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.

Details

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 @ 70C

(158F)

ASTM D 1056

Test D @ 100C

(212F)

< 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°)

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