK: homopolymer, copolymer, prime and recycled — what the grades and the numbers mean, and what to check before you commit to a lot.

PP grade reference

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

HD168MO · HE125MO · HG385MO · BorPure HJ333MO · HC205TF · all grades

Related categories

PP — Regrind · PVC · HDPE · LDPE · LLDPE · PS · ABS · PET / PETE

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