Gold · 4N — Electronic brazing and technical gold leaf

Gold Sheet and Foil

Pure gold sheet and foil (Au ≥ 99.99% — 4N) cold-rolled from 0.025 mm thick. Used in brazing of high-vacuum joints, contact plating, cryogenic thermal shielding and CF flange sealing washers. Cut to size with certificates.

  • Au >= 99.99% · Thicknesses 0.025-2 mm · Tolerances ±5%
  • Fully annealed: maximum ductility without work hardening
  • Foil for sealing gaskets in CF-16 to CF-200 flanges (UHV)
  • Absolute resistance to oxidation and sulphidation
  • Certificates with composition analysis by X-ray fluorescence