Bulletin 022 · regrind
HDPE scrap buyers check four things on a pallet load: resin, colour, contamination and form. Get those right and a buyer can usually say yes or no quickly.
They are the same four things we check first.
Five questions and a photo. We say what we think happens next once the pallets have been seen.
HDPE and nothing else. PP in an HDPE bale is a defect. The moulded code, the weight and the shape give it away. A buyer who cannot tell sends it back.
Black and natural are the simplest streams. Other colours are fine in their own bale. A rainbow load is a lower grade.
Labels, metal, wood, paint, oil. A buyer reads contamination as risk. The APR’s Model Bale Specifications give industry guidance on bale quality and acceptance.
Whole pallets, ground flake or bales. Whole pallets are what most sellers have. Ground flake is what many buyers want. The distance between them is the sorting and grinding job.
Whether the HDPE is natural or coloured, whether it has been washed, what the previous use was and whether any is food-contact. A buyer making black parts takes more mixed colour than one making white.
Different melt flow, different additives. A buyer after a particular grade needs to say so.
With a spec, an annual volume and a sample request. We pass these on only as the load and the buyer fit.
| Check | Wants | Red flag |
|---|---|---|
| Resin | One, labelled | Unknown mix |
| Colour | Consistent | Every colour |
| Contamination | None visible | Oil, paint, wood |
| Form | Matches their line | Whole pallets for a flake line |
No number can be given here. It depends on the load.
You can. We help when you want sorting and routing handled.
A buyer will ask whose they are first.
Processors and moulders who make parts that tolerate recycled content. We name no company.
It varies. The buyer states it.
Sources, reviewed Nov 12, 2026: Association of Plastic Recyclers; Wikipedia, high-density polyethylene.