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7075 Aluminum Foil (Light Tight)

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Commodity: Alloys Material: Aluminum Form: Foil (Light Tight) Grade: 7075 Composition: Al 90/Zn 5.5/Mg 2.5/Cu 1.5/Si 0.5 UNS Number: A97075 Coating: Uncoated Opacity: Light Tight Surface Finish: Standard
7075 Aluminum Foil (Light Tight) is a high-strength aluminum-zinc-magnesium-copper alloy foil designed for exceptional tensile performance, fatigue resistance, and complete light impermeability through a flawless, pinhole-free surface. This unique combination provides both mechanical robustness and total optical shielding, making it indispensable for enclosing and protecting sensitive components in demanding environments. Aerospace, defense, and precision instrumentation sectors employ it for hermetic light-proof laminates, high-strength reflective barriers, and optically sealed housings. Specific applications include optical component encapsulation in avionics, light-blocking thermal control layers in satellite systems, and secure protective wraps for defense-grade sensors. In research and innovation, 7075 light-tight foil supports the development of hybrid structural-barrier materials, controlled-environment enclosures for photochemical experiments, and ultra-reliable thermal-optical protection systems. Its balance of strength, corrosion resistance, and absolute light exclusion ensures critical value in advanced scientific and high-performance industrial domains.
Starting at $383.00 each
No Minimum order Approx. 2 weeks leadtime Free technical support *Free delivery worldwide

Material Properties

Mechanical Properties
Element Value
Hardness - Brinell 150
Elongation at break( % ) 5-8%
Shear strength( MPa ) 331
Tensile strength( MPa ) 510-538
Electrical Properties
Element Value
Electrical resistivity( µOhmcm ) 5.15
Temperature coefficient( K⁻¹ ) -
Thermal Properties
Element Value
Melting point( C ) 447-635
Thermal conductivity( W m⁻¹ K⁻¹ ) 130@20°C
Coefficient of thermal expansion( x10⁻⁶ K⁻¹ ) 24.4@20-250°C
Physical Properties
Element Value
Density( gcm⁻³ ) 2.8
each

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Available Configurations

Properties common to all products in this list

Commodity: Alloys Material: Aluminum Form: Foil (Light Tight) Grade: 7075 Composition: Al 90/Zn 5.5/Mg 2.5/Cu 1.5/Si 0.5 UNS Number: A97075 Coating: Uncoated Opacity: Light Tight Surface Finish: Standard

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