A broad family of fluoroelastomers for demanding sealing and containment applications.
In 1969, astronauts boarded the Apollo 11 spacecraft wearing boots containing 3M™ Dyneon™ Fluoroelastomers. Today, these synthetic elastomeric materials are used in some of the toughest environments on earth. From hot-running automotive engines to harsh chemicals of semiconductor manufacturing and demanding conditions of oil and gas exploration, Dyneon fluoroelastomers stand up to the most challenging sealing applications.
Dyneon Fluoroelastomers (FKM & FFKM) give processors and end users flexibility in choosing materials with the optimal balance of thermal resistance, chemical resistance and sealing strength for the job at hand. We offer a wide range of options for a variety of performance characteristics in extreme environments, including excellent retained sealing force, resistance to concentrated sodium chloride, and service temperatures above 250ºC. Whatever your application, our technical experts can help you identify the optimal fluoroelastomer compound so you can manufacture quality, cost-effective sealing components.
Available with a range of viscosities and cure technologies, 3M dipolymers and terpolymers can be specified to provide a number of advantages over conventional fluoropolymers. Depending on the product and application, benefits may include improved acid resistance, scorch resistance, elongation retention and more.
3M™ Dyneon™ Base Resistant Elastomers (BREs) offer improved chemical resistance in basic (high pH) environments such as high-amine automotive oils and lubes, coolants and transmission fluids – making them ideal for many engine, transmission and shaft seals.
In extreme cold, conventional elastomers can shrink, stiffen or crack, and seal failure can seriously damage equipment or vehicle reliability. 3M™ Dyneon™ Low Temperature Fluoroelastomers (LTFE) are designed to keep equipment running even in arctic conditions, with a true dynamic sealing capability that is effective at temperatures as low as -40°C.
Typically used in extreme environments where other elastomer materials cannot perform due to thermal, chemical or purity conditions, 3M™ Dyneon™ Perfluoroelastomers feature the highest degree of purity and chemical resistance in our portfolio. With a temperature range of continuous use up to 315°C, these materials play a critical role in many sensitive aerospace, semiconductor and oil and gas recovery applications.
The very characteristics that help fluoroelastomers perform in aggressive environments can also make them difficult to process – and that can be a real “sticking point” for processors. Elastomer compounds can stick during compression and injection molding processes, and extruded parts may be dry or rough – which can compromise seal life and integrity. 3M™ Dynamar™ Rubber Additives deliver better mold flow and release, for parts with sharper edges and smoother surfaces.
3M™ Dynamar™ Rubber Curatives are engineered to customize the cure of many fluoroelastomer compounds. These additives provide important benefits for both processors and end-users – with excellent dispersion, fast and easy incorporation, and less sensitivity to sulfur contamination.