What is the difference between urethan and epoxy?
urethan and epoxy are used in many industrial products, including active substances, colors, adhesive agents, foams and resins. There are similarities between urethan and epoxy, but their differences are more evident and it seems that each industry has its own preference. In terms of color, chemical resistance, flexibility and texture, urethan and epoxy are very different and export these differences that most industries choose which one to use. As for the price, both are about the same, so it is not a real factor in their difference. Epoxide is not resistant to ultraviolet light, so even if the color does not change immediately, the epoxy will begin yellow after several months or years. Urethan, which is resistant to ultraviolet light, remains the Sabba color for a much longer time than epoxy. Epoxide is highly resistant to chemicals and can take many acids and bases without being diluted. Urethan is only slightly resistant and although it can take dilute bases and acids, it will wear much faster než epoxide.
In the adhesive and foam industry, where urethane and epoxy substances are used together for connecting surfaces, flexibility and strength are important depending on the needs of industry. Epoxide is considered to be a substance with higher strength because it prevents surface movement. Although strong, it can burst when used on surfaces that often move. Urethane is able to remain flexible, which is necessary in structures that increase smaller based on the season and temperature.
The texture of urethane and epoxy also changes various industries based on whether the substance must be chalk or smooth. Epoxy substances, especially after aging, become challenge and can be fragile to the touch. Urethan will remain smooth throughout his life and is better for surfaces or areas where the substance will be exposed to water.
chemically are epoxy and urethan polymers or large molecules that contain repeatingwith a structure. Epoxide is made of epoxy and polyamine as a mixture of resin and hardness. Urethane consists of organic or carbon connections that react with a monomer or chemically binding element.