BF-2000 | NS-220 | Ultra Soft Silicone Foam | National Silicone

NS-220 Ultra Soft Silicone Foam

Cellular Silicone Foam

This ultra soft silicone foam is a light, highly compressible foam that is perfect for applications including, sealing, vibration isolation, electronics and transportation. It is a direct comparable to Rogers Bisco® BF-2000 cellular material.

Most importantly, it offers UL 94 V-0 flame resistance and it’s low softness protects your seals while using less force. Your maintenance cost will be lower as gasket failures due to softening and compression set and  can be avoided

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  • Highly adaptable to various applications and environments
  • Enhanced sealing capabilities
  • The softness protects your seals while using less force
  • Low closure force
  • Excellent compressibility
  • UV/Ozone resistant





Available in – Continuous rolls or cut sheets
Thickness available (in) – 0.0625 to 0.500
Roll lengths available (ft) – *16.4 – 65.6, depending on thickness
Typical roll widths (in) – *18
Surface finishing – Smooth finish, both sides
Cell structure – Open cell
Color – Grey, Black, *White, *Red
*Subject to MOQ

* Download roll size guide



-67°F to +392°F  (-55°C to 200°C)



Compression deflection (25%) psi (kPa) 1.5 (10) ASTM D1056
Density pcf (kg/m3) 14 (230) max. ASTM D1056
Compression set (22h, 100°C) % < 5 ASTM D1056
Tensile strength psi (kPa) 17 (120) ASTM D412
Flammability V-0 & HF -1 rating UL 94

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National Silicone 88-NS220 Ultra Soft Foam

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More Information

UL 94 V-0

  • UL 94 V-0 is a safety and flammability standard by Underwriters Laboratories.
  • This material is compliant with the UL 94 V-0 test standard for flammability.
  • The vertical burn test measures the self-extinguishing time of a vertically oriented polymer specimen. The test evaluates both the burning and afterglow times and dripping of the burning test specimen.
  • In order to be rated UL 94 V-0, the burning must stop within 10 seconds, no flame propagation or dripping.


21 CFR 177.2600

  • 21 CFR 177.2600 is a specification from the U.S. Code of Federal Regulations (CFR) used by the Food and Drug Administration (FDA).
  • This material is compliant with the requirements of 21 CFR 177.2600.
  • The specification covers rubber articles intended for repeated use and may be safely used in producing, manufacturing, packing, processing, preparing, treating, packaging, transporting, or holding food, subject to the provisions of this section.
  • Meaning this material is generally recognized as safe, and can be used in applications where repeated use in contact with food occurs.




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We support our customers, and prospects throughout the purchase journey. Our team is made up of experienced professionals and highly trained engineers who will help with material selection, sampling, testing, and any application support you might need to accomplish your goals.



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