HDPE GRANULES

Here are some features of High-Density Polyethylene granules:

Feature                                                                                                      Description
High Strength-to-Density Ratio                                                           Strong and rigid material while remaining lightweight.
Excellent Chemical                                                                                  Resistance Resistant to most acids, bases, and solvents. Ideal for industrial use.
UV Resistance (Optional)                                                                      Can be UV-stabilized for outdoor applications (with additives).
Moisture Resistance                                                                                Virtually non-absorbent; perfect for water and liquid storage applications.
Impact Resistance                                                                                    Strong resistance to impact and stress cracking.
Electrical Insulation                                                                                 Excellent insulator; widely used in cable and wire insulation.
Corrosion Resistance                                                                               Does not rust or corrode, even in harsh environments.
Thermal Stability                                                                                      Melting point around 130°C; can withstand moderately high temperatures.
Recyclability                                                                                               100% recyclable; widely reused in non-critical applications.
Food Grade Compatibility                                                                       Virgin HDPE is FDA-approved for food and beverage storage.
Process ability                                                                                             Easily processed using blow molding, injection molding, and extrusion.

Optional Additive Features (Customizable):
UV stabilizers for longer outdoor life
Color masterbatches for custom coloring
Anti-static agents
Flame retardants for safety-critical applications
Biocide additives for hygiene products

list of applications of High-Density Polyethylene granules across various industries:

Packaging Industry
Blow-molded bottles – for milk, detergents, shampoo, etc.
Caps and closures
Containers – chemical and food-grade
Plastic drums & barrels

Pipes and Fittings
Water supply pipes
Sewage and drainage pipes
Gas distribution pipelines
Irrigation pipes (sprinkler & drip systems)

Construction & Infrastructure
HDPE sheets and geomembranes – for waterproofing and landfills
Plastic lumber & decking
Barrier fencing
Cable conduits & ducting

Automotive Sector
Fuel tanks
Inner fender liners
Bumpers
Battery cases

Household & Consumer Products
Buckets, bins, tubs
Chairs, stools, and furniture
Storage containers
Toys

Agriculture
Agricultural films and mulch
Fertilizer containers
Irrigation pipes and fittings

Medical & Personal Care
Sanitizer bottles
Medical waste bins
Pharmaceutical containers (virgin HDPE only)

Industrial & Recycled Applications
Recycled HDPE is used for:
Road barriers
Flower pots
Pallets and crates
Non-critical packaging

Specialty Uses
3D printing filaments
Composites and blended plastic parts
Protective helmets or casings

The formulation of HDPE granules depends on the intended application (e.g., food-grade, pipe-grade, blow molding, etc.). Below is a general breakdown of how HDPE granules are formulated during production, including base polymer, additives, and processing aids.

Base Resin (Polymer)
High-Density Polyethylene (HDPE)
Typically 95–99% of the formulation
Made via slurry, gas-phase, or solution polymerization using Ziegler-Natta or metallocene catalysts
Molecular weight and distribution are tailored to application (e.g., pipe, film, injection molding)

Additives (1–5%)
Additive Type                                        Function                                                                                               Typical Loading
Antioxidants                                          Prevent degradation during processing                                         0.1–0.5%
UV Stabilizers                                        Improve outdoor weatherability                                                     0.2–1.0%
Processing Aids                                     Reduce melt friction during extrusion/injection                         0.1–0.5%
Slip & Anti-block Agents                     Improve film processing, prevent sticking                                    0.05–0.3%
Antistatic Agents                                   Reduce surface static buildup                                                          0.1–0.3%
Pigments or Masterbatch                    Provide color (e.g., black, blue, green)                                           1–3% or as needed
Flame Retardants                                 For electrical or automotive applications                                       Optional

Optional: Recycled HDPE Blend
Recycled HDPE flakes or pellets may be blended (0–80%) with virgin HDPE
Used for non-food-grade or industrial products
Requires compatibilizers or stabilizers to maintain performance

Processing Considerations
MFI (Melt Flow Index) is tailored by formulation:
Blow molding: 0.3–1.0 g/10 min
Injection molding: 5–20 g/10 min
Film grade: <1 g/10 min
Extrusion or Pelletizing Temperature: 180°C – 250°C

HDPE GRANULES GRADES

HDPE granules of Aras Petrochemicals company have various grades and each formulated for specific applications based on melt flow index (MFI), density, and additive package. Here are some of our most common HDPE grades:

Blow Molding Grade
Used for bottles, containers, jerry cans, and drums.

Property                                           Typical Range
MFI (190°C/2.16kg)                      0.3 – 1.0 g/10 min
Density                                             0.950 – 0.958 g/cm³
Features                                           Good stiffness and impact resistance
Applications: Milk bottles, shampoo bottles, chemical drums, fuel tanks

Injection Molding Grade
Used for rigid products like caps, crates, bins, and household goods.

Property                                           Typical Range
MFI                                                   4 – 30 g/10 min
Density                                             0.945 – 0.960 g/cm³
Features                                           High flow for detailed molds
Applications: Caps & closures, tool handles, toys, storage boxes

Film Grade
Used for making thin and flexible plastic films.

Property                                          Typical Range
MFI                                                  0.05 – 0.3 g/10 min
Density                                            0.940 – 0.955 g/cm³
Features                                          Excellent elongation and tensile strength
Applications: Grocery bags, agricultural films, packaging films

Wire & Cable Grade
Insulation and jacketing of electrical cables.

Property                                           Typical Range
MFI                                                   0.2 – 0.5 g/10 min
Features                                           High dielectric strength, flexibility, flame retardance (optional)
Applications: Coaxial cables, power cables, telecom wiring

HDPE Granules of Aras Petrochemical packing would be:

25 kg polypropylene bags with 1250 kg shrink and wrapped pallets.

Capacities for a different way of shipments would be as below:

20ft & 40ft containers for sea shipment:

20ft FCL: 13 MT/25 kg bags with pallets

40ft FCL: 25 MT/25 kg bags with pallets

The capacity of a Full truck: 25 MT

HDPE GRANULES STORAGE

Best practices for storage of HDPE granules to maintain quality and prevent contamination or degradation:

Storage Conditions
Factor                                                                    Recommendation
Environment                                                        Store in a cool, dry, and well-ventilated area
Temperature                                                        Ideally between 10°C to 40°C (avoid prolonged heat exposure)
Humidity                                                              Keep below 60% RH to prevent moisture absorption
Sunlight                                                                Protect from direct sunlight and UV exposure (can degrade polymer properties)
Ventilation                                                           Ensure good airflow to avoid condensation and odor build-up

Packaging
HDPE granules are typically packed in:
25 kg polyethylene or laminated bags
Keep packaging sealed until use to avoid dust, moisture, or contamination
Use moisture-proof liners in bulk bags if stored for long periods

Safety & Handling
Store away from open flames, heat sources, or oxidizing chemicals
Static electricity can build up in plastic granules; use grounded equipment when handling in bulk
Use pallet racks or raised platforms to avoid direct contact with floors (especially in damp environments)

Shelf Life
Virgin HDPE granules can be stored for up to 2–3 years under proper conditions without significant degradation
Recycled granules may have a shorter shelf life depending on purity and additive stability

Common Storage Risks to Avoid
Risk                                                                            Effect
Moisture absorption                                               Poor melt flow, surface defects in molding
UV exposure                                                             Polymer chain breakdown, discoloration
Contamination                                                         Black spots, foreign particles in final product
Temperature swings                                                Condensation in packaging, granule clumping