Polypropylene

Polypropylene, or PP, offers a useful balance of stiffness, relatively low density and chemical resistance. It is widely used in woven packaging, fibres, injection-moulded components and household or industrial products.

Common PP applications include:

• Woven sacks
• Raffia tapes
• Injection moulding
• Thermoformed products
• Fibres and nonwovens
• Caps and closures

High-Density Polyethylene

HDPE is known for toughness, moisture resistance and good chemical resistance. It is commonly used in rigid and semi-rigid products.

Applications include:

• Containers and bottles
• Pipes and fittings
• Crates and pallets
• Caps
• Film
• Blow-moulded products

Low-Density Polyethylene

LDPE offers greater flexibility and softness than HDPE. It is commonly selected for flexible films, liners and coating applications.

Applications include:

• Packaging film
• Industrial liners
• Bags
• Extrusion coating
• Flexible tubing
• Agricultural film

Beyond the Polymer Name

Two PP grades may perform differently because of their melt flow, molecular structure and additive package. The same applies to HDPE and LDPE.

Before purchasing, manufacturers should define:

• Processing method
• Melt flow rate
• Density
• Mechanical requirements
• Additive requirements
• Regulatory requirements
• Final application

CarboCore sources polymer grades according to defined customer requirements, helping manufacturers connect commercial availability with technical suitability.