It was in 2014 that the company unveiled a new treatment family, known as NanoDeCo® , derived from ALD technology.
ALD (or Atomic Layer Deposition) is a gaseous phase chemical deposition process used to obtain low-stress layers.
As a business, POSITIVE COATING’s pulled off the feat of being able to transpose ALD technology, initially used in the semi-conductors industry for its diffusion barrier properties, by adapting it to the watchmaking sector for its decorative and anticorrosive properties.
The advantage of this technology lies in the fact that these treatments are perfectly compliant and uniformly deposited, with a precision of around one nanometre. So these layers meet the highest requirements of micro-technology.
THE THICKNESS OF OUR COATINGS IS 1000 BILLION TIMES LESS THAN THE ALTITUDE OF LA CHAUX-DE-FONDS
These treatments stand out for a wide range of colours and shades, perfectly repeatable and applicable to parts with complex 3D geometries.
Control of the deposited layers to a nanometric scale results in a tiny thickness allowance, in order to conserve the surface mechanical decorations.
ALD treatments are reversible processes, despite the very high chemical stability, and guarantee excellent protection against corrosion of metal substrates.
The deposition temperature is between 100 and 300 °C.
HEAVY METAL (TUNGSTEN)