Beneq is the world leader in ALD-based anti-tarnish coatings.

Anti-tarnish coatings

Tarnishing is a long–established challenge in the silver industry. Oxidation, sulfidation and corrosion cause discoloration of the silver surface, which decrease the shelf-life of silver products and collector items.

Beneq is the world leader in ALD-based anti-tarnish coatings with years of experience and proven performance in industrial high-capacity anti-tarnish applications.

Beneq nSILVER®, is an industrial-scale turnkey production solution for the protection of silver against tarnishing. It consists of optimized anti-tarnish production equipment and a unique coating process developed and patented by Beneq. The nSILVER anti-tarnish solution provides invisible tarnish resistance improvement with safe coating materials and low operating costs in a full solution package for mint and jewelry manufacturers around the world. nSILVER has been subjected to numerous industrially acknowledged anti-tarnish tests, and the results have been overwhelmingly impressive.

nSILVER is based on atomic layer deposition (ALD), a coating technology that enables growing of thin films on articles of any shape and orientation. It provides an ultrathin and totally conformal anti-tarnish coating, which is fully transparent on silver.

In addition to nSILVER, which was originally developed and optimized for anti-tarnish protection of silver, Beneq has also developed special coatings to protect copper and gold.

Learn more about Beneq nSilver anti-tarnish coatings


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Application examples

  • Chip-level ALD moisture barrier for components on tape
  • ALD anti-corrosion coating for semiconductor equipment parts
  • ALD gate dielectric for GaN power devices
  • ALD gate insulator for displays
  • Ultimate moisture barriers for OLED micro-displays from Beneq
  • Lumineq EL40S electroluminescent display by Beneq
  • Transparent electrode for displays by Beneq ALD
  • ALD is the ultimate moisture barrier for PCBs
  • Beneq FBR ALD reactor for moisture barriers of phospor powder
  • Beneq ALD coatings offer protection against corrosion in LED packaging.
  • Beneq ALD provides metal-like coatings for watch parts and fine mechanics.
  • Beneq ALD coatings for wafer-level moisture protection
  • Beneq ALD coatings provide high-quality reflectors for LED
  • Beneq ALD coatings boost the performance of diffractive gratings
  • Beneq provides ALD coatings to protect electronics components from corrosion
  • ALD coatings provide interface layers between materials in CIGS panels.
  • Beneq ALD coatings increase the lifetime of Li-Ion batteries
  • ALD is ideal for optical filters on complex surfaces.
  • Beneq ALD optical coatings increase the lifetime of high power lasers
  • ALD-based conformal moisture barrier coatings for microchannel plates from Beneq.
  • OLED lighting encapsulation with Beneq TFS 600. Fully automated and vacuum-line integrated. For industrial OLED encapsulation.
  • X-ray imaging scintillator plate encapsulation with Beneq Coating Services and Beneq P800 batch coating products

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