Indium sheet and foil are widely used where softness, ductility, low melting temperature, and reliable surface conformity are required. Typical applications include thermal interfaces, cryogenic and vacuum sealing, low-temperature bonding, semiconductor assemblies, and research applications.
MetalsTek supplies high-purity indium sheet and foil from 99.99% to 99.9999%, with custom thicknesses down to 0.05 mm. Custom dimensions, strips, discs, rings, and drawing-based parts are available for both prototype and batch production.
Indium is extremely soft, ductile, and prone to adhesion during processing. These characteristics become increasingly important when manufacturing ultra-thin foil and precision-cut parts.
MetalsTek manufactures indium foil down to 0.05 mm (50 µm) and supports custom dimensions and drawing-based parts. For demanding batch orders, dedicated tooling can be developed where required to improve dimensional repeatability, edge condition, and handling consistency.
* 0.05 mm Minimum Thickness
* Custom Dimensions
* Dedicated Tooling Available
* Batch Production Capability
Six application areas where high-purity indium foil, sheet, and custom-cut parts deliver practical engineering value.
Soft indium foil conforms to microscopic surface irregularities and helps reduce thermal contact resistance between heat sources and cooling hardware. It is used between power modules, CPUs, LEDs, vacuum components, and heat sinks where reliable heat transfer, low clamping force, and clean installation are important.
Indium remains ductile at very low temperatures and can form dependable seals against polished metal, glass, or ceramic surfaces. Custom foils, strips, rings, and gaskets are used in cryogenic instruments, vacuum chambers, superconducting systems, sensors, and laboratory assemblies requiring low-leakage performance.
High-purity indium sheet and foil support precision electronic and semiconductor assemblies that require controlled thickness, clean surfaces, and reliable conformity. Typical uses include die attach, package sealing, sensor integration, optical components, test fixtures, and specialty devices where contamination control and dimensional repeatability matter.
Indium’s low melting point and excellent wetting behavior make it useful for low-temperature soldering, dissimilar-material joining, and bonding temperature-sensitive components. Foil preforms can be custom cut to simplify placement, improve solder-volume control, and support repeatable assembly in electronics, optics, and research equipment.
Indium foil and sheet can serve as source material for thermal evaporation and other thin-film research processes. Purity, dimensions, surface condition, and packaging can be specified for deposition systems used in semiconductor, optical, photovoltaic, display, and materials-development applications.
MetalsTek supplies custom-cut indium sheets, discs, strips, rings, and drawing-based parts for laboratories, prototype programs, and specialized engineering projects. Thickness, purity, dimensions, tolerances, quantity, surface handling, and individual packaging can be reviewed together to match experimental and production requirements.
Individual Protection for Ultra-Thin Indium Foil
Soft indium can deform, adhere, or pick up surface marks during handling. MetalsTek uses product-specific protective packaging for ultra-thin sheets and drawing-based parts, helping preserve flatness, separation, and surface condition from production through international delivery.
See how dedicated tooling, controlled batch production, and individual protective packaging supported a demanding ultra-thin indium sheet project.
Read the Case Study →
Plan sourcing timelines with practical guidance on early product screening, end-use documentation, licensing considerations, and international delivery preparation.
Read the Buyer Guide →MetalsTek supports international delivery of China-origin indium products. Applicable export requirements are reviewed according to the specific product, destination, and application during order processing.
Send your required purity, thickness, dimensions or drawing, quantity, tolerances, destination, and delivery target. Our team will review manufacturability, packaging, documentation, and lead time for your project.
