What is HDPE?
HDPE (High-Density Polyethylene) film is made from polyethylene with a linear molecular structure and high crystallinity, having a density of approximately 0.94–0.97 g/cm³. This structure results in strong intermolecular bonds, producing a film with high tensile strength (~38 MPa) and remarkable resistance to impact and tearing.
In addition to its high mechanical strength, HDPE film has very low permeability to moisture, chemicals, and oils, making it a suitable choice for harsh environmental applications such as packaging chemical products, sealing, or protective coatings for construction materials, among others.
Furthermore, HDPE can withstand higher temperatures (up to ~135 °C) compared to other polyethylene types. By adding UV stabilizers, its resistance to sunlight and outdoor conditions is enhanced, enabling use in outdoor environments. Its recyclability with the code #2 also makes this film an economical and sustainable option for various industries.
Feature Typical Value / Range Industrial Application & Advantages
Density 0.917–0.968 g/cm³; avg. ≈0.951 g/cm³ (MatWeb) Light-weight strength; ideal for packaging, liners, and sheeting.
Melting Point ~127–133 °C Supports moderate heat applications; thermal stability in processing.
Tensile Strength (film MD/TD) Yield: ~29 – 30 MPa; Break: MD ~55 MPa, TD ~48 MPa High-load resistance; suitable for sacks, liners, heavy-duty wrap.
Elongation at Break (MD/TD) MD ~300–500 %; TD ~300–500 % Flexibility to absorb impact; ideal for film stretching & wrapping.
WVTR (Water Vapor Transmission Rate) ~5–9 g/m²·day @38 °C Excellent moisture barrier for food, chemical packaging.
Oxygen Permeability (OTR) Avg ~2,030 cc/m²·day Moderate oxygen barrier to extend shelf life of dry goods.
Environmental Stress Crack Resistance ~768 hours avg Performs well under pressure/stress conditions in packaging.
Dart Impact Strength ~212 g avg Resists puncture and tearing during handling and shipping.
Elmendorf Tear (MD/TD) MD ~24 g, TD ~332 g avg High tear resistance for tough industrial environments.
Coefficient of Friction Static ~0.175; Dynamic ~0.284 Smooth film delivery and processing, resistant to jamming.
Melt Flow Index ~5 g/10 min avg Indicates consistent extrusion and processing behavior.
Structure Linear, highly crystalline polymer Enables rigidity, chemical resistance, and food-grade quality.
Why Choosing SupraPol as Your Supplier?
SupraPol, as a supplier of plastic products, prioritizes exporting high-quality products at reasonable prices to various parts of the world across five continents. One of our significant advantages is providing consultation and guidance to our clients throughout the entire purchasing process and assisting those who seek advice and detailed information.
Request a Free Quote or Sample Today, BOPP price
If you would like to place an order or request a price estimate, you can do so through this link. Additionally, if you need purchasing advice, you can contact our colleagues and experts via the contacts listed below.
Alfred –
What is the minimum order quantity (MOQ) for HDPE film?
mahdi –
What HDPE film grades are available for packaging, industrial, or medical use?