Polymers

Polyethylene

The widest-used thermoplastic we carry. Density is what separates the four sub-families, and density is what decides whether a grade will hold pressure, stretch on a wrapper, or survive a blow-moulding cycle.

About the family

Four densities, four different jobs

Polyethylene is specified by density and melt flow before anything else. HDPE gives stiffness and pressure rating, which is why it dominates pipe and rigid containers. LDPE gives softness, clarity and seal strength for film. LLDPE adds puncture and tear resistance to thin film. MDPE sits between the two and is the usual choice for gas distribution pipe.

We carry all four from established producers, in the grades that actually move: pipe resins in PE 80 and PE 100 classes, film grades for blown and cast lines, and injection grades for caps, crates and housewares.

Scale showing LDPE, LLDPE, MDPE and HDPE by increasing density with chain branching diagrams
Sub-families

Polyethylene types we supply

Each page lists the complete grade range we hold or can source to order.

High density polyethylene. Stiff, pressure-rated and chemically resistant, and the resin behind water and gas pipe, jerry cans, crates and industrial containers.

Low density polyethylene. Soft, clear and easy to seal, with the flexibility that shrink film, liners and lamination layers depend on.

Linear low density polyethylene. Where LDPE gives clarity, LLDPE gives strength: puncture resistance, tear strength and the ability to run film thinner.

Medium density polyethylene. A deliberate compromise between HDPE stiffness and LDPE stress-crack resistance, which is what buried gas pipe needs.

Applications

Where polyethylene is used

Almost every polyethylene enquiry we receive falls into packaging, pipe or moulded goods. Tell us the process and the end use and the grade shortlist usually writes itself.

Need a polyethylene grade matched to your line?

Send us the process, the output rate and the grade you are running now. We will come back with the closest equivalents we can supply, with data sheets attached.

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