Advanced nanotechnology

NAST® contributes to development and measures to improve sustainability within the hot- dip galvanized coating industry, consisting of reducing zinc consumption and at the same time improving surface technical barrier strength which contributes to increased corrosion resistance compared to the conventional galvanizing technique.

With the depletion of high-grade zinc ore, which also necessitates the extraction of zinc from electroplating waste, it is crucial to reduce zinc consumption in the electroplating process.

NAST has core competence in advanced materials technology and has participated in research and development work for several years. Startling research results show optimality in the application of world-leading nanotechnology to achieve corrosion resistance of galvanized thin plate substrates, be it in the form of electrogalvanized or hot-dip galvanized design.

Commercial applicability of metal-based substrates with inherently increased corrosion resistance means that the product must satisfy quality-related as well as price-related requirements. In parallel with the scientific development of nano based polymers, continuous sampling of surface-treated substrates and including mechanical loads in processing processes has been taking place.

The starting point for mechanical loading is typical technology for thin sheet processing which includes cold working and including: Bending/ lock forming folding/ rounding/ machine folding for spiro production and punching and pressing methods. Process treatments are then analyzed using spectrometry and overall results show no deformation or weathering of the applied polymer chemistry. Other polymer treatments outside the nanoscale and including based on µm, the polymer will establish a surface layer (sandwich structure) which is significantly affected during processing. In comparison, non-nano-based polymer establish a (sandwich structure), but in its form of atomic crystalline grain size gives no limitations for penetration into the surface of the substrate and to a conformal degree. As a whole, environmental corrosive stresses are thus limited to a significant extent, which are partly prominent in the degree of discoloration of substrates, delamination of applied dry/ wet lacquered surfaces and or degrading corrosion attacks which lead to deterioration of metal-based structures.

In the period from 2020 until today, the development work is concentrated around process manufacturing on a large scale based on world-leading nanotechnology as well as commercial application using advanced methods in process lines.