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    HDPE/COEX bottles

    HDPE/COEX bottles

    About HDPE/COEX Plastic

    About HDPE Plastic

    About HDPE Plastic

    HDPE (High-Density Polyethylene) is one of the premium plastic materials widely used in specialized packaging, especially in the fields of agriculture, veterinary, aquaculture, and livestock farming. With its high mechanical strength, excellent moisture resistance, and superior chemical durability, HDPE is an ideal choice for packaging liquids, fertilizers, biological products, medicines, or corrosive chemicals.

    Key advantages of HDPE packaging:

    • High impact resistance – not easily cracked or broken during transportation and field use.
    • Excellent chemical resistance, especially suitable for fertilizers, pesticides, veterinary medicines, and microbial solutions.
    • Lightweight – easy to transport and package.
    • Compatible with various cap types: seal caps, vented caps, measuring caps, and more.
    • It can be integrated with COEX (multi-layer) technology to improve the preservation capability of sensitive formulations.
    COEX Plastic Bottles

    COEX (Co-extrusion) Plastic Bottles

    COEX (Co-extrusion) plastic bottles, also known as multi-layer bottles, are manufactured using multi-layer extrusion technology. Among these layers, EVOH or PA functions as an outstanding barrier to gas and moisture. Thanks to their multi-layer structure, COEX bottles offer optimal protection against oxygen, humidity, and other environmental elements—making them especially suitable for products that are highly sensitive to oxidation or require long-term preservation.

    Key Advantages:

    • Excellent gas and moisture barrier – extends product shelf life
    • High chemical resistance – ideal for pesticides, solvents, and industrial chemicals
    • Protects fragrance and active ingredients – maintains formulation stability
    HDPE Vz. COEX Plastic Bottles

    COMPARISON: HDPE BOTTLES VS. COEX BOTTLES

    ((COEX bottles from P H L are made from HDPE combined with an inner EVOH or PA barrier layer.))

    Criteria HDPE Bottle COEX Bottle (HDPE + EVOH/PA)
    Material Single-layer HDPE Multi-layer: Outer HDPE with inner EVOH/PA barrier
    Gas Barrier Moderate Excellent – effectively blocks gas, moisture, and oxygen
    Protection of Contents Good Outstanding – maintains scent, color, and product purity
    Chemical Resistance Good with most solvents and chemicals Excellent – suitable for strong chemicals and pesticides
    Shelf Life Average – for standard products Long-term – ideal for sensitive or long-shelf-life products
    Cost More economical Higher due to complex multi-layer technology
    Typical Applications Fertilizers, standard pesticides, probiotics Premium pesticides, strong solvents, oxidation-sensitive products

    Product Applications

    Agricultural Packaging

    Agricultural Packaging:

    • Bottles for liquid fertilizers
    • Containers for biological products (microbial preparations)
    • Packaging for pesticides (herbicides, insecticides)
    • Bottles for plant nutrient solutions
    Veterinary Packaging

    Veterinary Packaging:

    • Bottles for veterinary liquid medicines
    • Disinfectant solutions for animal hygiene
    • Containers for vaccines or biological veterinary products
    • Packaging for deworming and treatment medicines for animals
    Aquaculture Packaging

    Aquaculture Packaging:

    • Bottles for aquaculture medicines and biological products
    • Packaging for disinfectant solutions and biological saline
    • Bottles for liquid feed supplements for aquatic animals
    Livestock Packaging

    Livestock Packaging:

    • Bottles for supplements and vitamins for livestock and poultry
    • Disinfectant solutions for cleaning animal pens
    • Containers for probiotics and biological preparations to improve animal health

    At P H L

    Quality & Certifications

    Quality & Certifications

    P H L’s motto is: “Protecting Quality, Inspiring Trust.” We strictly adhere to international standards such as ISO 9001:2015 for quality management systems and ISO 14001:2015 for environmental management throughout our production process. Every product is rigorously controlled for durability, sealing, chemical resistance, and safety standards before reaching customers.

    Innovation & Technology

    Innovation & Technology

    P H L continuously updates and implements the latest machinery and advanced technologies to enhance product quality and efficiency. Notably, we specialize in COEX technology (multi-layer co-extrusion), producing packaging with optimal product protection, alongside modern automated production lines that ensure precision and consistency in every detail.

    Trendy Designs

    Trendy Designs

    P H L places great emphasis on design trends, continuously updating and developing the latest packaging styles to create visually appealing products that meet modern consumer preferences. We understand that packaging is not just a container but the first point of contact that impresses and attracts customers.

    Exclusive Design & Manufacturing

    Creating Your Unique Mark

    P H L consults and collaborates closely with customers from packaging concept development to mass production, creating exclusive designs unique to each brand. We are committed to providing full support so that customers can build distinctive marks and enhance brand value in the marketplace.

    Customer Service & Support

    Customer Service & Support

    P H L is dedicated to supporting and partnering with customers in every aspect, from technical consultation and product selection to attentive after-sales service. We value long-term partnerships and commit to delivering a professional, efficient, and friendly customer experience.

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