Medium Flame Retardant 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. 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.

KEY FEATURES

Flame retardant
Excellent for seals and gaskets
High compressibility
Low compression set
UV/Ozone resistant

SPECIFICATIONS

UL 94 V-0
AMS3195

MATERIAL AVAILABILITY

Available in – Continuous rolls or cut sheets
Thickness available (in) – 0.0625 to 0.500
Typical roll lengths (ft) – 25 to 100
Typical roll widths (in) – 36
Surface finishing – Fabric impression finish, both sides
Cell structure – Closed cell
Color – Grey, black, color matching available

TEMPERATURE RANGE

-103°F to +450°F (-75°C to 232°C)

PHYSICAL PROPERTIES

Properties
Compression deflection (25%)	psi (kPa)	6-14 (41-96)	ASTM D1056
Density < 0.25” thick	pcf (kg/m3)	43 (690) max.	ASTM D1056
Density ≥ 0.25” thick	pcf (kg/m3)	34 (550) max.	ASTM D1056
Compression set (22h, 100°C)	%	60 max.	ASTM D1056
Tensile strength	psi (kPa)	100 (690)	ASTM D412
Flammability	–	V-0 rating	UL 94

More information found on the full specification sheet. Go To Datasheets ➜

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.

AMS3195

AMS3195 is an aerospace material specification is from SAE International Group.
The specification covers silicone rubber sponge in the form of sheet, strip, extrusions, and molded shapes.
Our medium density silicone sponge sheet is in accordance with the physical property requirements of AMS3195 test standard.
This product has been used typically for general applications requiring closed-cell, medium sponge rubber that will be flexible from -103 to +401 °F (-75 to +205 °C), but usage is not limited to such applications. Compression set may be high at the higher temperature.