Product Specification & Key Characteristics
- Colours Available: Black, White, Red Oxide, Blue
- Thickness Range: 1mm – 45mm
- Density: 200kg/m³ – 530kg/m³
- Temperature Range: -60°C to +230°C
- Resistances: Ozone, oxidation, UV, corona discharge, cosmic radiation, ionising radiation, and general weathering
- Finishes: Plain, self-adhesive backed, laminated with foils or specialist tapes
All silicone sponge strips are manufactured in-house using advanced cutting machinery, including band saws, log cutters, presses, and kiss-cut machines for high-volume runs. This ensures we can meet tight tolerances, fast lead times, and competitive pricing across both small-batch and large-scale production.
Silicone Sponge Strip – Premium Sealing, Insulation & Gasketing Solutions
At Advanced Seals & Gaskets Ltd, we are one of the UK’s leading manufacturers and suppliers of silicone sponge strips, also known as silicone foam tapes, silicone gasket strips, or gasket tapes. With decades of expertise in precision cutting and conversion, we provide high-performance sealing solutions for industries ranging from aerospace and automotive to food processing, electronics, and HVAC systems.
Silicone sponge is an extremely versatile elastomer that combines the durability and temperature resistance of solid silicone with the softness and flexibility of a sponge material. Available in thicknesses from 1mm up to 45mm and in any width starting from 4mm, our strips can be produced in continuous rolls or pre-cut sections, with options for plain finish, self-adhesive backing, or lamination with other materials.
Product Enquiry
For information on Silicone Sponge Strip – Premium Sealing, Insulation & Gasketing Solutions please complete the following quick enquiry or call us on +44(0)1384 252555.
What Are Silicone Sponge Strips?
Silicone sponge strips are precision-cut lengths of closed-cell silicone sponge designed to function as seals, gaskets, or cushioning components. They can be supplied in continuous coils for flexibility in production, or in pre-cut lengths to suit specific installation requirements.
The closed-cell structure of silicone sponge provides excellent sealing performance even at low compression levels, making it ideal for preventing the ingress of air, dust, water, and other contaminants. Its low toxicity, CFC-free composition, and environmental resistance also make it a sustainable and reliable choice.
Silicone sponge strips are commonly used in applications where soft, conformable materials are required, offering better flexibility than solid silicone while still retaining excellent mechanical strength, compression recovery, and long-term durability.
Why Use Silicone Sponge Strip?
Silicone sponge strips combine the mechanical advantages of solid silicone with the resilience of a sponge structure, offering a number of unique benefits:
- Excellent Compression Recovery – Returns to original shape after repeated compression, ideal for sealing and cushioning.
- Wide Operating Temperature Range – Performs consistently from -60°C to +230°C, making it suitable for extreme hot and cold environments.
- Weather & UV Resistance – Withstands prolonged exposure to outdoor conditions without becoming brittle or cracked.
- Closed-Cell Sealing Performance – Prevents liquid and gas ingress at low compression levels, making it ideal for gasketing.
- Soft & Conformable – Fills uneven gaps and seals against irregular surfaces.
- Durability – Outlasts many other elastomers, reducing maintenance and replacement costs.
Applications of Silicone Sponge Strips
Silicone sponge strips are used across a wide variety of industries thanks to their strength, resilience, and adaptability. Typical applications include:
- HVAC Systems – Weather seals and vibration damping in heating, ventilation, and cooling units.
- Electronics & Lighting – Seals for enclosures requiring dust- and moisture-proofing.
- Automotive & Aerospace – Cushioning, vibration isolation, and thermal seals in engines, cabins, and equipment housings.
- Food & Beverage Processing – Hygienic, non-toxic sealing in FDA-grade silicone sponge materials.
- Construction & Industrial – Gap-filling and joint sealing for outdoor enclosures and machinery.
- Packaging & Transport – Protective seals, pads, and vibration dampers to safeguard sensitive equipment.
Advantages of Silicone Sponge Strips
Using silicone sponge strips from Advanced Seals & Gaskets ensures:
- Resistance to UV, ozone, and harsh weather conditions
- Long-lasting performance in indoor and outdoor applications
- Excellent thermal insulation and vibration dampening properties
- Wide temperature stability (-60°C to +230°C)
- Available in multiple grades and colours
- Fully customisable thickness, width, and finish
- Fast turnaround from our in-house UK production facility
Different Grades of Silicone Sponge Strip
To meet the demands of specialised industries, we supply several grades of silicone sponge strips:
- Flame Retardant Silicone Sponge – For safety-critical environments.
- Food Quality Silicone Sponge – FDA-compliant for hygienic processing and sealing.
- High Recovery Silicone Sponge – Excellent resilience after repeated compression.
- High Temperature Silicone Sponge – Enhanced performance at elevated temperatures.
- Fluorosilicone Sponge – Outstanding resistance to fuels, oils, and solvents.
- Thermally Conductive Silicone Sponge – For heat transfer applications in electronics and industrial systems.
Why Choose Advanced Seals & Gaskets?
As one of the UK’s largest and most experienced producers of custom silicone sponge strips, we combine state-of-the-art manufacturing with decades of expertise to deliver high-performance products at competitive prices.
- In-house production ensures quality control from start to finish.
- Customisation options for width, thickness, and finishes.
- Fast turnaround times on both small and bulk orders.
- Full technical support and data sheets available on request.
Enquire About Silicone Sponge Strips
If you need silicone sponge strips for sealing, gasketing, or insulation applications, our expert team can advise on the best grade, finish, and size for your project.
Please contact us using the form below or by calling us on +44(0)1384 252555.