Surface Coating / Alfa Chemistry

Customized Nanocoating on Polyester Substrate


Polyester is a man-made fabric that is usually made from petroleum. This fabric is one of the most widely used textiles in the world, with tens of thousands of consumer and industrial uses. Polyester is a polymer that is mostly made up of compounds with the ester functional group.

Polyester-thread woven or knitted fabrics are commonly utilized in garments and home furnishings. Bottles, films, tarpaulins, liquid crystal displays, filters, dielectric films for capacitors, and insulating films for electrical cables and insulating tapes are all made of polyester.

Polyester with functional surfaces can give significant performance improvements in a wide range of applications. Alfa Chemistry provides functionalized surface coating services for polyester substrates that are one-of-a-kind. With our wide and straight forward surface modification processes, you can change the surface properties of practically any polyester-related product. Working with us gives you the assurance that you'll be able to change the surface of your product with ease!

Extensive Surface Modification Technology Options

Alfa Chemistry provides a variety of polymer surface coating technologies to its customers, which can be used to functionalize the surface of polyester materials in a variety of ways to improve their varied surface qualities. Our surface modification technology options include, but are not limited to, the following.

  • Surface Waterproof Coating Technology - We can make the surface of polyester materials water and oil resistant by functionalizing the surface, making them resistant to nearly any liquid.
  • Hydrophilic Coating Technology - We apply specialist surface coating technology to functionalize the surface of polyester materials with hydrophilic qualities, resulting in materials that are extremely hydrophilic.
  • Particle Modification Coating Technology - By functionalizing polyester particles, Alfa Chemistry can improve particle behavior, reduce aggregation, and boost cross-linking.
  • Lubricant Coating Technology - We can functionalize the surface of polyester materials to improve surface lubricity.

All of these nanoscale coatings are chemically stable, optically transparent, and extremely long-lasting.

Customized Nanocoating on Polyester Substrate

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

Alfa Chemistry Coating Solution Cases

Case 1: Water-Repellent Polyester Textiles

Because of its potential applications in outdoor clothing and protective textiles, combining hydrophobic and superhydrophobic qualities in textile surfaces has gotten a lot of interest. Alfa Chemistry has developed a new, cost-effective method for converting water-absorbent polyester fabrics into water-repellent textiles with hydrophobic qualities by using super-thin layers of surface-modified superhydrophobic precipitated calcium carbonate (SHPCC).

Behavior of water on (a) non treated fabric, and (b) treated fabric as sample.Fig 1. Behavior of water on (a) non treated fabric, and (b) treated fabric as sample. (Abeywardena M. R, et al. 2021)

The dip coating process was utilized. To make SHPCC, dolomite was employed as a calcium precursor, and stearic acid (SA) was used as a surface modifier for calcium carbonate and a surface binder for the finished product. The hydrophobic layer demonstrated self-cleaning behavior and reasonable durability under the test circumstances of mechanical abrasion and washing, according to the results.


  • Abeywardena M. R, et al. (2021). "Fabrication of Water-Repellent Polyester Textile via Dip-Coating of In-Situ Surface-Modified Superhydrophobic Calcium Carbonate from Dolomite." Colloids and Surfaces A: Physicochemical and Engineering Aspects. 629: 127397.

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

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