Aluminum Foil

Goodfellow's high-purity aluminum foil is a critical enabling material engineered for the precision demands of high-performance industries, combining lightweight form with exceptional thermal and electrical conductivity, chemical resistance, and material purity. Manufactured in purity levels ranging from 99% to ultra-pure 99.9999% (6N), and offered in a broad range of temper conditions from fully annealed to hard rolled, our aluminum foil is available in gauges as thin as 0.0004 mm up to 25 mm and widths from 10 mm to 1000 mm. This versatility supports a wide array of technical applications, including advanced battery current collectors, high-voltage capacitor foils, electromagnetic shielding, cryogenic reflectors, vacuum-compatible linings, and precision substrates for spectroscopy, SEM, and XPS. The foil’s naturally passivated surface provides excellent corrosion resistance, while its low outgassing and optional ultra-low uranium and thorium content (<1 ppb) make it ideal for cleanroom, aerospace, quantum, and nuclear environments where background contamination and material reactivity must be tightly controlled. Whether used in the fabrication of nanostructured anodic aluminum oxide (AAO) templates, laser-textured thermal control layers, flexible electronics, or high-sensitivity laboratory fixtures, this foil maintains exceptional performance under mechanical, thermal, and environmental stress. Additional options such as double-side polishing, light-tight (pin-hole free) finishes, and cleanroom packaging ensure readiness for integration into mission-critical assemblies. Each batch is traceable, quality-certified, and prepared to meet the stringent expectations of professionals working at the forefront of materials science, energy storage, semiconductor technology, aerospace systems, and research instrumentation, making high-purity aluminum foil not just a raw material but a foundation for innovation in the most demanding fields.