Surface Coating / Alfa Chemistry

Customized Nanocoating on Granite Substrate


Granite is a monocrystalline intrusive igneous rock with quartz, alkali feldspar, and plagioclase as the primary constituents. Magma with considerable concentrations of silica and alkali metal oxides cools and hardens slowly underground, resulting in it. The continental crust of the Earth contains a lot of it. Granite is a dense, strong, and robust stone that has been utilized widely throughout human history, as well as more recently as a long-lasting building material. Granite also has a significant quartz concentration, which contributes to its chemical stability.

In a wide range of applications, granite materials with functional surfaces can provide many unique features. Alfa Chemistry provides granite substrates with specialized and unique functionalized surface coating services. You can adjust the surface properties of practically any granite-related product using our wide and simple surface modification methods. Please contact us if you want to be sure that you can simply change the surface of your product!

Extensive Surface Modification Technology Options

Alfa Chemistry provides a range of glass and ceramic surface coating technologies that can be used to functionalize the surface of granite materials in a variety of ways to impart a variety of unique surface qualities. The following are some of our surface modification technology possibilities, however, they are not exhaustive. For more technical details, please contact us.

  • Surface Waterproof Coating Technology - We can coat the surface of granite substrates with hydrophobic and oleophobic qualities to make them highly water and oil-resistant while yet being permeable to all liquids.
  • Hydrophilic Coating Technology - By functionalizing the surface of granite, we can make it very hydrophilic, attracting water and allowing it to pass through it easily.
  • Lubricant coating technology - We can improve the surface friction properties of granite by functionalizing its surface.

Customized Nanocoating on Granite Substrate

Learn more about our hydrophobic and oleophobic coatings.
Learn more about our hydrophilic coatings.
Learn more about our lubricant coatings.

Alfa Chemistry Coating Solution Cases

Case 1: Polydimethylsiloxane coating to reduce weathering effects on granite

Although granite is commonly thought to be a fairly durable stone, exposure to numerous weathering events on a daily basis may weaken its strength as a building material. Polydimethylsiloxane (PDMS) coatings are an intriguing solution to stone protection that has received a lot of attention in recent years. This is because PDMS coatings have a high degree of elasticity, toughness, and homogeneity.

Alfa Chemistry has developed sprayable polydimethylsiloxane (PDMS) solution for use on granite to provide a long-lasting, weather-resistant surface covering. When compared to the reference coating, the appropriately thick PDMS coating demonstrated outstanding resilience in all weathering tests, since the weathering had no effect on the hydrophobic functioning of the PDMS coated samples. Furthermore, the PDMS-coated stones outperformed the untreated stones in terms of weathering stability due to the outstanding water and salt barrier capabilities of PDMS.

The PDMS coating showed good stability in all weathering tests studied.Fig 1. The PDMS coating showed good stability in all weathering tests studied. (Kronlund D, et al. 2016)

Why Choose Alfa Chemistry?

  • We have extensive experience in surface modification and have been working on different surface chemistry techniques regarding tin.
  • Our custom coatings are lightweight, environmentally friendly and safe.
  • We create the right solution for the specific requirements of your product.


  • Kronlund D, et al. (2016). "A Polydimethylsiloxane Coating to Minimize Weathering Effects on Granite." Construction and Building Materials. 124: 1051-1058.

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

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