Other Names:
Polietilene a Bassa Densità, Polyethylene Low Density, PE-LD, LD Polythene, LD Polyethylene, Borpure, Stamylan, Alcudia, Attane, Clearflex, Eltex, Eraclene, Escorene, Lucalen, Lupolen, Petrothene, Purell, SURPASS, Braskem PE, Total PE
Specification Summary
- Purity: ≥99%
- Form: Granules, pellets, powder, sheets, films
- CAS No.: 9002-88-4
- Molecular Formula: (C2H4)n
- Molecular Weight: 28.05 g/mol (per repeating unit)
Product Description
Low-Density Polyethylene (LDPE) is a semi-rigid, translucent thermoplastic with a waxy appearance and soft touch. It is lightweight, highly flexible, and exhibits excellent impact resistance. LDPE is insoluble in water and most polar solvents but can be dissolved in certain organic solvents at elevated temperatures. The material is non-corrosive, non-alkaline, and offers outstanding resistance to acids, bases, and a variety of chemicals. Its low crystallinity and high branching give LDPE its characteristic flexibility and ductility, making it suitable for applications requiring softness and resilience.
Low-Density Polyethylene Specification Table
| Property | Value/Description |
| Density | 0.915–0.935 g/cm³ |
| Melting Point | 105–118 °C |
| Tensile Strength at Yield | 8–12 MPa |
| Elongation at Break | 100–400% |
| Flexural Modulus | 200–400 MPa |
| Impact Strength | No break (excellent) |
| Water Absorption (24 hrs) | <0.01% |
| Dielectric Constant (1 MHz) | 2.25–2.30 |
| Surface Resistivity | >10¹⁵ Ω/sq |
| Heat Deflection Temperature | 40–65 °C |
| Chemical Resistance | Excellent (acids, bases, alcohols) |
| Appearance | Semi-rigid, translucent, waxy, odorless |
Downloadable TDS:
A comprehensive Technical Data Sheet (TDS) is available for download, providing detailed physical, chemical, and processing parameters for LDPE.
Application Sectors and Industries of Low-Density Polyethylene
Packaging:
LDPE is the material of choice for flexible packaging films, shrink wraps, food bags, and liners. Its low cost, ease of sealing, and moisture barrier properties make it indispensable for protecting and preserving products in transit and storage.
Consumer Goods:
From squeeze bottles and toys to kitchenware and storage containers, LDPE’s flexibility, impact resistance, and food safety compliance make it ideal for a wide range of everyday products.
Agriculture:
Used in greenhouse films, mulching sheets, irrigation pipes, and silage wraps, LDPE provides UV stability and weather resistance, ensuring reliable performance in harsh outdoor environments.
Medical and Healthcare:
LDPE is used in disposable gloves, medical tubing, pharmaceutical bottles, and laboratory supplies. Its chemical inertness and ability to be sterilized make it suitable for sensitive healthcare applications.
Construction:
LDPE is found in vapor barriers, protective films, and insulation coatings. Its flexibility and moisture resistance help safeguard building materials and structures against environmental factors.
Electrical and Electronics:
LDPE serves as insulation for wires and cables, offering excellent dielectric properties and resistance to moisture ingress, which is vital for electrical safety and performance.
Industrial Applications:
LDPE is used for chemical-resistant linings, tank covers, work surfaces, and vacuum-formed end caps. Its corrosion resistance and ease of fabrication make it a preferred material in demanding industrial settings.
Retail and Shopping:
Carrier bags, heavy-duty sacks, and retail packaging benefit from LDPE’s toughness, lightweight nature, and cost-effectiveness, supporting both convenience and sustainability initiatives.
Automotive:
LDPE is utilized in protective films, seat covers, and interior trim components. Its flexibility and formability allow for custom-fit solutions that enhance vehicle durability and aesthetics.
Alternative Energy:
LDPE is used in encapsulation films for solar panels, cable insulation, and protective wraps in wind and solar installations, where weatherability and electrical insulation are essential.
Packaging Types
- 25 kg Bags: Standard for granules and pellets, moisture-resistant and suitable for manual or automated handling.
- Bulk Bags (FIBC): For industrial-scale applications, typically 500–1000 kg per bag, ideal for high-volume manufacturing.
- Rolls and Sheets: Supplied as continuous films or cut sheets for direct use in packaging, construction, or agricultural applications.
- Drums: Used for LDPE powders and specialty grades, providing contamination and moisture protection.
- Custom Packaging: Tailored formats such as pre-cut liners, molded parts, or specific dimensions to meet unique customer requirements.
Low-Density Polyethylene (LDPE) combines flexibility, chemical resistance, and processability, making it a versatile solution for diverse industries. For in-depth technical data, safety information, and compliance certifications, please refer to the downloadable TDS.
