What is HDPE?

What is HDPE?  

HDPE is a lightweight and chemically stable material used in both consumer and industrial environments. Also known as Plastic #2 in the US recycling system, this polymer is found in products ranging from milk cartons and water bottles to industrial piping and plastic lumber. While this material is non‐biodegradable and takes centuries to decompose, its chemical stability also makes it highly recyclable. However, HDPE is extremely under‐recycled compared to the capacity that it can be repurposed. HDPE can be recycled at least ten times through shredding and injection molding before experiencing any permanent material degradation.1 Furthermore, studies show that recycled plastics have lower environmental impacts than newly manufactured plastics. Using recycled HDPE plastic reduces greenhouse gas emissions by 71% and reduces total energy consumption by 88%.2 Despite these benefits, an additional 66.96 million metric tons of HDPE resin are predicted to be produced in 20223, while only around 30% of that material will be recycled.4

Poly pipe, short for polyethylene pipe, is a type of plastic piping made from polyethylene. It’s known for its flexibility, durability, and resistance to chemicals and corrosion. Here are some key features and uses of poly pipe:

Key Features:

• Flexibility: Poly pipe can bend and flex, making it easier to install in various terrains.

• Durability: It is resistant to many common causes of damage, such as vibrations, surface loads, and pressure surges.

• Chemical Resistance: Polyethylene is resistant to a wide range of chemicals, making it suitable for various industrial applications.

• Corrosion Resistance: Unlike metal pipes, poly pipe does not corrode, which extends its lifespan.

Common Uses:

• Water Supply: Often used for potable water service lines due to its safety and durability.

• Gas Distribution: Used in underground gas pipelines because of its flexibility and resistance to leaks.

• Irrigation Systems: Popular in agricultural settings for irrigation due to its ease of installation and maintenance.

• Industrial Applications: Used in various industries for transporting chemicals and other fluids.