Direct to Metal (DTM) Specialty Protective Coatings

Specialized Metal Protective Coatings for Aluminum and Magnesium

NANOKOTE’s Aluminum and magnesium coating technology significantly enhances the lifespan of appliances such as refrigerators and air conditioners and durability of metal objects

Metal Protective Coatings (Speciality)

Refrigerator Coil

Direct to Concrete—PrimoGuard

Aluminium Materials

  • Coil exteriors for refrigerators, air conditioners etc.
  • Heat exchanger plates and fins

Our thin film (3-10 micron DFT) technology has been developed to enable the abandonment of hexavalent chromium and other heavy metals to provide environmentally friendly production processes for coating aluminum. Conventional coatings use chromium, zirconium or titanium on aluminum surfaces. These pre-treatments can be avoided where only alkaline cleaning is required prior to application.

These metal finishes are easy to clean and are very effective against corrosion

Our coatings are typically sprayed but can be also be applied using roller techniques and dip spin.
For Aluminum, the application process is fast: an alkaline clean is followed by spray application of the coating and then thermal curing of a few minutes. The fast application minimizes application costs and is ideal for large scale production.

Traditionally, coils and heat exchanges have utilized hydrophilic coatings to maximize heat transfer but these treatments become dirty and need maintenance to ensure the appliances and equipment operate without risk of overheating. These materials do not provide anti-corrosion metal or self-cleaning capabilities.

One of our R&D projects that currently underway is to produce a hydrophilic anti corrosion coating for aluminum.  Stay tuned as this is not far away.


Gradually the global market for coils and heat exchangers have been moving away from this older technology and adopting our technology to maximize the performance and longevity of their equipment and appliances. There has also been a need to remove the need to do any maintenance on these items. Our metal finishes enable maintenance-free operation and allow appliances and equipment to operate their whole design life.

Our customers benefit from the latest technology in coating coils and heat exchangers. Our customers market more sustainable, longer lasting products. The NANOKOTE coated light metals enable consistent heat transfer and ultimately allow equipment and appliances to operate without risk of overheating for the duration of their lifecycle.

Metal Protective Coatings (Speciality)

Magnesium Housings

  • Automotive industry (turbo chargers)
  • Mobile communications (phones, tablets)

Our thin film (3-10 micron DFT) technology has been developed to enable excellent anti-corrosion performance along with easy to clean self-cleaning properties on Magnesium. When treating Magnesium, there is a requirement to pre-treat the surface with chromium or an alternative technology such as a conversion prior to applying our metal finishes.

Our coatings are typically sprayed but can be also be applied using roller techniques.
NANOKOTE is highly cost competitive to produce permanent anti-corrosion metal and easy properties on light metals. For magnesium, the application process is fast, whereby, post pre-treatment the coating is applied by spray and then thermally cured for a few minutes. The fast application minimizes application cost and tailors towards large scale production.

Metal Protective Coatings (Speciality)

Traditionally, magnesium has been difficult to adequately protect against corrosion. Our treatments enable excellent corrosion protection on magnesium and in doing so, coated components also feature easy to clean properties.

Our customers benefit from utilizing the latest technology in providing anti-corrosion metal protection for magnesium so that their products last longer.

Call NANOKOTE for Stainless Steel Coatings

To learn more about the benefits of using our anti-corrosion coatings to preserve metallic parts, and to find the best option for your industrial needs, consult with our team today.