3M™ Dyneon™ Low Temperature Fluoroelastomer LTFE 6320Z

Improved Low Temperature Performance
Vehicles and equipment operating in extremely cold environments require sealing materials that won’t shrink, stiffen or crack. 3M™ Dyneon™ Low Temperature Fluoroelastomer LTFE 6320Z is designed for improved low temperature performance compared to standard peroxide curable grades – but at a lower cost for applications that don’t require 40ºC performance.


Dyneon low temperature fluoroelastomer LTFE 6320Z offers true dynamic sealing at temperatures down to 30ºC, making it an excellent option for fuel injector O rings and other low temperature sealing applications. LTFE 6320Z is similar in formulation and properties to 3M™ Dyneon™ Low Temperature Fluoroelastomer LTFE 6350Z, but at a lower viscosity for optimized processing.

A Versatile Fluoroelastomer
Dyneon low temperature fluoroelastomer LTFE 6320Z has a number of favorable attributes that make it suitable for use in injection and transfer molding, extrusion and calendering. It has excellent physical properties and offers outstanding chemical resistance for product durability and longevity.


LTFE 6320Z 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, LTFE 6320Z should be banded on the mill prior to adding the blended dry ingredients. Once mixed, the compounded stocks have good scorch resistance and storage stability.

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™ Low Temperature Fluoroelastmer LTFE 6320Z is backed by skilled researchers at several 3M tech service laboratories. Collectively, our staff has decades 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

• Injection molding


• Transfer molding


• Extrusion


• Calendering