Medium Cellular Silicone
IOTA-HT-800
HT-800
is a highly versatile, medium firmness 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 isolatevibration.
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
and unique formulation provides enhanced sealing performance to resist
penetration of fine particles and wind-driven rain.
Applications
Environmental seals to
protect against penetration of dust, moisture, air, or light within outdoor
enclosures such as lighting fixtures, HVAC units, and electronic cabinet
Vibration isolators
in electronic components
and transportation vehicles
Shock absorbing
cushions and gaskets
Installation
Available with a
pressure-sensitive adhesive on one or two sides to allow easy application to a
variety of surfaces.
|
IOTA-HT-800
|
|
Property
|
Test Method
|
Typical Value
|
|
PHYSICAL
|
|
Color
|
|
Black, Gray & Red*
|
|
Thickness, mm
(inches)
|
|
0.80 – 12.70 (1/32 – 1/2)
|
|
Standard Width, mm (inches)
|
|
914 (36)
|
|
Density, kg/m3 (lb./ft3)
|
ASTM D 1056
|
352 (22)
|
|
Compression Force
Deflection, kPa (psi)
|
Force measured @
25% Deflection
ASTM D 1056
|
62.0
(9.0)
|
|
Compression Set,
% max.
|
ASTM D 1056
Test D @ 70C
(158F)
ASTM D 1056
Test D @ 100C
(212F)
|
< 1
< 5
|
|
Tensile Strength, kPa (psi)
|
ASTM D 412
|
310 (45)
|
|
Elongation, %
|
ASTM D 412
|
80
|
|
FLAMMABILITY & OUTGASSING
|
|
Flame Resistance
|
UL 94
|
Listed V-0 and HF-1
|
|
Flame Spread Index (Ls)
|
ASTM E 162
|
< 25
|
|
Smoke Density (Ds )
|
ASTM E 662
Tested @ 4.0 minutes
Tested @ 1.5 minutes
|
< 50
< 20
|
|
Toxic Gas Emissions
Rating
|
SMP-800C
|
Pass
|
|
Environmental
Properties
|
|
Water Absorption
|
Internal: 24 hrs @ room
temp.
|
1.40 %
|
|
Electrical & Thermal Properties
|
|
Dielectric Constant
|
ASTM D 150
|
1.42
|
|
Dielectric Strength
|
ASTM D 149, kV/m
(Volts/mil)
|
3583(91)
|
|
Dry Arc Resistance
|
ASTM D 495, Seconds
|
92
|
|
Volume Resistivity, Ohm –
cm (ohm-in)
|
ASTM D 257
|
1014 (3.94 x 1013 )
|
|
Thermal Conductivity,
w/m oK (BTU in/hr/ft2 /℉)
|
ASTM C 518
|
0.09 (0.63)
|
|
Temperature Resistance
|
|
Low Temperature Flex at
-55 C (-67℉)
|
ASTM D 1056
|
Pass
|
|
Recommended Use
Temperature,
C (℉)
|
Internal
|
-55° to 200° (-67° to 392°)
|
|
|
|
|
|
|
