What is Polyethylene LLDPE 318BJ

Today, with the continuous upgrading of flexible packaging materials, LLDPE 318BJ has become a popular choice to meet the triple requirements of optical performance, strength and processing efficiency. As a film-grade and thermally stable Linear Low-Density Polyethylene, its outstanding performance and wide range of applications bring higher value to packaging manufacturers.

01 | Material highlights: Balanced performance, adaptable to multiple scenario requirements

Polyethylene LLDPE 318BJ uses butene as the copolymer monomer and does not contain TNPP (Tris nonylphenyl phosphite), and has excellent puncture resistance and tear strength. Its tensile elongation at break is as high as 710%, which not only ensures the flexibility of the film but also enhances its durability. Meanwhile, its excellent stress retention and elastic recovery capabilities make it perform more stably when making high-performance stretch films and embossed films.

In addition, 318BJ has the following characteristics:

  ・Extremely low haze (2.1%) and high gloss (91%) enhance the transparency of the product's appearance

  ・It features excellent dimensional stability and low warpage tendency, making it suitable for cast film forming and fine film processing

  ・The Vicat softening temperature can reach up to 102°C, enhancing the structural stability in a thermal environment

02 | Application fields: Covering daily use, industrial and food packaging

Thanks to its comprehensive mechanical properties and optical performance, Polyethylene LLDPE 318BJ is particularly suitable for the following fields:

  ・Cling film: It combines high transparency and strong toughness, and is suitable for household and commercial food packaging

  ・Cast film: Suitable for the core base material of composite film layer structures

  ・Embossed film: It plays a significant role in roll packaging that requires soft texture and toughness

  ・Stretch film: It can withstand tension while maintaining resilience, making it suitable for industrial transportation protection purposes

03 | Processing advantages: Parallel casting and extrusion, enhancing production efficiency

This product is suitable for Cast casting and traditional extrusion molding. It features excellent melt strength and thermal stability, and can maintain uniform film thickness and surface finish in high-speed cast casting production lines. Meanwhile, its melt index is 2.8g /10min (at 190°C, 2.16kg), which takes into account both fluidity and support force, meeting the refined process requirements of film manufacturers.

04 | Polyethylene LLDPE 318BJ Technical Properties Overview

05 | Why choose the LLDPE 318BJ we supply?

As a trader specializing in virgin plastic pellets, the LLDPE 318BJ we provide not only has stable quality, but also has the following advantages:

  ・Flexible supply: Supports both small-batch samples and large-batch orders, and is suitable for various project cycles

  ・Technical data support: We can provide technical data sheets and processing suggestions in both Chinese and English

  ・Rapid response service: Both spot and futures can be connected, reducing waiting time

  ・Traceable origin and batch: Strictly control the consistency of channels and quality

We understand that customers not only need good materials, but also stable and reliable partners.

06 | How to determine whether LLDPE 318BJ is suitable for you?

If you are currently facing the following problems:

  ・Puncture or tearing problems occurred during the processing of the membrane material

  ・The product needs to enhance transparency and luster but does not wish to sacrifice mechanical strength

  ・Search for food contact grade materials that do not contain TNPP to meet export demands

Then, LLDPE 318BJ might just be your ideal choice.

07 | Obtain the sample and technical parameter table

If you wish to learn more about the samples, component formulas or technical specifications of LLDPE 318BJ, you can contact us directly through the contact information on the right side of the page. We can provide product data sheets (in both Chinese and English), sample delivery arrangements and processing consultation services.

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