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Molded fiberglass
and duct insulation for thermal and acoustic protection. |
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Molded
Fiberglass Insulation Blankets are used for a wide range of applications requiring
excellent thermal and/or acoustical protection. Molded blankets are available
in three resin or binder types Phenolic and Phenolic with a water repellent
additive are used for temperatures to 450°F (232°C); Silicone is used
for temperatures to 700°F (371°C). The uncured resin in the fiberglass
is cured in a heated press to the required thickness and density.
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Removable duct insulation is currently used on a variety of military and commercial
aircraft applications. Insulation is molded in half sections to a desired density,
thickness or shape; then covered with films, coated fabrics, or metal skins.
By combining molded materials with various protective facings, Hi-Temp Insulation
offers removable duct insulation for temperatures to 2600°F (1427°C).
This process provides a very durable assemble that will stand up to continuous
vibration and frequent handling. |
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A variety of attachment methods are used, depending on the insulation covering,
to allow the duct insulation assemblies to be easily installed and removed.
When covering the insulation with film, the assembly is fabricated allowing
the covering to overlap the split line. The overlap is then adhered, or heat-sealed,
to the mating portion. For coated fabrics, pressure sensitive tapes provide
a secure and easy attachment. When the insulation is protected with a metal
covering, capstans can be installed allowing the half sections to be laced on. |
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The insulation is molded into a variety of sizes, shapes, thickness and densities.
This versatility allows the insulation to custom fit odd-shaped parts, special
configurations, and applications where precise fit is critical. The type of
insulation that is used is dependent upon the environment and the temperature
of the duct during operation. |
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Molded duct insulation is available with a number of covering materials including
films, coated fabrics, and metals. A cover adds stability to the insulation
while providing various methods for attachment. Temperature and environment
are the critical elements that determine if a cover is required and which type
to use. |
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