LD-SF800-F Silicone Foam Gasket is a highly versatile, middle and upper firmness cellular silicone that offers the lightness of a foam, with the enhanced sealing capabilities of a traditional sponge rubber. It is used to seal and protect various outdoor communication, electronics, and lighting enclosures, while providing protection against wind driven rain and fire. The material is also used to reduce shock or isolate vibration.
Die Cutting Silicone Foam Gasket
1. Excellent memory and low stress relaxation reduces maintenance costs associated with gasket failures due to compression set and softening.
2. Resistance to ultraviolet light, ozone, extreme temperatures, and flame enables consist performance in all environments.
3. Compact cell structure and unique formulation provides enhanced sealing performance to resist penetration of fine particles and wind-driven rain.
4. Excellent electric insulation
5. Steady-going storage.
Technical Data
Property
Test Method
Typical Value
Color
Black/Gray/Orange
Thickness, Millimeter (mm)
Tolerance
1-25mm
Density (kg/m3)
ASTM D 1056
500 kg/m3
Compression Force
Deflection, (Kpa)
Force measureed@25%
Deflection
ASTM D 1056
110.0（±15）Kpa
Compression Set % max
ASTM D 1056
Test @ 70℃ / 158 ℉
＜1
ASTM D 1056
Test @ 100℃ / 212 ℉
＜4
Tensile Strength, (kPa)
ASTM 412
≥300
Elongation, %
ASTM 412
≥80
Water Absorption
Internal:24h@25℃
＜1.5%
Dielectric Constant
ASTM D 150
1.42
Volume Resistivity,
Ohm-mm
ASTM D 257
1013
Low Temperature Flex at 67 ℉ (-55℃)
ASTM C 518
PASS
Recommended use
Temperature ℉ (℃)
SAE J-2236
-67 to 500
(-55 to 260)
Recommended Intermittent
High Temperature Use ℉ (℃)
482(250)
Toxic Gas Emissions Rating
SMP-800-C
PASS
Flammability
UL 94
V0
Remark
*LD-SF800-F cellular silicone is available: black, gray and orange, width is available from 460mm to 960mm, thickness is available from 1mm to 25mm.*Storage Time: 5-8 years in a normal temperature and humidity environment.
*Data for design engineer spec. reference only. Engineers are reminded to test the material in application.
Application
Die Cut Silicone Foam Gasket Application
1. Environmental seals to protect against penetration of dust, moisture, air, or light within outdoor enclosures such as lighting fixtures, High Voltage Alternating Current units, and electronic cabinets.
2. Vibration isolators in electronic components and transportation vehicles.
3. Shock absorbing cushions and gaskets.
