3M™ Dyneon™ Fluoroelastomer FE 5840Q

Excellent Temperature and Chemical Resistance
3M™ Dyneon™ Fluoroelastomer FE 5840Q is a terpolymer of vinylidene fluoride, hexafluoropropylene and tetrafluoroethylene. It can be compounded using standard water cooled internal mixers or two roll mills with standard fillers and ingredients utilized in typical fluoroelastomer formulations. The dry ingredients should be blended before adding to the masticated gum. For best results, Dyneon fluoroelastomer FE 5840Q should be banded on the mill several minutes prior to adding the blended dry ingredients. Once mixed, the compounded stocks have good scorch resistance and storage stability. In addition, users have observed that FE 5840Q has low permeation, is clean running and offers excellent mold release.

Intermediate Viscosity and High Fluorine
Viscosity is an important consideration for many compounders and design engineers. Notably, Dyneon fluoroelastomer FE 5840Q has a very high fluorine content at 70.1% making it well suited for O ring, gasket and automotive fuel system applications.

The Right Size to Fit the Job
This product is sold in different sizes, so compounders and formulators can pick the right size for the job. Dyneon fluoroelastomer FE 5840Q is packaged in milled slab form (as opposed to unmilled forms like crumb) and is available in a returnable bulk shipping container system for 1,320 Ibs (600 kg) of material. The bulk container system is comprised of 48 individual polyethylene bags containing 27.5 Ibs (12.5 kg) of product. Smaller quantities are available in 55.1 Ibs (25.0 kg) boxes.

Delivering Custom Solutions
3M offers over 50 grades of fluoroelastomers with varying monomer composition, Mooney viscosity and fluorine content. This broad offering, combined with our expertise in application and product development, translates into greater design flexibility.


For decades, we have been able to supply unique solutions to meet the increasing market challenges in developing and producing state of the art fluoroelastomer products at the highest quality level. This goes hand in hand with our unparalleled commitment to research and customer support. Like all of our products, 3M™ Dyneon™ Fluoroelastomer FE 5840Q is backed by skilled researchers at several 3M tech service laboratories. Collectively, our staff has hundreds of years of experience researching, developing and improving upon fluoroelastomers. Toward that end, we are in regular communication with customers who deliver feedback – allowing us to improve existing products and deliver custom solutions. All of this is part of an unrelenting drive to deliver top products to our customers. From coatings to calendered sheets, tubing to molded goods, 3M has a solution for your specialty application.

Recommended Applications

• O ring


• Gaskets


• Automotive fuel system applications


• Compression, injection and transfer molding