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Closed Cell Silicone Sponge
This medium firm closed cell flame retardant silicone sponge passed 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.
It is typically a grey or black color and is rated UL 94 V-0. The material is produced with a fabric impression on both sides, is flexible and offers excellent compression set resistance.
In Stock with Immediate Availability
KEY FEATURES
- Flame retardant
- Excellent for seals and gaskets
- High compressibility
- Low compression set
- UV/Ozone resistant
STANDARDS
- 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 |
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SILICONE SPONGE SHEETING GRADES
- Soft Sponge
- Medium Sponge (AMS3195)
- Firm Sponge (AMS3196)
- Extra Firm Sponge
- Fire Retardant (UL 94 HB)
- Fire Retardant (UL 94 V-0)
ACCREDITATION’S
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.
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