Flame Retardant Plastazote Foam Sheets

Plastazote Foam Sheets: Flame Retardant

Various grades of Polyethylene foam are stocked and converted by Advanced Seals & Gaskets Ltd, using a network of suppliers enabling us to offer sheets (including flame retardant plastazote foam sheets) and products cut from them using various types of Polyethylene (PE) foam, including Flame Retardant Plastazote, in densities ranging from 15kg to 70kg (referred to as LD15FR, LD33FR, LD45FR, LD60FR or LD70FR respectively).

Plastazote is part of the azote range, which also includes other high-performance closed-cell foams such as Evazote and Supazote, all manufactured by Zotefoams using advanced nitrogen-blown technology.

This material is a closed-cell foam manufactured using advanced nitrogen-blown technology, resulting in a cross-linked polyethylene foam which is incredibly lightweight and free from chemical agents, enabling customers to use this material in highly sensitive environments where flame and heat resistance are crucial. Flame Retardant Plastazote PE foam is manufactured and stocked in block form. Using in-house state-of-the-art machinery, we can split it to produce flame-retardant plastazote foam sheets in various thicknesses, starting from as little as 1.5mm, and in lengths of 1 or 2 meters. Standard sheet size options are available, including 200cm x 100cm, to suit a variety of applications.

Our on-site laminating service enables us to supply flame-retardant plastazote foam sheets with a choice of finishes, including plain or coated on one or both faces with a range of self-adhesives, foils or even laminated to other materials.

Product Enquiry

For information on Plastazote Foam Sheets: Flame Retardant please complete the following quick enquiry or call us on +44(0)1384 252555.






    Characteristics Of Plastazote Foam

    • Colours: Black and white as standard
    • Density: 15kg - 70kg
    • Cell Structure: closed cell
    • Temperature Range: -70℃ - +105℃
    • Resistances: highly resistant to oils, solvents, acids, alkalis, heat and flame

    Plastazote foam is highly regarded in the industry for its durability and performance. Complete technical data for our flame-retardant plastazote foam sheets can be supplied upon request or downloaded from our online portal.

    What Are Flame Retardant Plastazote Foam Sheets?

    Flame Retardant Plastazote foams (used to manufacture our FR grade plastazote foam sheets) are a cross-linked, closed-cell polyethene material manufactured from crude oil. Nitrogen is blown into the material, which is then expanded, giving the cellular structure. Plastazote is a type of cell foam known for its unique properties, including its nitrogen-blown closed-cell structure, which provides excellent resistance to impact, chemicals, and water. Flame Retardant Plastazote is produced using the same compound as standard Plastazote, but with the addition of flame-retardant additives.

    When the plastazote foam is compressed, each nitrogen-filled cell acts like a squashed balloon, causing the foam to bounce back to its original shape. The closed-cell structure of plastazote makes it impenetrable to air and moisture, preventing liquids from passing through or being absorbed, making it non-absorbent and water-resistant. This makes it an excellent choice for sealing and gasket component production.

    Flame Retardant Plastazote foam can be cut down into finished products, but is often taken in sheet form as it gives the customer and end user the flexibility to be able to cut their own strips, gaskets, washers, etc, out as and when they are required or for when larger pieces of material are required to cover greater surface areas. Closed-cell foam and plastazote sheets are available in various thicknesses and can be easily cut to size for different applications.

    The manufacturing process involves expanding polyethylene with nitrogen gas, resulting in a foam sheet with excellent resistance to chemicals and environmental factors.

    Additionally, the foam wipes clean easily and offers high chemical resistance, making it suitable for demanding environments.

    Why Use Flame Retardant Plastazote Foam Sheets?

    Customers use sheets of Flame Retardant plastazote PE foam because they offer all the excellent properties of standard plastazote, but are formulated with flame-retardant additives mixed into the compound, often used as an alternative to more expensive materials such as EPDM or Neoprene sponge.

    To ensure you select the right closed-cell foam for your specific application, consult with experts who can guide you based on your project needs.

    Plastazote foams can be easily split from blocks or ‘buns’; therefore, our on-site facilities can produce flame-retardant plastazote foam sheets in bespoke widths and lengths, with 2-meter by 1-meter sizes being the standard. Flame-retardant plastazote offers excellent compression after compression and impact, and resistance to a range of chemicals, solvents, acids, alkalies, some oils, heat, and flame, making it suitable for many applications. Flame-retardant plastazote foam is used in protective sportswear, to line helmets, and in gym mats, among other applications, demonstrating its versatility. It is also suitable for swimming pools due to its buoyancy and water-resistance.

    All Plastazote materials are lightweight and free of chemical agents; therefore, the gaskets are safe to use in many ‘clean’ applications, such as food, pharmaceutical, and science.

    Flame-retardant plastazote foam sheets and components cut from them can be used to fill gaps and irregularities between uneven surfaces, provide a solution to unwanted rattles, noise, and vibrations, and seal against air, gas, dust and liquids. They can also be used to cushion moving parts, reducing friction and damage to components and equipment.

    To find Plastazote foam sheets for your needs, contact our team or visit our website for more information.

    Benefits Of Using Flame Retardant Plastazote Foam

    • Flame-retardant plastazote foam sheets are lightweight & durable
    • Excellent shock absorption
    • Water repellent and buoyant
    • Excellent chemical, oils, acids, alkalis and solvent resistance
    • Good thermal insulation
    • Non-toxic and low odour
    • Plastazote foam sheets are Flame and heat-resistant
    • Available with adhesive backing for easy installation
    • UV-resistant, making it suitable for outdoor use

    Advantages Of Using Flame Retardant Plastazote Foam Sheets

    Using Flame Retardant Plastazote foam offers users countless advantages, and therefore, the material is widely utilised across numerous industries and applications.

    Flame-retardant Plastazote is a thermoplastic polyethene foam that can be vacuum-formed or used to create thermoformed parts for custom applications, making it ideal for industries requiring precise shaping and durability.

    As the plastazote foam sheets are produced in-house, we can make them in bespoke sizes to meet our customers' requirements. Flame Retardant Plastazote foam is an artificial material, designed to suit a range of requirements and is available in a choice of densities.

    Flame-retardant plastazote foams are odourless, lightweight, buoyant, non-toxic and offer resistance to many oils, solvents, acids, alkalis, heat and flame. Its closed-cell surface and structure prevent the absorption of liquids, making it easy to keep clean and weatherproof, as well as UV-stable.

    Flame Retardant Plastazote foams are usually the preferred choice for the production of seals or components which require excellent recovery from repetitive impact. Flame-retardant plastazote products offer excellent thermal properties, including high levels of vibration and shock absorption, as well as heat and flame resistance, for use within the automotive, construction, and aviation industries.

    Different Grades of Polyethylene Foam

    Having a network of manufacturers and suppliers allows ASG to offer a full range of polyethylene materials, many of which are part of the azote range of closed-cell foams and are readily available from stock for a quick turnaround. Below is just a selection of some of our popular polyethylene material types we can offer:

    • Polyethylene (Block foam)
    • Anti static
    • Ethafoam
    • Eva foam
    • Flame retardant
    • Chemically cross-linked
    • Low-Density (LD) Plastazote (densities from 15kg to 70kg)
    • High-Density (HD) Plastazote (densities from 30kg to 130kg)
    • Stratocell

    Have a Question about Acoustic Foam Gaskets?

    Applications of Flame Retardant Plastazote Foam Sheets

    Flame-retardant Plastazote foam sheets are highly valued across various industries for their unique combination of safety, durability, and versatility. Thanks to their closed-cell polyethylene foam structure and nitrogen-filled cells, these foam sheets provide exceptional protection and resilience in demanding environments. In the aerospace and automotive sectors, they are commonly used for protective packaging of sensitive components, ensuring that fragile items remain secure during transport and storage. The closed-cell structure also makes them an excellent choice for thermal insulation, helping maintain temperature stability in construction and industrial applications.

    Beyond industrial uses, flame-retardant Plastazote foam is integral to the manufacturing of safety equipment. Its lightweight yet robust nature makes it ideal for producing protective helmets, body protection gear, and flotation devices, all of which benefit from the foam’s buoyancy and impact absorption. The foam’s water- and chemical-resistance further extends its use to sports equipment, medical devices, and even costume-making. With such a wide range of applications, it’s clear why flame-retardant Plastazote foam sheets are the preferred solution for industries requiring reliable, high-performance materials.

    Safety and Handling of Flame Retardant Plastazote Foam

    When working with flame-retardant Plastazote foam sheets, it’s essential to prioritise safety to protect users and maintain product integrity. Always wear appropriate protective gear, such as gloves and safety glasses, when cutting or shaping the foam to prevent accidental injury. Since the foam may come into contact with harsh chemicals during certain applications, it’s advisable to handle it in well-ventilated areas and avoid prolonged exposure to any chemical agents.

    Proper storage is also essential—keep foam sheets in a cool, dry place away from direct sunlight and heat sources to maintain their performance characteristics. In environments with a risk of fire, ensure flame-retardant foam is kept away from open flames and that fire extinguishing equipment is readily accessible. Always follow the manufacturer’s guidelines for handling, usage, and disposal to maximise the safety and longevity of the foam.

    Environmental Considerations

    Flame-retardant Plastazote foam sheets are designed with environmental responsibility in mind. Manufactured from non-toxic polyethylene, these foam sheets are safe for both users and the environment. The production process begins with crude oil, which is refined and processed into polyethylene before being expanded with nitrogen gas to create the foam’s signature closed-cell structure. This structure not only provides excellent thermal insulation and chemical resistance but also contributes to the foam’s long lifespan and reduced environmental impact.

    Thanks to their durability, UV and water resistance, and flame-retardant properties, flame-retardant Plastazote foam sheets are ideal for outdoor and long-term applications, minimising the need for frequent replacements and reducing waste. Additionally, these foam sheets are recyclable—users are encouraged to consult local recycling facilities for appropriate disposal methods. By choosing flame-retardant Plastazote foam, industries benefit from a material that combines high performance with environmental sustainability.

    Storage and Transportation

    To preserve the quality and performance of flame-retardant Plastazote foam sheets, proper storage and transportation practices are essential. Store foam sheets in a dry, calm environment, shielded from direct sunlight and extreme temperatures, to prevent degradation. Avoid placing the foam near harsh chemicals or heat sources, and never expose it to open flames or sparks.

    When transporting foam sheets, ensure they are securely packaged with protective coverings such as plastic wrap or sturdy cardboard boxes to prevent physical damage. Clearly label all packages as “flame retardant” and handle them in accordance with local safety regulations and guidelines. By following these best practices, you can maintain the integrity of your foam sheets and ensure they arrive at their destination in optimal condition, ready for use in a wide range of applications.

    Have a Question about Acoustic Foam Gaskets?

    Please contact us using the form below or by calling us on +44(0)1384 252555.