Flame Retardent Silicone Sponge Seals

Here at Advanced Seals & Gaskets Ltd we manufacture and supply many seals in the form of washers, gaskets, strips, o-rings, cords and extrusions made into bespoke profiles, all designed to prevent the ingress of air, fluid or gas.    One of our diverse range of silicone materials used in the production of seals includes Flame Retardant Silicone sponge. 

Flame retardant silicone sponge seals can be cut from sheets or continuous rolls of material of varying lengths depending on the grade and thickness required., or extruded into bespoke shapes and profiles to order.   

As each form of seal needs to be manufactured using a different process, ASG has invested heavily in various machinery meaning we can offer both high and low volume seals in virtually any shape or size.

What are Flame Retardant Silicone Sponge seals?

Flame retardant silicone sponge has all the properties of standard silicone sponge but with extra additives mixed into the formulation to create a more superior product. 

The sponge compound is chemically expanded and heat-cured to create the closed cell structure, giving the material the performance benefits of solid silicone, but in a softer form with useful properties of sponge, such as softness, flexibility and conformability.  

Flame Retardant silicone sponge seals are a device or substrate that is used to join surfaces together to either, acting as a separator or a body to prevent liquids, solids or gases from escaping or penetrating the application. 

Sponge seals can take the form of cut gaskets, strips, washers, extruded profiles and cord, which under compression, ‘hardens’ the material further to create a secure sealing property, many of which can be supplied with a choice of self-adhesives that assists with placement of the seal and to hold it in position

Flame Retardent Silicone Sponge Seals

Product Enquiry

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

    Product Specification & Key Characteristics

    • Colour: Grey, Black, White
    • Working Temperature Range: -55°C to + 200°C
    • Density: 160 - 432 kg/m2
    • Sheet size availability: 915mm x 1m or in continuous rolls
    • Thickness available: 0.8mm - 25.4mm - depending on density
    • Standards: BS6853, GM/RT 2125, LUL, NF F 16-101, UL-94 V-0, HF1

    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 Flame Retardent Silicone Sponge Seals

    Samples can be submitted for testing upon request.

    Call now for sample requests or further help.

    Why use Flame Retardant Silicone Sponge Seals?

    Flame Retardant silicone spine seals can take countless forms and profiles, manufactured using different techniques, but as they’re produced using the exact same material, they will all possess the same properties. 

    Flame retardant silicone sponge uses the same formulation of silicone sponge but offers improved mechanical properties including improved tear and tensile strength and abrasion resistance. 

    It offers excellent resistance to environmental factors resisting excessive damage caused by Ozone and general weathering, including frost where other rubber materials would crack or become brittle. 

    Flame retardant silicone sponge seals are not only suitable for use in extreme temperature applications, but also for vibration, sound and thermal insulation, cushioning and sealing.

    Key Benefits of Flame Retardant Silicone Sponge

    • Various grades/densities are available to meet different standards
    • Weathering, UV and Ozone resistance
    • Wide operating temperature range
    • Easy to cut into different parts 
    • Will hold self-adhesive and foil backings
    • More durable than standard silicone sponge

    Advantages of using Flame Retardant Silicone Sponge Seals?

    Customers often choose flame retardant silicone sponges for their sealing needs as the material offers a number of excellent characteristics and properties, including UV and ozone resistance making it suitable for internal and external applications. 

    Flame retardant silicone sponge offers a wide operating temperature range of -55°C to + 200°C, with an even higher temperature grade available upon request. 

    Its closed-cell structure offers excellent sealing for water, with low levels of compression, and also gives the material an excellent compression set resistance (its ability to return to its original shape and thickness following compression). 

    Flame retardant silicone sponge designed to offer exceptional insulation, anti-vibration, cushions and sealing even in the most unstable and harsh environments.

    Different Densities Available

    All of the densities below prevent the ingress and penetration of air, dust and water, even with some options having an open cell structure, as well as offering good resistance to weathering, UV, Ozone and ability to withstand extreme temperatures and environments, however, the density of each will offer features and benefits suited to different applications:

    Medium - excellent shape memory as well as low-stress relaxation. The superior shape memory makes this particular grade ideal for use in the manufacture of gaskets. 

    Firm - offers a higher tear resistance and superior tensile strength making it more durable and suited to sealing applications.

    Extra Firm - offers greater conformability and even pressure distribution even at high temperatures, often used in the manufacture of press pads for heat transfer machines.

    Extra Soft - an open cell structure that is highly compressible meaning it can still offer protection and sealing against dust, moisture and air.  This grade is often selected for sealing enclosures and protecting electronics from heat and shock.

    Ultra Soft Density - is highly conformable and can be manipulated into gaps of varying widths and awkward shapes, offering excellent shape memory even after long periods of time under compression.

    Have a Question about Flame Retardant Silicone Sponge Seals?

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