PVDF (Polyvinylidene Difluoride) [akaPVF2] is a fluorocarbon-based polymer. Polyvinylidene Fluoride (PVDF) can be considered as an intermediate between the easily Processed Polyethylene, and the very inert PTFE. It retains all the easy processing characteristics of polyethylene and much of the chemical resistance of PTFE, with the added advantage that the product is not micro porous.

Two of the most widely recognized brands of PVDF resins are Hylar® by Solvay  and Kynar® by Arkema Inc. Both offer comparable performance per industry standards for weathering.

PVDF coatings are durable, chemical resistant, and inert, with excellent dielectric strength (1500V/mil) and a lower cure temperature (500°F). While PVDF has a lower cure temperature, it also has a lower operating temperature (300°F ) when compared to other fluoropolymers. Additionally, PVDF has a higher coefficient of friction. PVDF is a true thermoplastic with very high chemical resistance. A two coat powder coating system about 350 μm thick is a lining which is very suitable for chemical plant. PVDF is easily process able with very good chemical and ageing resistance inflammable and excellent abrasion resistance with max usable temperature of 140^oC.

The chemical resistance of PVDF is very high. It resists conditions, usually regarded as aggressive. The polymer resists most chemical environments and is attacked only by strong hot oxidizing acids, fluorine and some aromatic amines. The major restriction with chemical resistance is due to the fact that the coatings are thin. PVDF is not micro porous like PTFE, but like all thermoplastics it has a finite permeability, particularly to small molecules.