What Is High Density Polyethylene & How We Use It

High-density polyethylene (HDPE) is becoming more and more popular, but what is it? Why is it so popular?

HDPE is a thermoplastic polymer used at SmartGuard to manufacture various consumer goods, packaging materials, and industrial products.

It is a linear, synthetic ethylene molecule known for its high strength, toughness, and resistance to impact and chemical erosion.

Key Properties Of HDPE

  1. High Strength-To-Density Ratio
  2. Chemical Resistance
  3. Weather Resistance
  4. Fatigue Resistance
  5. Food Safety

1 – High Strength-To-Density Ratio

HDPE has a strength-to-density ratio ranging from 0.93 to 0.97 g/cm3, which makes it a popular material for lightweight products. While this ratio is comparable to that of low-density polyethylene, HDPE is still typically the superior product because the molecular structure has fewer branches and increased intramolecular forces, which translates to higher tensile strength and ability to withstand heat.

2 – Chemical Resistance

HDPE is relatively resistant to erosion from various chemicals, including many acids, alkalis, and organic solvents. This makes it a popular choice for containers, piping systems, and sink drive cover designs in industrial and laboratory settings.

3 – Weather Resistance

High-density polyethylene is also resistant to erosion from the elements. It is durable against climate-related stressors like UV radiation, moisture, and temperature changes, making it an ideal material for outdoor industrial activities.

4 – Fatigue Resistance

HDPE is highly resistant to fatigue, meaning that—compared to other thermoplastics—it can withstand repeated mechanical stress and strain without being as likely to crack or shatter. This makes it an excellent material for a floor hole cover or other products requiring high tensile strength.

5 – Food Safety

Lastly, many types of HDPE are food-safe and won’t leach harmful chemicals into food or beverages. Most virgin (non-recycled) HDPE containers are FDA-approved for food handling. However, it’s important to check with the individual manufacturer before placing an order if you intend to use a particular polyethylene product in the food service industry.

Applications Of High-Density Polyethylene

  • Producing Strong, Weight-Bearing Covers For Flooring & Sinkholes
  • Packaging Like Milk Containers, Shampoo Bottles, & Trash Bags
  • Constructing Pipes For The Transportation Of Water, Gas, & Sewage
  • Creating Outdoor Furniture, Playground Equipment, & Plastic Lumber
  • Manufacturing Industrial Tanks, Bins, & Pallets.

Choose SmartGuard For HDP Covers Shipped Nationally

Overall, HDPE is a versatile and durable material with many advantages over other plastics, making it a popular choice for many products and applications. If you’re a construction or industrial manager in search of sturdy and safe electrical covers, HVAC duct caps, or custom display cases, SmartGuard can help. Our acrylic, polycarbonate, and high-density polyethylene products are reliable and affordable. Please browse our inventory today to check out our wholesale offers.