Silicone Sponge Gaskets

Advanced Seals & Gaskets Ltd are recognised as one of the UK’s largest producers and suppliers of gaskets, cut using a range of foams, sponges, rubber, plastics and specialist papers. One such material is Silicone Sponge, available in various grades, colours and thicknesses which can be converted into silicone sponge gaskets.

Silicone sponge materials are manufactured in roll form for thicknesses up to 12.5mm and in sheet form for thicknesses above this and up to 45mm, with a skin finish on both faces from which gaskets can be pressed or cut.

Our Silicone Sponge gaskets are produced in-house, meaning we can manufacture bespoke items to match our customers samples or drawings in any quantity, from simple rectangular picture frame gaskets, through to complex shapes with cut outs or notches. Whether it’s a small sample batch or a multi-thousand run, we have a machine designed to quickly and accurately produce perfectly formed gaskets every time.

Our onsite facilities house a range of state of the art conversion machinery including a range of presses, kiss cut machines and an oscillating knife meaning we can supply individually cut washers, or those kiss-cut for quick and easy use.

Silicone Sponge Gasket

Product Enquiry

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






    Key Characteristics of Silicone Sponge

    • Colour: Black, White, Red Oxide, Blue
    • Thicknesses available: 1mm to 45mm
    • Density: 200KG/M³ - 530KG/M³
    • Resistances: Ozone, Oxidation, Ultraviolet light,Corona discharge, Cosmic radiation, Ionising, radiation, and Weathering
    • Temperature Range: -60°C - 230°C

    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 Gaskets

    Samples can be submitted for testing upon request.

    Call now for sample requests or further help.

    What Are Silicone Sponge Gaskets?

    Silicone Sponge gaskets can take the form of a strip or pad but are generally an intricately cut shaped piece of material placed between two surfaces to create a low pressure seal preventing the leakage of liquids or gas and to seal against the intrusion of dust and debris.

    Silicone sponge is an elastomeric material, 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, from which gaskets can be cut and used in place of its solid rubber variant, where a softer, conformable material is needed, designed to offer exceptional sealing, cushioning, vibration insulation and insulation properties.

    Manufacturing gaskets in-house means we can supply them in a plain or self adhesive backed finish and even laminate multiple types of material together to create bespoke and unique variations.

    Why Use Silicone Sponge Gaskets?

    Gaskets manufactured using Silicone sponge offer the 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 compress (bounce back to its original shape and thickness)- perfect for the creation of gaskets which are used in sealing, cushioning and vibration dampening applications.

    Silicone sponge gaskets have a wide operating temperature range of around -60°C to 260°C, 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 Gaskets

    Gaskets manufactured using silicone sponge offer a number of desirable features and properties, used in many applications, throughout a range of industries, due its durable and rugged nature.

    Silicone sponge is a closed cell material which means it is water resistant and can be used to create gaskets which act as moisture tight seals, cushioning, gap filling and anti-vibration.

    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 a great choice for gaskets for use as seals in outdoor applications such as within HVAC units, light and electrical enclosures when a tight water seal is vital.

    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.