HDPE (High-Density Polyethylene) Plastic Injection Molding

HDPE molded parts are a staple in many industrial applications – from idler pulleys to roller chain sprockets, the professionals at Retlaw have the skills to produce thermoplastic HDPE components for your company at the most affordable prices. We have a wide range of plastic types and products to choose from in our Wisconsin facility, and we can accommodate all your HDPE plastic part needs whatever they may be.

The professionals at Retlaw Industries use HDPE for a variety of parts, and we can manufacture any component you need for strength and durability at a low cost. Our plastic injection design, tooling, molding, and assembly services are key contributors to dozens of industries, making us one of the most trusted plastic manufacturing companies in the nation. Make Retlaw Industries your top source for all OEM parts.

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What is HDPE (High-Density Polyethylene) Plastic?

HDPE is a thermoplastic polymer made from petroleum commonly used for plastic injection molding, HDPE was first created in the 1930s in the UK and used in radar cables during WWII. After it was commercially introduced in the U.S., its popularity took off and continues to be used today for a wide variety of industrial and commercial applications.

Why is HDPE So Commonly Used?

HDPE is a versatile plastic with notable strength, flexibility, and resistance to chemicals and abrasion, making it an ideal choice for a wide range of applications. HDPE is used by people every single day, and you might not even realize it. Its ideal properties, specifically for packaging and assembly, make it one of the most widely used plastics in the world. It is also extremely versatile and can be used for manufacturing plastic milk jugs, auto parts, pipes, and much more.

HDPE Plastic Material Characteristics

Also known as polyethylene high-density (PEHD), HDPE is a polyethylene thermoplastic made from petroleum. Its high strength-to-density composition and versatility make HDPE a very popular type of plastic, serving a wide array of industries. From food storage containers to piping systems, HDPE does it all.

Benefits of HDPE include:

Weather-resistance
Malleability
Light-weight
Cost-effective
Hygienic
Recyclable
FDA-approved

High-Density Polyethylene can be molded into a variety of different shapes and sizes. With its linear structure and optimal strength, HDPE can withstand environmental stresses such as high-temperature treatment and physical impact.

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HDPE Plastic Specifications

Name	High-Density Polyethylene
Chemical Formula	(C₂H₄)n
Melting Point (°C)	~130°C
Tensile Strength	~4550 psi
Impact Strength	~3.0 ft-lb/in notched Izod
Hardness Level (Rockwell)	R65 – R95
Flexural Modulus	~233000 psi

Where is HDPE plastic used?

HDPE is one of the most widely used plastic materials. Some of its many uses include:

Hard Hats

Swimming Pool Materials

Plastic Piping

HDPE Plastic for Corrosion-Resistant Piping

Plastic Bottles

Food Storage Containers

Folding Tables & Chairs

Why Choose Retlaw for HDPE Injection Molding?

Choose Retlaw Industries for custom HDPE parts manufacturing and benefit from our transparent pricing, extensive shop capabilities, and commitment to customer satisfaction. With over 40 years of experience and a long track record of success, trust Retlaw Industries for the manufacturing of high-quality HDPE parts and components your business needs to succeed.

Plastic Injection Molding Services

Design & Engineering: Customized design and engineering for versatile HDPE plastic applications.

Tooling: Precise tooling for efficient HDPE plastic molding.

Molding: High-quality molding for consistent HDPE plastic products.

Assembly: Seamless assembly of complex HDPE plastic components.

Prototyping: Rapid prototyping to refine HDPE plastic designs quickly.

How much do HDPE plastic injection molded parts cost?

High-density polyethylene (HDPE) injection molded parts cost between $0.25 to $8 per piece for medium-sized production runs (10,000+ pieces). Final costs shift based on product dimensions, design features, and manufacturing volume. Simple, standard parts start near $0.25 per piece, while larger or more complex designs can reach $8 each. Equipment setup, including mold design and fabrication, requires an initial investment between $9,000 and $40,000.

Get in touch with Retlaw Industries for an accurate HDPE part quote customized to your project specifications.

Custom Plastic Parts for Over 10 Industries

HDPE Plastic Components Available Nationwide

HDPE is a plastic in high demand nowadays. Retlaw Industries has the resources and expertise to deliver exceptional HDPE molds, parts, and components nationwide. Nationwide shipping is always available including to Wisconsin, Washington, Pennsylvania, Ohio, New York, Minnesota, Michigan, Indiana, Illinois, and Colorado.