Recycled HDPE Granules for Blow Moulding: Quality Checklist
Recycled HDPE can perform very close to virgin resin in blow moulding - if the source material and reprocessing quality are properly controlled.
Why HDPE Recycles Well
HDPE is one of the most widely recycled plastics because its melt processing tolerance is relatively forgiving and post-consumer or post-industrial HDPE (from bottles, cans, crates) can be reprocessed multiple times with manageable property loss when properly sorted and cleaned.
What to Check Before Using rHDPE
Before committing to a recycled HDPE supplier for blow moulding, verify:
- Melt flow index (MFI) consistency across batches
- Contamination level - odour, visible specks or foreign material
- Colour consistency, especially for natural or light-coloured containers
- Source traceability (post-industrial vs post-consumer)
Where Additives Help
Impact modifiers and stabilizer packages are often used with recycled HDPE to compensate for property variation introduced during prior processing and use, helping bring performance closer to virgin-grade consistency.
Typical Applications
Recycled HDPE granules are commonly used for non-food-contact containers, pails, crates, pipe applications and other blow-moulded or injection-moulded products where cost efficiency and sustainability targets matter.
Siya Polymer supplies recycled HDPE granules with consistent MFI and low contamination for blow moulding and injection moulding applications.
View Recycled Granules →
