As we all may know, PTFE and PVDF membranes are normally hydrophobic.  At Finetech, we also carry hydrophilic PTFE membrane filters and syringe filters.

The big difference between PTFE and PVDF is that PTFE membranes can be used in the filtration of strong acids and aggressive solutions, but PVDF membranes are more suited for the filtration of non-aggressive aqueous and mild organic solutions.

Also there are some similarities between these two membranes. Both membranes have low protein binding ability, can be used for the filtration of gases and air, and they both have good chemical compatibility.