Silicone Foam - NS-100-SFT • National Silicone

Ns-100 soft Grade foam

Silicone Foam

This medium-soft silicone foam is cast from liquid silicone and is designed to provide long term sealing, cushioning and vibration isolation performance. Most importantly, it offers UL 94 V-0 flame resistance, FDA compliance for repeated use in contact with food and has excellent low stress relaxation properties which helps protect against compression set. It is a direct comparable to Rogers Bisco® HT 870 cellular material.

UL 94 V-0

  • This material passes 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, and no dipping.

FDA REGULATION 21 cfr 177.2600

  • This material passes the requirements of FDA regulation 21 CFR 177.2600 that covers indirect food additives. Meaning it is generally recognized as a safe material and is intended for repeated use in contact with food.

material details

Available in – Continuous rolls or cut sheets
Thickness available (in) – 1/32  to 1/2
Roll lengths available (ft) – 20 to 60
Typical roll widths (in) – 36 (for 1/32″ to 1/8″)
Typical roll widths (in) – 19.7 (for 3/16″ and above)
Surface finishing – Smooth finish, both sides
Cell structure – Closed cell
Color – Black, grey, red

thickness TOLERANCES

1/32 Inch (0.79mm): +0.015/-0.004 (+0.381/-0.102)
1/16 Inch (1.6 mm): ±0.02 (±0.508)
3/32 Inch (2.39 mm): ±0.02 (±0.508)
1/8 Inch (3.18 mm): ±0.025 (±0.635)
3/16 Inch (4.78 mm): ±0.025 (±0.635)
1/4 Inch (6.35 mm): ±0.03 (±0.762)
3/8 Inch (9.53 mm): ±0.045 (±1.143)
1/2 Inch (12.7 mm): ±0.05 (±1.270)
* Tolerances are typical values obtained from sample testing

Material PROPERTIES

Properties
Compression deflection (25%) psi (kPa) 3-6 (20-40) typical ASTM D1056
Density pcf (kg/m3) 22 (350) max. ASTM D1056
Compression set (22h, 100°C) % < 5 ASTM D1056
Tensile strength psi (kPa) 29 (200) ASTM D412
Flammability – V-0 rating UL 94

Full Datasheet

For Sales

Email: sales@nationalsilicone.com
Phone: 888-814-6599
or
Contact: Brian Lindley
Phone: 714-203-4780
Email: brian.lindley@nationalsilicone.com