| Appearance: | Liquid |
|---|---|
| Usage: | Oil Drilling Auxiliary Agent, Water Treatment Chemicals, Rubber Auxiliary Agents, Plastic Auxiliary Agents, Coating Auxiliary Agents, Textile Auxiliary Agents, Paper Chemicals, Surfactants, Leather Auxiliary Agents, Electronics Chemicals |
| Color: | White |
| Trademark: | iota |
| Origin: | Bengbu Anhui China |
| Samples: |
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Suppliers with verified business licenses
Audited Supplier IOTA-HT-840 is an extra-firm grade silicone foam that offers improved durability and sealing. It is used to seal and protect various outdoor communication, lighting, and electronic enclosures from small dust particles, wind driven rain, and fire. It offers a higher tear and tensile strength than our lighter grade foams. IOTA Silicones are available in various thicknesses and manufactured in roll form to allow fabricators to easily convert the material to the proper dimensions.
Extra Firm Cellular Silicone IOTA-HT-840
IOTA-HT-840 is an extra-firm grade silicone foam that offers improved durability and sealing. It is used to seal and protect various outdoor communication, lighting, and electronic enclosures from small dust particles, wind driven rain, and fire. It offers a higher tear and tensile strength than our lighter grade foams. IOTA Silicones are available in various
thicknesses and manufactured in roll form to allow fabricators to easily convert the material to the proper dimensions.
Features and Benefits
Good memory and low stress relaxation reduces maintenance costs associated with gasket failures due to compression set and softening.
Resistance to ultraviolet light, ozone, extreme temperatures, and flame enables consistent performance in all environments.
Compact cell structure provides improved sealing performance.
Available through distribution sites throughout North America, Europe, and Asia.
Applications
Environmental seals to protect against penetration of dust, moisture, air, or light within outdoor enclosures such as lighting fixtures, HVAC units, and electronic cabinets.
Enclosures requiring a more durable, high closure force gasket.
Press pads requiring greater conformability and even pressure distribution at high temperatures.
Installation
Available with a pressure-sensitive adhesive on one or two sides to allow easy application to a variety of surfaces.
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IOTA-HT-840 |
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Property |
Test Method |
Typical Value |
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PHYSICAL |
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Color |
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Gray |
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Thickness, mm (inches) |
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0.80 - 3.18 (0.031 - 0.25) |
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Standard Width, mm (inches) |
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449 (28) |
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Density, kg/m3 (lb./ft3) |
ASTM D 1056 |
432 (27) |
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Compression Force Deflection, kPa (psi) |
Force measured @ 25% Deflection ASTM D 1056 |
151.7 (22) |
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Compression Set, % max. |
ASTM D 1056 Test D @ 70ºC (158ºF) ASTM D 1056 Test D @ 100ºC (212ºF) |
< 1
< 5 |
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Tensile Strength, kPa (psi) |
ASTM D 412 |
414 (60) |
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Elongation, % |
ASTM D 412 |
55 |
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FLAMMABILITY & OUTGASSING |
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Flame Resistance |
UL 94 |
Listed V-0 and HF-1 |
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Flame Spread Index (Ls) |
ASTM E 162 |
< 25 |
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Smoke Density (Ds ) |
ASTM E 662 Tested @ 4.0 minutes Tested @ 1.5 minutes |
< 50 < 20 |
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Toxic Gas Emissions Rating |
SMP-800C |
Pass |
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Environmental Properties |
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Water Absorption |
Internal: 24 hrs @ room temp. |
0.20 % |
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UV Resistance |
SAE J - 1960 |
No Degradation |
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Ozone Effect Rating |
ASTM D 1171 |
0 (No Cracks) |
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Corrosion Resistance |
AMS - 3568 |
Pass |
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Electrical & Thermal Properties |
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Dielectric Constant |
ASTM D 150 |
1.58 |
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Dielectric Strength |
ASTM D 149, Volts/mil |
95 |
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Dry Arc Resistance |
ASTM D 495, Seconds |
98 |
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Volume Resistivity, Ohm - cm |
ASTM D 257 |
1014 |
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Thermal Conductivity, w/m oK (BTU in/hr/ft2 /ºF) |
ASTM C 518 |
0.12 (0.84) |
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Temperature Resistance |
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Low Temperature Flex at -55ºC (-67ºF) |
ASTM D 1056 |
Pass |
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Recommended Use Temperature, ºC (ºF) |
Internal |
-55° to 200° (-67° to 392°) |
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Suppliers with verified business licenses
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