Nano-coatings

MAVRO has been active in the development of nano surface technology since the foundation of the company
Sustainable
Self-cleaning coatings
Reduced maintenance costs
Delays degradation

NANO-Coatings

MAVRO has been active in the field of nano surface technology since the establishment of the company in the 1990s. Virtually every conceivable surface such as wood, stone, metal, plastic, glass, ceramics, solar panels, textiles and varnish can be preserved with our NITOGUARD coating systems and protected against external influences. Proven technology with unprecedented possibilities.

Nanotechnology concerns the research, processing and application of materials and objects with a size of 1 to 100 nanometers.

The protective layer formed with nano-coatings contains silicon dioxide. A number of self-cleaning nano-coatings also contain titanium dioxide.

Titanium dioxide
Titanium dioxide is extracted from titanium ore and is often used as a colorant. TiO2 is used in coatings for its self-cleaning photocatalytic properties. Titanium dioxide can break almost all organic compounds when exposed to UV.

Silanes, Siloxanes, Silicones and (Poly-) Silazanes
Depending on the substrate and the desired properties, specific coatings are formulated that lead to the best result. Various Silicon (Si) containing substances are used to form the final SiO2 layer:

Silanes
Constructed from Silicon and Hydrogen atoms. Have a very small molecular structure through which they can penetrate deep into very dense mineral surfaces. The chemical reaction with the surface creates a very thin stable protective layer.

Siloxanes
Constructed from silicon and oxygen atoms. Siloxanes are larger than Silanes and are therefore used in more porous mineral surfaces. The chemical reaction with the surface creates a very stable protective layer.

Silicone
Constructed from silicon and oxygen atoms. Silicones have a larger molecular structure than Silanes and Siloxanes, so they are applied to very porous mineral surfaces.

Polysilazanes
Constructed from silicon and nitrogen atoms. The structure can be compared with that of siloxanes. Polysilazanes are a sequence of several silazanes. Polysilazane coatings form a very strong vitreous protective layer (approximately 200 to 500 nanometers thick) on non-porous substrates. These are also called barrier coatings or ceramic coatings.

The effect of the NANO-Coating

The effect created with a Nano Coating is often the result of consciously changing the surface energy of the coated object. Each material has a certain surface energy (in the case of liquids: surface tension), the behaviour of a liquid on a solid surface depends on the surface energy of the subsurface:

Low surface energy
If a drop forms, the surface has a low surface energy

High surface energy
If the droplet spreads, the surface has a high surface energy

Nanotechnology – 6
Hydrophobic + Hydrophilic

Hydrophilic contact angle 0 – 10 °
Complete wetting of the surface; the water droplet distributes completely over the surface

Normal contact angle 10 ° – 80 °
Water drop humidifies the surface moderately to well

Hydrophobic (easy to clean) contact angle 80 ° – 140 °
Poor wetting, the water drop rolls off the surface

Super Hydrophobic (lotus effect) Contact angle 140 °
Practically no wetting of the surface, water drop rolls off very strongly from the surface

Benefits of the nano-coatings

  • Lower maintenance and cleaning costs
  • Better appearance
  • Less pollution of the treated surface
  • Durable: wear-resistant, protects against corrosion, erosion, weather influences and (salt) water, chlorides, acids and oils
  • Higher efficiency with solar panels
  • Reduces cleaning costs: dirt and grease thus glides away from windows and solar panels. This makes cleaning safe and cost-conscious
  • Protects against vandalism: forms an effective permanent anti-graffiti or anti-urine protective layer
  • Delays degradation: Sustainable protection for fragile and porous objects such as bridges, monuments etc.
  • Promotes safety: dangerous fungi and bacteria no longer attach to the substrate

Choice of the right nano-coating system

Our technical advisors are happy to help with the choice of nano-coating. It is important to first determine the effect of the coating on the substrate.

1 Water-repellent and dirt-repellent – these are hydrophobic and oleophobic coatings

2 Self-cleaning

3 Specific properties such as protection against heat, fingering, graffiti, corrosion or urine.

The NITOGUARD nano-coatings can be applied to almost any surface and are available in various qualities. It’s wise to first set a test area. This can be done on location with the help of a technical advisor or in our own laboratory.

In addition to the trial, we also provide the writing of an advice report. This contains an extensive description of the pre-treatment and application requirements of the nano-coating. Naturally, we also take the maintenance instructions into account.

The references show various projects that we have done in recent years with the NITOGUARD nano-coatings. From protecting lifts, exhausts, cars, furniture, solar panels, natural stone, kitchen countertops to façades.

Impression NITOGUARD GLASS

Products
Need help with the choice of the product? Our specialists are happy to assist you and assist you in making a test.

Documentation
We have a Product Sheet (TDS) and a Safety Data Sheet (MSDS) for each product. This contains, among other things, the instructions for use and first aid measures. Read these sheets carefully before using our products.

Product sheets Safety sheets

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