Silicone Sponge Sheets

Silicone Sponge sheets are just one of many products available here at ASG, with a multitude of materials available from our vast catalogue, including a range of silicone materials in various grades, colours and thicknesses.

Silicone sponge materials are manufactured in roll form of 10 meters in length by 1 meter wide for thicknesses up to 15mm which can be cut down into sheets of 1 meter or 2 meter lengths, and are also manufactured in sheet form for greater thicknesses up to 45mm, with a skin finish on both faces.

Silicone sponge can be supplied in full sheets or as converted finish parts, as our onsite facilities house a range of state of the art conversion machinery including a range of presses, CNC machines, slitting machines and log cutters, enabling us to supply Silicone Sponge as various parts including cut strip, pads, washers and gaskets for use in a multitude of applications, all of which can be supplied covered in one of our many foils or self adhesive tapes.

Silicone Sponge Sheets

Product Enquiry

For information on Silicone Sponge Sheets please complete the following quick enquiry or call us on +44(0)1384 252555.






    Product Specification & Key Characteristics

    • Colour: Anthracite
    • Density: <90KG/M³
    • Fire Propagation Index: <12
    • Operating Temperature: -30°C to 100ºC
    • Thickness: 1mm – 100mm (can be laminated for greater thickness)

    Full technical data can be supplied upon request,
    or downloaded from our online portal.

    Help and guidance

    If you would like to speak to a representative to discuss your specific application or requirements please call our sales office direct on 01384 469100, alternatively you can send an E-mail. Simply click on the link and forward us your details along with your question and we will contact you immediately.

    Samples - Technical Silicone Sponge Sheets

    Samples can be submitted for testing upon request.

    Call now for sample requests or further help.

    What Are Silicone Sponge Sheets?

    Sheets are silicone sponge can be supplied at 1 meter by 1 meter or 2 meters by 1 meter in size, in thicknesses up to 45mm. Silicone sponge is an elastomeric material, this compound is expanded during the heat-curing stage, which in return creates the closed cell structured sponge, which is low toxicity and CFC free which makes it an environmentally friendly material.

    Silicone Sponge is a highly versatile material, which can be used in place of its solid rubber variant, where a softer, conformable material is needed, designed so that the sheets and the components cut from them offer exceptional sealing, cushioning, vibration insulation and insulation properties.

    Why Use Silicone Sponge Sheets?

    Silicone Sponge sheets are often preferred where smaller amounts of material are needed. They can be used to cover large surfaces such as work surfaces, to line holding containers, and to cut into very large seals or gaskets.

    Silicone sponge sheets offer superior mechanical properties and many of the performance benefits of solid silicone, but in a softer and more conformable form, as it has excellent resistance to compression (bounce back to its original shape and thickness).

    Silicone sponge has a wide operating temperature range of around -60C to 260C, resistance to UV and ozone - therefore suitable for outdoor applications and in comparison to other sponge materials offer more strength and durability. The closed cell structure of this material means it will make excellent sealing components for the prevention of leaks or ingress of air, dus and water, even with fairly low levels of compression.

    The Advantages of Using Silicone Sponge Sheets

    There are a number of advantages to using silicone sponge sheets in many applications and throughout a range of industries due its vast number of excellent properties and durable and rugged nature.

    Silicone sponge is a closed cell material which means it is water resistant and can be used to create moisture tight seals. Some of the other excellent properties includes the material wide operating temperature range of -60°C to 230°C, environmental resistant properties meaning it can withstand Ozone, UV and corona damage along with general weathering from rain, wind and frost etc where many other materials and rubbers can become brittle and crack.

    These excellent features make silicone sponge sheets a great choice for creating sealing components in outdoor applications such as within HVAC units, light and electrical enclosures when a tight water seal is vital. Silicone sponge can be used in thermal insulation applications as well as for sealing and vibration dampening.

    The material is manufactured in sheets in a range of standard thicknesses, but can be split down to non standard ones upon request and can be cut down and converted into a range of finishing usable products including strips, pads, gaskets and washers.

    Benefits Of Using Silicone Sponge

    • UV & Ozone resistant
    • Strong and durable
    • Available in a variety of Grades
    • Excellent recovery following compression
    • Closed cell
    • Excellent sealing properties

    Different Grades of Silicone Sponge Available

    • Flame Retardant Silicone Sponge
    • Food Quality
    • High Recovery Silicone SPonge
    • High Temperature Silicone SPonge
    • Fluorosilicone Sponge
    • Thermally Conductive Silicone Sponge
    Have a Question about Acoustic Foam Gaskets?

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