Alkyd resin, a complex oil-modified polyester that serves as the film-forming agent in some paints and clear coatings. Developed in the 1920s, alkyd-based enamel paints were once one of the most important types of surface coating.
The alkyd resins belong to the family of thermosetting polyesters, organic macromolecules obtained through the reaction between an acid or an anhydride, an alcohol and a fatty acid or an oil. The oil content of the final product can be extremely variable (from 30 to more than 70% of the total volume of the resin) and it greatly influences the physico-chemical properties. The polymer structure of the alkyd resins makes them particularly suitable to be used as a basis for enamels and paints with different specific characteristics. The molecules of the structure, in particular, create strong structural interactions involving the formation of films able to cover any type of surface by protecting against aging, weather and wear. Historically, the paints based on alkyd resins have been among the first to be used in the field of the construction industry and, still today, they represent a preferred choice for the treatment of various materials, both for exterior and interior.
Orson Resins is supplier of Alkyd Resin, we offers different types of Alkyd resins.
What are the different types of Alkyd Resins?
There are three different types of Alkyd Resin based on the “length of the oil” which is the percentage of fatty acid in the resin.
- Short Oil Alkyd Resins : Less than 30% fatty acids
- Medium Oil Alkyd Resins : 45-55% fatty acids
- Long Oil Alkyd Resins : more than 55% fatty acids
The above distinctions hold significance as the drying time and physical characteristics of the final product including the flexibility and durability.
Due to the ease of application and quick drying capability at room temperature, the major applications of long oil alkyd resins is in architectural paints, marine paints, trim paints and decorative or house paints.
For more information on Alkyd resin Connect us on sales@orcpl.com