Food Grade Closed-Cell Silicone Sponge Supplier and Manufacturer
At Advanced Materials, we manufacture and supply high‑quality closed‑cell silicone sponge products designed for use in food and drink, and pharmaceutical environments. Our food grade sponge meets stringent international safety standards and is engineered for excellent performance in hygienic processing applications.
FDA-approved closed cell silicone sponge
Our closed-cell food grade sponge (FGS) material has been manufactured and trusted for over 20 years, proven in industries where hygiene, temperature resistance and compliance are critical.
If you’re specifying silicone rubber for food contact applications, Advanced Materials supplies UK-manufactured, regulatory compliant food grade silicone rubber extrusions with full traceability. To discuss your project or request certified samples, contact our experienced team today.
Key Properties of Food Grade Sponge
Our closed cell silicone sponge:
- is compliant with FDA 21 CFR 177.2600, BfR XV and EC 1935 2004 silicone regulations, making them ideal for use in food processing machinery
- can be extruded as strips, cord and basic profile shapes, offering greater flexibility and versatility to our customers
- provides excellent vibration damping, cushioning and long-term durability
- can be compressed to make seals, even against liquids or rain. The materials exhibit a low degree of moisture absorption, even after prolonged periods of immersion
- is customisable, available in white or pale pastel pigmentation
- is available in minimum runs (ten metres)
- is manufactured in the UK, at our Littlehampton facility, under ISO 9001 and ISO 14001 and Good Manufacturing Practice controls, with full traceability.
For a detailed overview, refer to our comparison table to review food grade sponge grades, including FGS20 and FGS40:
Watch how our food grade sponge compresses and recovers, demonstrating its durability and sealing performance in real applications.
Temperature Resistance of Closed Cell Silicone Sponge
FGS20 silicone sponge offers a standard operating temperature range from-60°C to +200°C, making it suitable for a wide variety of applications. For environments requiring higher heat resistance, a heat stabiliser can be added to produce HTFGS20, which performs up to +250°C.
Metal Detectable Food Grade Sponge Option
A metal detectable version of our FGS product range, which is still FDA compliant, is also available, frequently supplied in a blue colour for food processing lines. Our metal detectable food grade sponge is manufactured with a specialist additive that gives it magnetic properties. This ensures that, if a fragment enters a food line, it can be quickly identified by magnets or standard detection equipment, reducing contamination risks.
This clip shows how magnets interact with the sponge, making detection straightforward and reliable.
Long-Term Stability of Food Grade Sponge
Our fully post-cured sponge is tested for ageing resistance and retains its properties in storage. With a typical shelf life of 25 years when stored correctly, it reduces the risk of material expiry and gives you confidence in forward planning and long-term supply.
“Working closely with Advanced Materials has been an invaluable partnership for us. Across several projects over the years, they've consistently proven their reliability and commitment. On numerous occasions, they've not only stepped in promptly when our previous suppliers fell short but also went above and beyond in facilitating custom product developments. Their flexibility in meeting lead times, coupled with their dedication to customer service, has continually exceeded our expectations.”
-Procurement Controller, Leading UK Electronics Manufacturing Company
Typical Applications
Food grade silicone sponge is chosen across industries where hygiene, durability and compliance are vital. Typical applications include:
Food production & processing
- Gaskets and seals on production lines
- Food processing equipment
- Packaging line cushioning
- Vending machine seals for food and beverages
Machinery & equipment
- Protective padding, cushioning and vibration damping
- Insulation and weatherproofing in hygienic environments
- Simple extrusions (cord, strip and profiles) tailored to requirements
- Enclosure seals for device manufacturing
Appliances & pharma
- Door seals for appliances with wide temperature range
- Pharmaceutical production equipment
- Lighting and electrical housing seals where food-safe materials are required
- Its resistance to UV, ozone and weathering also makes food grade sponge suitable for outdoor or exposed environments where long-term stability is essential.
A Trusted Closed‑Cell Silicone Sponge UK Supplier
Advanced Materials is your trusted UK supplier of closed‑cell silicone sponge. Whether you need food grade sponge for gaskets, insulation or sealing applications, we can help.
We’re proud members of Made in Britain, recognising our commitment to high-quality UK manufacturing and supporting a trusted, local supply chain.
“When customers specify food grade silicone sponge, compliance is only part of the requirement. They also need confidence that every batch will perform consistently in demanding environments. At Advanced Materials, we manufacture in the UK under ISO 9001:2015 and ISO 14001:2015, with full traceability to give engineers and buyers the assurance they need.”
– Villeater Gladman, Technical Director at Advanced Materials
With over 20 years of proven supply, you can depend on us for fast, accurate quotations within an hour. Send us your requirements via our contact form today.
Closed cell silicone sponge: Frequently asked Questions
What is a closed‑cell silicone sponge used for in food processing?
A closed-cell silicone sponge is used to create hygienic seals, gaskets and cushioning in machinery exposed to washdowns, temperature swings and vibration.
Is your food grade sponge FDA and BfR compliant?
All grades of our food grade sponge are compliant with FDA 21 CFR 177.2600 and suitable for direct food contact. Only FGS10, FGS20 and FGS40 are additionally compliant with BfR XV requirements.
Request a Quote
sales@amsilicones.co.uk or complete our online enquiry form