High Density Polyethylene (HDPE)

High Density Polyethylene (HDPE) is a thermoplastic polymer produced from the monomer ethylene. Known for its exceptional strength-to-density ratio, it stands as one of the most widely used plastics in the world, valued for its durability, chemical resistance, and versatility. From robust underground piping systems to food-grade containers, HDPE is the backbone of modern manufacturing.

Finding a reliable source for high-quality polyethylene is critical for industrial success. Shobeir Shimi Company is a premier supplier of High Density Polyethylene, offering a comprehensive portfolio of grades—including Injection, Blow Molding, Film, and Pipe (PE100/PE80). We bridge the gap between top-tier petrochemical producers and global manufacturers, ensuring consistent quality, competitive pricing, and seamless export logistics.

Why HDPE is the Material of Choice?

The demand for HDPE continues to grow globally because it offers a unique combination of properties that few other materials can match. It is:

• Structurally Strong: Its linear molecular structure allows for high crystallinity, making it tougher and more rigid than LDPE.
• Chemically Inert: It resists degradation from acids, solvents, and cleaning agents, making it ideal for chemical storage.
• Sustainable: HDPE is 100% recyclable (Resin Code #2), supporting the global shift towards eco-friendly production.

Whether you are manufacturing pressure pipes that must last 50 years or lightweight packaging for consumer goods, our extensive inventory ensures you receive the exact technical grade required for your production line.

Technically, HDPE is low-branched linear polyethylene, which is of low branching and could be described as High Density polyethylene resin as it is offered in pellet form. The question that customers may ask is, “what is high density polyethylene (HDPE)”? The answer is a high-strength, semi-crystalline thermoplastic utilized in the entire world as pipes, packaging, structural parts, and films due to its terrific combination of mechanical performance, processability, and cost.

HDPE Chemical Formula & Structure

The HDPE formula, or chemical formula for HDPE, is (C2H4)n(C2H4)n, the same high-density polyethylene formula that is used to explain a long chain or repeating ethylene units with a minimal number of side branches. This linear molecular structure enables the chains to be packed very densely thereby making them more crystalline and densified, which leads directly to an improvement in stiffness, tensile strength, and chemical resistance, important HDPE characteristics in engineering or packaging use.

HDPE Density Values

The density of the HDPE (High-density polyethylene) falls within 930-970 kg / m3 (0.93-0.97 g/cm3), though the variations depend on the grade and the method used in its processing. Direct conversion of kg/m 3 to g/cm 3 is::

• 1 g/cm3=1000 kg/m31 g/cm3=1000 kg/m3
• Divide the kg/m³ value by 1000 to get g/cm³.

Density Variation by Grade

Because of molecular structure, i.e. the level of crystallinity and chain branching, the density of HDPE changes. Less branching and higher crystallinity grades contain closer-packed chains, and this means that they are denser and have better mechanical strength. These variations are also caused by processing technique, molecular weight, and additives.

Influence of Density on Properties

• Stiffness: An increase in density tends to increase stiffness and rigidity, and consequently, HDPE is preferred as a load-bearing material or a structural one.
• Toughness/Impact Resistance: Toughness and impact resistance of HDPE decrease slightly with an increase in density, but its strength and dimensional stability increase.
• Processing: The lower-density materials tend to be easier to process and more flexible and elongating, whereas higher-density HDPE could need closer attention to the melt temperature and cooling rates to achieve the best outcomes.

The density as well as the balance between strength, stiffness, and impact performance of the material are not only dictated by the molecular arrangement and the method of processing, but also the final product is directed to end-use applications.

Below is a summary of the typical properties for commercial HDPE grades available through Shobeir Shimi. Please note that specific values vary by grade (Injection, Blow, Film, etc.).

Commercial buyers usually begin with grade selection, as the right HDPE grades determine product performance. Our HDPE supply includes:

• HDPE Film Grades (HF, HM Series): It finds application in high-performance films, grocery bags, industrial liners, as well as agricultural sheeting.
• HDPE Blow Molding Grades (HBM Series): Best suited for bottles, drums and containers that require high levels of stress crack resistance.
• HDPE Injection Molding Grades (e.g., 52518, EX): Provides automobile components, caps, toys, and rigid packaging.
• HDPE Pipe Grades (PE80, PE100): Pipes are required to handle the pressure of water, gas, and sewage systems.
• Rotomolding Grades & High-Flow Specialty Grades: Specialty grades aimed at tanks, playground systems and custom large molded parts.

The choice of HDPE grade is an important issue: the performance, processability and product life strongly depend on the choice of grade. Our website features high demand, trending HDPE film, pipe and injection grades, always supported with complete HDPE datasheet information.

The Virgin HDPE granules are directly produced out of the petrochemical refineries in order to provide the highest level of purity and consistency in highly sensitive technical and food contact applications.

We are one of the trusted HDPE granules suppliers providing high-quality virgin HDPE granules (not recycled), ideal for sensitive uses like food packaging, medical devices, and export. Our stock covers:

• HDPE plastic granules are suitable for film, pipe, blow molding, and extrusion.
• Bulk purchasing for manufacturers who need to buy HDPE granules in large quantities.
• Multiple packaging options (25 kg bags, jumbo bags) for easy logistics.
• Full batch certification and quality control across all supplies.​

Our expansive network includes reliable HDPE granule suppliers, HDPE resin suppliers, and specialists in both industrial and food-grade HDPE for every business need. Contact us in Shobeir Shimi to consult and place your order.

HDPE 2 Recycling Code

HDPE is instantly recognizable by its HDPE 2 recycling code, which confirms authenticity and recyclability to global buyers and sustainability managers. This hallmark allows HDPE products to be safely reused and repurposed with minimal environmental impact.

Sober Shimi is well known as a leading HDPE supplier, HDPE material supplier and HDPE resin supplier, offering direct sourcing and fast transactions for clients worldwide. Bulk HDPE supply is available for Asia, Africa, CIS, and Europe with full export certification (COA, MSDS, packing list, certificate of origin). Logistics are streamlined through Middle East ports for competitive pricing and reliable, on-time delivery.​

Why Choose Our High Density Polyethylene Materials?

There are some reasons to choose Shobeir Shimi for Polyethylene materials:

• Direct access to high-density polyethylene suppliers and premium HDPE granule supplier partners.
• Consistent HDPE material specifications and superior batch quality.
• Comprehensive technical support with every order, including detailed HDPE datasheet documentation.
• Options for long-term supply contracts supported by on-time shipments and stable pricing.

We have strength in prompt delivery, extended supply agreements and stability in prices and values that create credibility in the long term with clients worldwide. We provide confidence on an enduring basis, whether you are looking to purchase HDPE granules, develop long-term procurement relationships, or need a large quantity of HDPE. Contact us now to consult and place your order.

High Density Polyethylene (HDPE), a thermoplastic polymer, is widely valued for its strength, durability, UV resistance, and FDA compliance. The versatile HDPE plastic use spans multiple industries, making it essential for various consumer and industrial applications. Below are some common High Density Polyethylene uses.

High Density Polyethylene (HDPE), a thermoplastic polymer, is processed using various manufacturing techniques depending on its intended application. These methods ensure that HDPE retains its durability, UV resistance, and FDA compliance for safe use in food and medical industries.

• Extrusion: This method is used to produce constant–profile products such as piping, films, and sheets. Molten HDPE is forced through a die to create a continuous shape, making it ideal for water and gas pipes.
• Blow Molding: This process is used for making hollow plastic products like bottles, tanks, and containers. Air is blown into molten HDPE inside a mold, shaping it into a lightweight, recyclable
• Injection Molding: This technique forms complex, rigid parts such as toys, bottle caps, and cutting boards. Molten HDPE is injected into a mold under high pressure, producing durable, impact-resistant products.
• Rotational Molding: Used for creating large, seamless parts like storage tanks and playground equipment, this method involves slow rotation of a heated mold to evenly coat its interior with HDPE.
• Welding: HDPE parts can be joined using thermoplastic welding techniques, ensuring leak-proof connections in pipes, tanks, and industrial components.
• Thermoforming: This process involves heating High density polyethylene sheet and shaping them into trays, liners, and automotive parts. It allows for cost-effective mass production of lightweight yet strong products.

High Density Polyethylene (HDPE) is a widely used thermoplastic polymer known for its strength, chemical resistance, and recyclability. However, like any material, it has both benefits and limitations.

Benefits of HDPE

• Strength and Durability: HDPE has a high strength-to-density ratio, making it ideal for pipes, tanks, and outdoor applications.
• Chemical Resistance: Due to its Hdpe chemical properties, it withstands exposure to acids, solvents, and industrial chemicals, making it a preferred material for packaging and chemical storage.
• Low Moisture Absorption: HDPE does not absorb water, ensuring longevity in marine and underground applications.
• Easy to Fabricate and Machine: It can be easily cut, welded, and molded into various shapes for custom applications.
• Weldability: Unlike some plastics, HDPE can be thermally welded, providing strong and leak-proof joints in piping and tanks.
• Recyclability: As an FDA-compliant material, HDPE is highly recyclable, reducing environmental impact.
• Recyclability: High density polyethylene examples such as bottles, bags, and containers are highly recyclable, reducing plastic waste.
• Cost-Effectiveness: HDPE is an affordable material compared to metals and some engineering plastics.

Disadvantages of HDPE

• Difficult to Bond with Adhesives: HDPE has low surface energy, making it hard to glue without special surface treatments.
• Difficult to Print or Paint: Traditional printing and painting do not adhere well, requiring surface modification.
• Difficult to Print or Paint: High-density polyethylene structure lacks natural adhesion for printing and painting, requiring specialized techniques.
• Not Suitable for High Temperatures: The High density polyethylene formula results in a material that softens at high temperatures, limiting its use in heat-intensive applications.
• Poor Dimensional Stability: It expands and contracts with temperature changes, affecting precision applications.

High Density Polyethylene (HDPE) is one of the most commonly recycled plastics, identified by the resin identification code “2”. Its recyclability helps reduce plastic waste, minimize environmental impact, and lower the demand for new plastic production. Recycled HDPE is used in bottles, piping, plastic lumber, bins, and outdoor furniture. The recycling process involves collection, cleaning, shredding, and reprocessing into new products. Since HDPE retains its strength and durability after recycling, it is a sustainable choice for both industrial and consumer applications. By recycling HDPE, we can significantly reduce landfill waste and contribute to an eco-friendlier plastic economy.

In conclusion, high-density polyethylene (HDPE) is a highly versatile and durable thermoplastic polymer known for its linear structure and minimal branching. This unique molecular arrangement results in a dense, crystalline material with exceptional mechanical strength, stiffness, and chemical resistance. Produced using advanced catalytic methods, HDPE’s properties make it suitable for a wide range of applications, from packaging and piping to automotive and construction materials. Its combination of high tensile strength, temperature resistance, and excellent chemical stability underscores its importance in various industrial and consumer products.