Double coated aluminized
Polyester Film for MLI aerospace
Our double coated aluminized polyester film is using polyethylene terephalate (PET)as base film ,deposited with a thin layer
of aluminum layer on both sides, Double aluminized polyester film has a long and proven spaceflight heritage. It is can be used
as inner mateirals in Cryogenic application and Satellie MLI blankets.
Double coated aluminium
Metallized Polyester Film is rated for a low to medium temperature range. With both sides aluminized, most of the
incident heat radiated to either surface is reflected. MLI blankets are typically constructed of several layers of double aluminized
polyester sandwiched between netting to mitigate heat transfer between a spacecraft and its surroundings. Double aluminized polyester
film is not recommended for the space-side blanket layer since it does not offer sufficient UV protection.
Double alumimized polyester film is also widely used to protect aerospace cryogenic systems against external temperatures.
Without proper insulation, cryopropellents (such as liquid oxygen or liquid hydrogen) can boil off, which is wasteful at best
and could result in failures due to over-pressurization. Metalized polyester insulation film reduces heat leaks and maintains
cryogenic fluid temperatures.
Double Aluminized polyester film is excellent for:
Inner-layer thermal insulation for spacecraft
Low to mid-range temperature environments
Cryogenic applications
Material Properties
Typical α / ? value: 3.5
Operating temperature: -251°C to 121°C
Thickness range: 6.4 μm - 127 μm
Surface resistivity: ≤ 1.0 Ω/sq
