Medium Density Silicone Sponge

UL 94 V-0 Closed Cell Silicone Sponge Rubber

This medium firm closed cell flame retardant silicone sponge is typically a grey or black color and is rated UL 94 V-0 (more info below). Passing the vertical burn test, which is more stringent than horizontal test (HB), is seen as a critical safety standard for applications where flame and fire protection is of the highest importance. The material is produced with a fabric impression on both sides, is flexible and offers excellent compression set resistance.

AMS3195

• This medium frim, fire retardant, silicone sponge sheet is in accordance with the physical property requirements of AMS3195 test standard.
  
• The specification covers sheets, rolls, strips, extrusions and molded shapes. Typically used for general purpose applications and remains flexible from -103 to +401^oF (-75 to +205^oC).

UL 94 V-0

• 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.

Material Details

Available in – Continuous rolls or cut sheets
Thickness available (in) – 1/16  to 1/2
Typical roll lengths (ft) – 25 to 100
Typical roll widths (in) – 36 & 48
Surface finishing – Fabric impression finish, both sides
Cell structure – Closed cell
Color – Grey, black, others available

Thickness Tolerances

1/16 Inch (1.6 mm) – 0.05″ (1.30 mm) min / 0.07″ (1.90 mm) max
3/32 Inch (2.4 mm) – 0.08″ (2.10 mm) min / 0.10″ (2.70 mm) max
1/8 Inch (3.2 mm) – 0.11″ (2.80 mm) min / 0.14″ (3.60 mm) max
3/16 Inch (4.8 mm) – 0.17″ (4.40 mm) min / 0.20″ (5.20 mm) max
1/4 Inch (6.4 mm) – 0.23″ (6.00 mm) min / 0.26″ (6.80 mm) max
3/8 Inch (9.5 mm) – 0.35″ (9.00 mm) min / 0.39″ (10.00 mm) max
1/2 Inch (12.7 mm) – 0.47″ (12.20 mm) min / 0.52″ (13.20 mm) max
* Tolerances are typical values obtained from sample testing

Material Properties

Go To Datasheets

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