Surface Coating / Alfa Chemistry

Customized Nanocoating on Stainless-Steel Substrate


Stainless steels with functional surfaces offer numerous performance benefits in a wide range of applications, and Alfa Chemistry provides unique functionalized coating services for stainless steel substrates. With our simple-to-apply, specific treatment technologies, you can improve the performance of practically any stainless steel product. Join together with us to make your stainless steel surfaces more functional!

Extensive Surface Modification Technology Options

Alfa Chemistry has a variety of surface modification technologies that can functionalize stainless steel to provide numerous performance benefits. Our surface modification options for stainless steel substrates include:

  • Surface Waterproofing Coating Technology - Stainless steel substrates can be functionalized to be extremely water and oil repellent, as well as highly repellent to practically all liquids.
  • Hydrophilic Coating Technology - The surface of stainless steel substrates can be functionalized to make them very hydrophilic.
  • Adhesion Promotion Coating Technology - We can improve the adhesive qualities of stainless steel surfaces by functionalizing them.
  • Particle Modified Coating Technology - Alfa Chemistry can improve particle behavior, minimize aggregation, and maximize cross-linking by functionalizing stainless steel powders and particles.
  • Lubricant Coating Technology - Stainless steel substrates can be functionalized to reduce surface friction.

These nanoscale coatings are optically clear and long-lasting.

Extensive Surface Modification Technology Options

Learn more about our hydrophobic and oleophobic coatings.
Learn more about our hydrophilic coatings.
Learn more about our adhesion promotion coatings.
Learn more about our particle-modified coatings.
Learn more about our lubricant coatings.

Alfa Chemistry Coating Solution Cases

Case 1: Co-Ni-Fe nanoparticle coating

Coating Co-Ni-Fe nanoparticles on stainless steel substrates was done using an electrodeposition approach. After 30 minutes, a smooth coating surface with good corrosion resistance and high microhardness was formed.

Case 2: Superhydrophobic SiO2 coating

We prepared SiO2 nanocoatings on stainless steel substrates using a sol-gel method and a dip-coating technique with tetraethyl orthosilicate as the precursor. After modifying the superhydrophobic SiO2 coating with fluoroalkylsilane, which is acid and alkali corrosion resistant to some extent, the superhydrophobic SiO2 coating was created. The coating's water contact angle was 154.7°.

Case 3: Nano-bioceramic coating

In the production of bone implants, stainless steel 306L is often employed. Their key feature is that they have excellent mechanical qualities. However, their corrosion resistance in physiological and bioactive fluids has been a source of worry. Alfa Chemistry used a sol-gel approach to make homogenous nano-bioceramics and then used electrophoresis to apply the surface treatment on 316L steel. The corrosion resistance of the stainless steel matrix was increased by the coating, resulting in a nine-fold increase in the corrosion resistance of 316L steel.

FESEM micrographs of (a) Co, (b) Co-Ni-Fe nanoparticles (30 mins), and (c) Co-Ni-Fe nanoparticles (90 mins).Fig 1. FESEM micrographs of (a) Co, (b) Co-Ni-Fe nanoparticles (30 mins), and (c) Co-Ni-Fe nanoparticles (90 mins). (Resali N. R, et al. 2013)

Why Choose Alfa Chemistry?

  • We have a lot of experience with surface modification and have been working on different surface chemistry techniques for stainless steel surfaces.
  • Our coatings are light, environmentally friendly, and safe.
  • We create easy-to-clean solutions that are tailored to your products' specific requirements.


  • Resali N. R, et al. (2013). "Cobalt-Nickel-Iron Nanoparticles Coated on Stainless Steel Substrate." Procedia Engineering. 68: 30-36.

Our products and services are for research use only and cannot be used for any clinical purpose.

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