What is DOW 722 LDPE

DOW 722 LDPE is a general-purpose low density polyethylene ldpe plastic material launched by Dow. It has excellent elongation at break and processing adaptability, and is suitable for various scenarios such as medical packaging, food films, and heat sealing coatings. Its pure homopolymer structure and controllable melting behavior provide end customers with stable performance and environmentally compliant ldpe pellets solution.

01 | Three core advantages: high ductility, cleanliness level, and multi-processing adaptability

High elongation at break and tensile properties

The elongation at break of dow 722 ldpe reaches 500%, and the yield strength is 8.27 MPa, endowing the finished product with excellent ductility and pressure-bearing capacity. It is particularly suitable for film products that require bending, impact or encapsulation and sealing.

Clean formula without additives

The material is a pure base material without release agents or antistatic properties, meeting the requirements for food contact and medical contact. It is particularly suitable for the production of packaging materials that require high cleanliness or subsequent modification and customization.

It has strong compatibility with multiple processing methods

Dow 722 ldpe supports injection molding, extrusion coating and blown film processing. Its melt index is 8.0g /10min and the heat sealing temperature is approximately 105° C. It can achieve stable processing under different equipment and process conditions.

02 | Typical application expansion: Multi-faceted value from food packaging to catheter coating

▶ Food packaging films and heat-sealing films

It features high flexibility and a moderate sealing temperature, making it suitable for heat-sealing packaging such as frozen food bags, vacuum sealing films, and dairy product sealing layers.

▶ Medical device protective films and coatings

The cleanliness grade of Dow 722 is suitable for use as packaging film or laminating layer for medical catheters and syringes, ensuring that the material maintains chemical stability in a sterilized environment.

▶ Coating grade extruded layer

Its excellent fluidity and surface properties make it suitable for coating on substrates such as cardboard and aluminum foil, and it can be used as a sealing and barrier layer in hoses, paper cups or composite packaging materials.

▶ Flexible industrial inner lining bags

In industrial chemical packaging, the tensile and impact strength of Dow 722 can be used for powder and liquid inner bags or protective films to enhance sealing and leak-proof performance.

03 | Processing suggestions and usage tips

Heat sealing and film blowing process: It is recommended that the temperature of the heat sealing area be 100-120°C and the temperature of the film blowing die be 190-210°C to ensure uniform sealing and stable film bubbles.

Thickness control suggestion: Suitable for blown film or coated products within the range of 25-80μm;

Co-extrusion adaptability with other materials: It can be used in combination with EVA, mLLDPE, paper-based materials, etc., to achieve a composite packaging structure.

Clean scene recommendation: In fields such as food, medical care, and electronics, it is necessary to avoid co-extruding materials containing additives to maintain purity.

04 | Comparative analysis of core physical property indicators

05 | Balance sustainability and application innovation

Dow 722 LDPE ensures physical properties while also taking into account the sustainable development goals of enterprises:

Reduce thick film waste: High stretchability, which can moderately reduce the film thickness and save raw materials;

Support green modified design: As a clean base material, it is convenient to add environmentally friendly additives such as antibacterial and anti-ultraviolet agents;

High-efficiency and low-energy consumption processing: High MI supports low-temperature extrusion, reducing energy consumption;

Great potential for reuse: The homopolymer structure is pure, which is conducive to subsequent recycling and reuse or re-blown film application.

06 | Selected real application feedback

Case 1: After a certain food packaging enterprise adopted Dow 722 to replace the original film material, the heat sealing performance improved by 12%, and it maintained good toughness under freezing conditions, reducing the sealing damage rate.

Case 2: A medical consumables factory applied it to catheter envelopes. After gamma sterilization, the product did not undergo physical deformation and was approved by the FDA for packaging material filing.

07 | Why choose us as the supplier of DOW LDPE materials?

✔ Quick delivery in stock, supporting both full package and sample modes

✔ Provide TDS/MSDS/ formula consultation and assist in selection and implementation

✔ Covering all types of PE grades, it supports all application scenarios including packaging, blown film and coating

If you need to send Dow 722 LDPE technical data, quotations or samples, please contact us through the contact information on the right!

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