GA25 Chemically Cross-Linked Polyethylene Foam Sheets
Advanced Seals & Gaskets Ltd are proud to be one of the UK’s leading suppliers of polyethylene foam sheets. We have a vast storage facility enabling us to stock polyethylene rolls, blocks and sheets in a range of grades and densities, one of which includes chemically cross-linked polyethylene (PE) foam.
Chemically cross-linked polyethylene foam is manufactured in 3 forms: firstly, in polyethylene foam sheets without laminations, secondly, in sheet form made up of laminated sheets to a thickness using multiple sheets and finally, in continuous rolls in various lengths depending on thickness. The foam is created from raw materials through a specific process that transforms them into high-quality polyethylene foam products.
Chemically cross-linked polyethylene foam sheets are manufactured in specific sizes which vary depending upon the material thickness; however, our onsite conversion facilities allow us to split material down into non-standard thicknesses, laminate them to create more depth, cut non-standard sheets from rolls and even join sheets together. Sheets can also be glued to form custom thicknesses or shapes.
All of our chemically cross-linked polyethylene foam sheets can be supplied with a choice of finishes, including plain or coated on one or both faces with a range of self-adhesives, foils and even layers of other materials. Foam sheets can also be supplied in a variety of colours to suit different applications, with a range available to meet customer preferences.
What is a Chemically Cross-Linked Polyethylene Foam Sheet?
Chemically crosslinked polyethylene foam, or XLPE, is just one of many types of polyethylene foams ASG can offer. This grade is closed-cell foam, meaning it is waterproof, durable, and mould-resistant. It is manufactured using raw low-density polyethylene, which is heated up, causing it to foam before it is extruded, creating a ‘honeycomb’ type cell structure consisting of numerous closed cells that contribute to the foam's water resistance and rigidity.
Chemically cross-linked PE foam can be manufactured (extruded) as sheets or ‘planks’ and in various shapes to suit different applications, with or without laminations, all of which can be split down, laminated to achieve greater thicknesses, laminated to other materials to create composite materials and supplied in a plain or self-adhesive backed finish.
Product Enquiry
For information on GA25 Chemically Cross-Linked Polyethylene Foam Sheets please complete the following quick enquiry or call us on +44(0)1384 252555.
Product Specification & Key Characteristics
- grey or white
- Densities available: 25kg/m3 - 200kg/m3
- Operating Temperature: -60ºC to 80ºC
- Thickness: a range of thicknesses available depending on grade, but can be split or laminated to order, available as a sheet or a continuous roll
Why use Chemically Cross-Linked Polyethylene Foam Sheets
Chemically cross-linked polyethylene foam is a very tough, lightweight and long-lasting material. As a versatile closed-cell foam, it is suitable for a wide range of uses, including insulation, packaging, and custom projects. As polyethene is manufactured by extrusion, it has a rougher outer ‘skin’ that adds to its strength and makes it water-resistant and resistant to damage from air or sunlight.
XLPE foams can be used for insulation because they offer low thermal conductivity, providing excellent protection against heat and sound. They also function as impact-damping foam, offering shock absorption for packaging and safety applications. For use with electronics, an anti-static compound can also be added.
The Advantages of Using Chemically Cross-Linked Polyethylene Foam Sheets
XLPE (Chemically cross-linked polyethylene) offers several desirable properties: it’s a very tough, lightweight, and long-lasting material. The sheets are manufactured using extrusion methods, which create a rougher outer ‘skin' that enhances their durability and makes them resistant to water or sunlight damage.
Key advantages and applications of XLPE foam sheets (polyethylene foam sheets) include:
- Low thermal transmission makes them excellent for insulation.
- Shock absorption is ideal for packaging.
- Buoyant, making them suitable for aquatic and floatation applications.
- Closed-cell foam is waterproof, providing complete protection against water in demanding environments.
- Mildew-proof and resistant to mould growth, ensuring durability in moist or microbial-prone areas.
- Resistant to grease and many chemicals, making them suitable for industrial environments.
- Commonly used in gym mats due to their durability and shock absorption.
- Used for protecting wood during shipping and delivery, offering cushioning and impact protection.
If the sheets will be used with electronics, an anti-static compound can also be added.
Chemically cross-linked polyethylene sheets are easy to cut and convert into a range of other products, including pads, strips, coils, gaskets, washers, and even fabrications, for use in a range of industries such as construction, HVAC, and packaging, to name a few.
Benefits of using Chemically Cross-Linked Polyethylene Foam
- Thermal and acoustic insulation
- Durability
- Resistance to water, air or sunlight
- Resistance to chemicals and fluids
- Used for shock absorption or buoyancy
- Lightweight
- Cutting and conversion are easy
Different Types Available
Having a network of manufacturers and suppliers allows ASG to offer a full range of polyethylene materials, many of which 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:
- Alveo
- Anti static
- Ethafoam
- Eva foam
- Flame retardant
- Plastazote
- Stratocell
Have a Question about GA25 Chemically Cross-Linked Polyethylene Foam Sheets?
Comparison with Other Foams
When selecting the right foam for your application, it’s essential to understand the differences between closed-cell foam and other types, such as open-cell foam and polyurethane foam. Closed-cell polyethylene foam stands out for its rigid structure and superior water resistance, making it ideal for environments where moisture protection is essential. Unlike open-cell foam, which is more flexible and allows air and moisture to pass through, closed-cell foam is non-absorbent and provides excellent thermal insulation. Polyurethane foam, while commonly used for cushioning, tends to absorb water and is less durable in harsh conditions compared to closed-cell polyethylene foam. Thanks to its robust cell structure, closed-cell polyethylene foam offers outstanding chemical resistance, making it suitable for applications where exposure to oils, solvents, or other chemicals is a concern. Its combination of durability, insulation, and water resistance makes it a preferred choice over other foam types for demanding, long-lasting applications.
Applications of Foam Sheets
Closed-cell polyethylene foam sheets are incredibly versatile and find use across a wide range of industries and applications. Their lightweight and non-toxic nature makes them ideal for protective packaging, ensuring products are shielded from impact and vibration during transit. In the construction sector, these foam sheets are valued for their thermal insulation properties, helping to maintain energy efficiency in buildings. They are also commonly used to create crash pads, kneeling pads, and floatation devices, thanks to their buoyancy and non-absorbent characteristics. The healthcare, manufacturing, and sports industries benefit from the impact-damping and cushioning provided by closed-cell polyethene foam. Whether you need reliable insulation, durable packaging, or safe padding, these foam sheets offer a practical solution that combines strength, flexibility, and ease of use.
Fast Delivery and Availability
We understand that timely delivery is crucial for your projects. That’s why we offer a comprehensive range of closed-cell foam sheets in various densities and thicknesses, all available for fast delivery. Our extensive stock ensures that you can find the right foam material for your needs, whether you require a specific thickness, density, or sheet size. With a streamlined ordering process and next-day delivery options, we make it easy to get the foam sheets you need, when you need them. Our commitment to fast delivery and wide availability means you can rely on us to keep your operations running smoothly and meet tight deadlines without compromise.
Flame Retardant Properties
Safety is a top priority in many industries, and that’s why we offer closed-cell foams, including polyethylene foam, with flame-retardant properties. These specialised foams are manufactured to meet stringent fire safety standards, making them suitable for use in construction, transportation, and other environments where fire resistance is essential. Flame-retardant closed-cell foams provide an added layer of protection, helping to slow the spread of flames and reduce fire risks. Our range includes rigorously tested, certified materials, ensuring you have access to reliable, high-performance solutions for your safety-critical applications.
Conclusion and Recommendation
Closed-cell foam, particularly closed-cell polyethylene foam, is a highly versatile and durable material that excels in thermal insulation, chemical resistance, and water resistance. Its wide range of applications—from protective packaging to construction—demonstrates its adaptability and effectiveness. Available in various densities and thicknesses, our foam sheets can be tailored to meet the specific requirements of your project, whether you need enhanced fire safety, durability, or insulation. We recommend closed-cell polyethylene foam for any application where long-lasting performance and protection are essential. With our extensive stock, fast delivery, and expert support, you can trust us to supply the right foam materials for your needs. Contact us today to discuss your requirements and discover how our closed-cell foam solutions can benefit your business.
Please contact us using the form below or by calling us on +44(0)1384 252555.





















