Polyvinylidene fluoride resin, known within the coating industry as PVDF, is commonly sold under the brand name Kynar. The material is extremely non-reactive with many different substances, and it’s a pure thermoplastic fluoropolymer that is often used when a coating that is extremely pure, strong, and able to resist heat, bases, acids, and solvents is needed. It also creates very little smoke when a fire occurs, and it is easier to melt because its melting point is around 177 degrees Celsius, which is quite a bit lower than most other fluoropolymers.
Kymer is classified as a fine powder, and it’s used in a wide variety of applications. In fact, it’s been used since the latter part of the 1960s, although most people still don’t know what it is. So what can Kynar do for you? Here are several of the ways this material is used in products you probably utilize every single day.
- It’s used to store chemicals that can’t be stored in containers that are made of glass or metal for many reasons. Tanks must be lined with Kynar in order to store things like chlorine and all of the halogens in the periodic table. Most of the acids that are extremely high strength must also be stored in tanks that are lined with Kynar. Kynar can also be molded into various shapes to form containers to hold some of these difficult substances.
- Sometimes this type of coating is used as an insulator. It’s a lot more robust than most other polymers that are commonly used as insulators. It can stand up to flames fairly well as long as the temperature does not get above its 177 degree Celsius burning point. When Kynar reaches its burning point, damage begins to occur. Many different kinds of wires are insulated with Kynar. Narrow 30-guage wire and printed circuit boards are two examples of products that are insulated with this type of coating.
- Kynar is also very resistant to ultraviolet rays and other types of radiation. Most products that can be compared to this type of coating are not as resistant to various forms of radiation.
- This type of coating is also beginning to be used in a variety of different sensors. Pressure sensors and thermal optic sensors are two examples. The reason Kynar works so well in these types of applications is because it has very high piezo-electric and thermal-electric values.
- Kynar is often used as a binder material in the electrodes that are on lithium ion batteries.
- This type of material is also used to create artificial membranes that are used in the world of biomedical science.
- Many types of monofilament fishing lines are made of this type of material. It’s more difficult for fish to see than other materials, and it’s harder, so it can resist abrasion and the sharp teeth of some fish. Since it’s denser than nylon, it also sinks more quickly.
As you can see, there are a variety of different applications for Kynar, most of which are as a coating. However, it can also be used as an additive for paint or in a few other ways. When Kynar is used as a coating, most of the time it is applied via electrostatic powder coating.
Expert Engineering PVDF Coatings
Let the experts at Toefco help you figure out if Kynar is the right product for your application. They are experts in engineering creative coatings that solve all of your problems. They are classified as a woman-owned supplier, which could help you meet your requirements for minority contracting. Their coating engineers have a passion for the science and the art of coating technology. They love tackling tough challenges when it comes to designing coatings, and they applaud when their customers succeed.
To learn more about FEP coatings, call us at 888-912-5921 or ask an industrial coating engineer.