Low Density Polyethylene (LDPE) Powders
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Low-density polyethylene (LDPE) powder is a flexible and versatile thermoplastic material. Its unique properties make it an essential choice in various fields such as packaging, agriculture, construction and healthcare. Alfa Chemistry takes pride in supplying a complete selection of LDPE powder grades that fulfill your rigorous application requirements. Our LDPE powder solutions provide versatile solutions ranging from premium packaging films to electrical insulation materials for multiple industrial sectors.
LDPE powder represents a versatile thermoplastic resin created from ethylene through high-pressure free-radical polymerization. The LDPE powder density between 0.910 and 0.935 g/cm3 enables excellent flexibility and superior clarity along with superior impact resistance because of its short-chain branching characteristics. The combination of its properties renders LDPE powder perfect for numerous applications that need durable and processable materials.
LDPE’s unique molecular structure provides exceptional ductility, impact resistance, and elongation properties.
Resistant to acids, bases, and organic solvents, LDPE powder ensures long-term durability in harsh environments.
With a processing temperature around 160°C, LDPE is ideal for various thermoplastic molding methods.
Excellent dielectric properties make it suitable for electrical insulation in cable and wire applications.
| Catalog | Product | Particle Size | Price |
|---|---|---|---|
| PL-LDPE-A071 | LDPE Powder (30 mesh) | 30 mesh | Inquiry |
| PL-LDPE-A072 | LDPE Powder (50 mesh) | 50 mesh | Inquiry |
| PL-LDPE-A073 | LDPE Powder (100 mesh) | 100 mesh | Inquiry |
| PL-LDPE-A074 | LDPE Powder (150 mesh) | 150 mesh | Inquiry |
| PL-LDPE-A075 | LDPE Powder (200 mesh) | 200 mesh | Inquiry |
| PL-LDPE-A076 | LDPE Powder (300 mesh) | 300 mesh | Inquiry |
| PL-LDPE-A077 | LDPE Powder (500 mesh) | 500 mesh | Inquiry |
| PL-LDPE-A078 | LDPE Powder (1000 mesh) | 1000 mesh | Inquiry |
| PL-LDPE-A079 | LDPE Powder (1500 mesh) | 1500 mesh | Inquiry |
| PL-LDPE-A080 | LDPE Powder (2000 mesh) | 2000 mesh | Inquiry |
| Catalog Number | PL-MP-A0001 |
| Appearance | Powder |
| Mesh | 6.5 um |
| Sample Lot No. | A24C926EX |
| Catalog Number | PL-MP-A0002 |
| Appearance | Powder |
| Mesh | 74 um |
| Sample Lot No. | A24C914ER |
LDPE powder distinguishes itself from HDPE and LLDPE powders in key structural and performance aspects.
While LDPE’s density is lower, its molecular structure features abundant short branches that reduce crystallinity (typically 45–65%), resulting in enhanced flexibility. In contrast, HDPE’s linear chains yield high crystallinity (up to 85%) and increased strength, while LLDPE balances linearity with minimal branching for intermediate properties.
LDPE’s lower tensile strength (7–14 MPa) and lower softening point (90–100°C) are offset by its superior transparency and flexibility, making it the material of choice for applications requiring excellent formability and clarity.
Read MoreLDPE powder’s versatile properties enable its widespread use:
Packaging
Agriculture
Electrical & Cable
Medical
Consumer Goods
Construction
Essential for food wraps, cosmetic packaging, and industrial films requiring clarity and flexibility.
Used in agricultural films and greenhouse coverings for their excellent light transmittance and weather resistance.
Suitable for medical packaging and disposable equipment due to its safety and reliability.
Employed in toys, housewares, and lightweight containers, offering easy formability and resilience.
At Alfa Chemistry, we provide premium-grade LDPE powder designed to meet diverse industrial needs.
Alfa Chemistry is proud to show you successful application examples of our LDPE powders.
Below are real-world examples of applications we have provided to our customers, demonstrating how our LDPE powders have successfully solved real-world problems in a variety of industries and delivered significant business value.
A client in the coatings industry sought a reliable material for enhancing the smoothness and adhesion properties of high-performance industrial coatings. Our LDPE powder (2000 mesh) [Catalog Number PL-MP-A0001], with its ultra-fine particle size distribution and low melt index, was identified as a key additive. In their formulation trials, the powder was easily dispersed, creating a uniform coating film. Notably, the 6.5 µm powder improved the mechanical strength and flexibility of the final coating layer, while maintaining excellent UV and chemical resistance. These features made it particularly suitable for heavy-duty protective coatings in marine and chemical plant environments. The client reported significant improvements in surface finish and durability, confirming the value of our high-quality LDPE powder in demanding industrial applications.
An industrial customer specialized in rotational molding required a polymer powder with consistent flow characteristics and thermal stability. Our LDPE powder (200 mesh) [Catalog Number PL-MP-A0002] was selected due to its optimal balance of flowability and toughness. During processing, the 74 µm powder exhibited excellent sintering and fusion behavior, ensuring seamless mold coverage and minimal porosity in the final product. The fabricated tanks displayed uniform wall thickness and improved impact resistance, meeting the client’s rigorous mechanical performance standards. This robust performance validated the suitability of our LDPE Powder for rotational molding applications, particularly in the manufacture of large-capacity chemical storage tanks.
Reliable for Industrial Applications
How does the mesh size affect the properties of LDPE powder?
The mesh size directly impacts particle size distribution, flowability, and dispersion in the matrix. Finer mesh (e.g., 6.5 µm) improves surface finish and uniformity in coatings, while larger mesh sizes (e.g., 74 µm) offer better flow for rotational molding.
Is LDPE powder suitable for food-contact applications?
LDPE generally meets FDA and EU food contact regulations if processed properly. However, end-use certification depends on your processing conditions and application. Always consult relevant standards for your specific needs.
Can LDPE powder be used as a compatibilizer in blends?
Yes, LDPE powder’s flexibility and low crystallinity help enhance compatibility in blends with other polymers such as EVA or LLDPE, improving impact resistance and flexibility.
What are the storage and handling recommendations for LDPE powder?
Store LDPE powder in a cool, dry area, away from direct sunlight. Use proper PPE during handling to minimize dust inhalation. Avoid static charge accumulation, especially in fine powders.
Does LDPE powder require any specific processing conditions?
LDPE powder generally processes well at moderate temperatures (around 150–220 °C). Optimal processing depends on the application—rotational molding requires precise heating and cooling cycles to achieve uniform sintering.
Can LDPE powder be used in 3D printing?
While LDPE powder is not a mainstream 3D printing material, it has potential in powder-based processes such as powder bed fusion, where low melting temperature and flexibility might be advantageous in certain niche applications.
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