nSILVER® Anti-tarnish Coating
Does your jewelry tarnish before it reaches the retailer? We have the solution.
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.
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.
Benefits of nSILVER:
- Significant tarnish resistance improvement
- Safe coating materials
- Low cost of operating
- High capacity
- Good fit to existing manufacturing processes and logistics
- Proven and robust technology
nSILVER has been subjected to numerous industrially acknowledged anti-tarnish tests, and the results have been overwhelmingly impressive. nSILVER has proven its superior performance in the following tests:
- Salt spray test (DIN 50021 SS)
- Kesternich test (DIN 50018 KFW 0,2S)
- Sweat, seawater and perfume resistance tests
- Dilution resistance (alcohols and ketones)
- Climate test (DIN 58390-12-120, sharpness grade 7)
- UV exposure test (Sol 2)
- Commercial washing machine test
- Chemical dry-cleaning test.
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. The coating is pinhole-free and extremely uniform over the entire batch of coated articles.
Eliminating the white spots
The protective properties of nSILVER, besides preventing tarnishing, also impede the formation of white spots, which are material surface flaws characteristic of silver coins.
Protection of gold and copper
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. All metals (silver, copper and gold) can be coated with the same equipment with special coating stacks, which have been optimized for each metal. nSILVER can also be used to protect multi-metal articles, coins with jewels, painted mints and other more complex collector items.
Beneq nSILVER in the jewelry industry
Beneq nSILVER is used on an industrial scale by the follwing companies:
|Kalevala Jewelry (FI)||Marcel Robbez Masson (FR)||Ronda High-Tech (IT)|
|Jewelry manufacturer||Jewelry manufacturer||Job coater|